EXB250 48V SERIES Embedded Power for Business-Critical Continuity Single Output Rev.10.11.07 exb250 48v series 1 of 36 EXB250 48V SERIES Total Power: Input Voltage: # of Outputs: 165 W 33 - 75 VDC Single Special Features * High efficiency topology, 90% typical at 3.3V * High output current, high useable power density * Industry standard footprint * Wide operating temperature, 40C to +100C (baseplate temperature) * 90% to 110% output trim * No minimum load * Overvoltage protection * Remote on/off * Approvals to EN60950 (TUV Rheinland) and UL/cUL1950 * Complies with ETS 300 019-13/2-3 * Complies with ETS 300 132-2 (input voltage and current requirements) * Complies with ETS 300 386-1 * Available RoHS compliant * 2 year warranty NOTICE SOME MODELS LISTED IN THIS DOCUMENT HAVE BEEN DISCONTINUED Please contact your local Artesyn representative or use the on line model number search tool at http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. The EXB250 is a new high efficiency, open-frame, isolated 165 Watt converter series. The EXB250 delivers very high output current at low voltages and excellent useable power density for today's high-end applications. The design takes advantage of open-frame construction to provide a low weight, low thermal impedance baseplate design. The simplicity of the baseplate design enables customers to easily manage cooling of the product, eliminating the guesswork associated with competing products. The seven models in the series feature an input voltage range of 33 to 75VDC and are available in output voltages of 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V and 1.2V. The output voltage on each model is adjustable from 90% to 110% of the nominal value. Typical efficiencies for the models are 90% for the 3.3V, 88% for the 2.5V, and 87% for the 1.8V version. The EXB250 series also has a remote on/off capability. Overcurrent and overvoltage protection features are included as standard. With full international safety approval including EN60950 (TUV Rheinland) and UL/cUL1950, the EXB250 reduces compliance costs and time to market. Rev.10.11.07 exb250 48v series 2 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability. Absolute Maximum Ratings Characteristic Symbol Min Input voltage - continuous Vin (cont) Input voltage - peak/surge Typ Max Units Notes and Conditions -0.3 75 V DC Vin(+) - Vin(-) Vin (peak) -0.3 100 V DC Peaks of any duration, converter OFF above 80V, nonlatching, unit ON once Vin <75V Input voltage - remote pin Vrem (peak) -0.3 75 V DC Peaks of any duration Operating temperature Top -40 100 C Measured at baseplate Storage temperature Tstorage -40 125 C Output power (1.2V) Pout (max) 72 W Output power (1.5V) Pout (max) 90 W Output power (1.8V) Pout (max) 108 W Output power (2.5V) Pout (max) 150 W Output power (3.3V) Pout (max) 165 W Output power (5V) Pout (max) 165 W Output power (12V) Pout (max) 165 W All specifications are typical at nominal input Vin = 48V, full load at 25C unless otherwise specified. Input Characteristics Characteristic Symbol Min Typ Max Units Input voltage - operating Vin (oper) lin 33 48 75 V DC Input current - no load (1.2V) 67 85 mADC Vin (min) - Vin (max), enabled Input current - no load (1.5V) lin 80 100 mADC Vin (min) - Vin (max), enabled Input current - no load (1.8V) lin 110 135 mADC Vin (min) - Vin (max), enabled Input current - no load (2.5V) lin 95 115 mADC Vin (min) - Vin (max), enabled Input current - no load (3.3V) lin 114 145 mADC Vin (min) - Vin (max), enabled Input current - no load (5V) lin 110 145 mADC Vin (min) - Vin (max), enabled Input current - no load (12V) 112 145 mADC Input current - Quiescent lin lin (off) 26 35 mADC Vin (min) - Vin (max), enabled Converter disabled Input voltage variation dv/dt 5 V/ms Complies with ETS300 132 Part 4.4 2 Inrush current (i t) linrush 2 0.03 As Notes and Conditions Complies with ETS300 132 Part 4.7, with recommended LISN and recommended external bypass capacitor Inrush current ratio Input ripple rejection Input fuse It/Im 6.8 Complies with ETS300 132 Part 4.7, with recommended LISN and recommended external bypass 50 10 capacitor dB A Frequency <1 kHz Slow Blow/Antisurge HRC recommended 200V Rating. See Application Note 119 Rev.10.11.07 exb250 48v series 3 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Turn On/Off Characteristic Symbol Min Typ Max Units Input voltage - turn on Vin (on) 30 32.5 34.0 V DC Input voltage - turn off Vin (off) 29 30.5 33.0 V DC Hysteresis 3 Notes and Conditions V DC Turn on delay - enabled, then power applied Tdelay (power) 10 14 msec With the Remote On/Off signal asserted, time from when Vin > Vin (oper) until Vout is within total regulation band Turn on delay - power Tdelay 3 5 msec With Vin = Vin (nom), then applied, then enabled (enable) Remote On/Off asserted, time until Vo is within total error band Rise time Trise 1.0 2.0 msec From 10% to 90%, full resistive load, no external capacitance Rev.10.11.07 exb250 48v series 4 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Signal Electrical Interface Characteristic - Signal Name Symbol Min Typ Max Units At Remote ON/OFF pin Open collector or equivalent compatible Notes and Conditions See Notes 1 and 2 Control pin open circuit voltage Vih 4 High level input voltage Vih 4 High level input current Iih Acceptable high level leakage current Iih (leakage) Low level input voltage ViI Low level input current IiI Low level input current Iil (max) 4.5 V Iih = 0A; open circuit voltage V Converter guaranteed ON when control pin is greater than Vih (min) 10 A Current flowing into control pin when pin is pulled high (max. at Vih = 75V) -10 A Acceptable leakage current from signal pin into the open collector driver (neg = from converter) 1.2 V Converter guaranteed off when control pin is less than Vil (max) -0.2 -0.4 mA Vil = 0.4 V -0.2 -0.4 mA ViI = 0.0 V, maximum source current from converter with short circuit -0.3 5 Common Protection/Control Characteristic Symbol Min Typ Max Units Notes and Conditions Overtemperature shutdown threshold Tots 110 115 120 C Baseplate temperature, non-latching shutdown protection Overtemperature shutdown - restart hysteresis 4 Remote sense compensation C 10 % % of Vo (nom), compensation includes trim. See Application Note Max Units Notes and Conditions Reliability and Service Life Characteristic Symbol Min Typ Mean time between failure MTBF 1,598,243 Hours Telcordia SR-332, Vin = Vin (nom); Iout = Iout (max); ambient 40C; ground benign environment Mean time between failure MTBF >2,000,000 Hours Demonstrated HALT testing Completed Asynchronous dynamic testing Completed Isolation Characteristic Symbol Min Typ Input to output test voltage Input to output capacitance Input to output resistance Input to output insulation system 2000 100 Max Units Notes and Conditions 1500 V DC Test duration 1s pF M Operational Measured with 500 V DC Rev.10.11.07 exb250 48v series 5 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Other Specifications Characteristic Symbol Min Typ Max Units Notes and Conditions Switching frequency fsw 340 400 460 kHz Fixed frequency (all models) g Statistical weight data available Max Units Notes and Conditions 100 C Baseplate temperature 3000 m 9843 ft 10000 m 32808 ft Derate total max. output current by 20% Derate total max. output current by 20% Derate total max. output current by 50% Derate total max. output current by 50% Weight 73 Environmental Requirements Characteristic Symbol Thermal performance Min Typ -40 Altitude Type Parameter Reference Test Level Notes and Conditions Air temperature Low High Change IEC 68-2-1 IEC 68-2-2 IEC 68-2-14 -40C +65C -40C to +65C All characteristics and parameters extracted from ETS 300 019 classes 3.1, 3.2, 3.3, 3.4 and 3.5 Tmax. = +65C for T3.4 Relative humidity Low High Condensation IEC 68-2-56 IEC 68-2-30 10% 100% 90 to 100% Vibration IEC class 3M5 Freq. velocity Freq. acceleration IEC 68-2-6 IEC 68-2-6 5-9Hz 5mm/s 9-200Hz 1g Shocks IEC class 3M5 Acceleration IEC 68-2-29 10g Referenced ETSI standards: ETS 300 019: Environmental conditions and environmental tests for telecommunications equipment ETS 300 019: Part 1-3 (1997) Classification of environmental conditions stationary use at weather protected locations ETS 300 019: Part 2-3 (1997) Specification of environmental tests stationary use at weather protected locations EMC Electromagnetic Compatibility Phenomenon Port Standard Test level Criteria Notes and conditions ESD Enclosure EN61000-4-2 6kV contact 8kV air NP RP As per ETS 300 386-1 table 5 EFT DC power EN61000-4-4 EN61000-4-4 Radiated field Enclosure EN61000-4-3 NP LFS NP LFS NP As per ETS 300 386-1 table 5 Signal 2kV 4kV 1kV 2kV 10V/m See Application Note 119 See Application Note 119 As per ETS 300 386-1 table 5 Conducted DC power Signal EN61000-4-6 EN61000-4-6 10V 10V NP NP As per ETS 300 386-1 table 5 See Application Note 119 Input transients DC power ETS 300 132 ETR 283 Immunity: Rev.10.11.07 exb250 48v series 6 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EMC Electromagnetic Compatibility Phenomenon Port Standard Test level DC power EN55022 Level A Criteria Notes and conditions Emission: Conducted EN55022 Signal Radiated EN55022 TBD EN55022 TBD Level B With recommended external filter for compliance bandwidth 20 kHz to 30 MHz, as per ETS 300 386-1 With recommended external filter for compliance bandwidth 20 kHz to 30 MHz, as per ETS 300 386-1 Bandwidth 150kHz to 30MHz, as per ETS 300 386-1 Bandwidth 30 MHz to 1 GHz, as per ETS 300 386-1 Performance criteria: NP: Normal Performance: EUT shall withstand applied test and operate within relevant limits as specified without damage RP: Reduced Performance: EUT shall withstand applied test. Reduced performance is permitted within specified limits, resumption to normal performance shall occur at the cessation of the test LFS: Loss of Function (self recovery): EUT shall withstand applied test without damage, temporary loss of function permitted during test. Unit will self recover to normal performance after test Standards Compliance List Characteristic EN60950 UL/cUL 1950 TUV Rheinland 3rd edition Safety Agency Approvals Standard Category UL/cUL 1950 File Number TUV Rheinland Certificate No. E135734 R2172505 Material Ratings Characteristic - Signal Name Notes and Conditions Flammability rating Material type UL94V-0 FR4 PCB, T-LAM IMS - Baseplate Model Numbers Model Number EXB250-48S1V2J EXB250-48S1V5J EXB250-48S1V8J EXB250-48S2V5J EXB250-48S3V3J EXB250-48S05J EXB250-48S12J Input Voltage Output Voltage Overvoltage Protection Output Current (Max.) Typical Efficiency 33-75 VDC 33-75 VDC 33-75 VDC 33-75 VDC 33-75 VDC 33-75 VDC 33-75 VDC 1.2V 1.5V 1.8V 2.5V 3.3V 5.0V 12.0V 1.44V 1.9V 2.5V 3.0V 4.0V 6.0V 14.4V 60A 60A 60A 60A 50A 33A 13.75A 84.0% 85.5% 87.0% 88.0% 90.0% 91.7% 92.0% Rev.10.11.07 exb250 48v series 7 of 36 Technical Reference Note - EXB250 48V SERIES Single Output RoHS Compliance Ordering Information The `J' at the end of the part number indicates that the part is Pb-free (RoHS 6/6 compliant). TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special request, please contact your local sales representative for details. EXB250-48S1V2J Model Input Characteristics Characteristic Symbol Input current - maximum Min Typ Max Units Notes and Conditions Iin (max.) 2.45 2.6 A DC Reflected ripple current Iin (ripple) 9 25 mA RMS mA pk-pk Input Capacitor ripple current Iin (cap) 125 350 mA RMS mA pk-pk Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom), measured at converter Iout = Iout (max), measured with standard filter. See Application Note 119 Iout = Iout (max), measured without standard filter. See Application Note 119 Input capacitance Internal Cinput Input capacitance External bypass Cbypass 6 7.5 13.5 33 F Internal to converter F Recommended customer added capacitance EXB250-48S1V2J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 1.179 1.200 1.221 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 1.164 1.236 V DC For all line, static load and temperature until end of life. Line regulation 0.01 0.2 % Iout = Iout (nom), Vin (min) to Vin (max) Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 60 A DC 77 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 65 Load transient response peak deviation Vdynamic/ Vo (nom) 69 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 15,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 8 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V2J Model Protection and Control Features Characteristic Symbol Min Typ Max Units Notes and Conditions Overvoltage clamp voltage Vov 1.32 1.44 1.56 V DC Non-latching. See Application Note 119 for details Overcurrent limit inception Ioc 69 77 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 119 for details of trim equations and trim curves Output voltage trim range 90 Open sense voltage 1.15 1.20 1.30 V DC Max Units Notes and Conditions EXB250-48S1V2J Model Efficiency Characteristic Symbol Min Typ Efficiency h 82.5 84.0 % Iout = 100% lout (max), Vin = Vin (nom) Efficiency h 84.0 85.2 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 9 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V5J Model Input Characteristics Characteristic Symbol Input current - maximum Min Typ Max Units Notes and Conditions Iin (max.) 3.2 3.4 A DC Reflected ripple current Iin (ripple) 9 25 mA RMS mA pk-pk Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom), measured at converter Iout = Iout (max), measured with standard filter. See Application Note 119 Input Capacitor ripple current Iin (cap) 125 350 mA RMS mA pk-pk Iout = Iout (max), measured without standard filter. See Application Note 119 Input capacitance Internal Cinput F Internal to converter Input capacitance External bypass Cbypass F Recommended customer added capacitance 6 7.5 13.5 33 EXB250-48S1V5J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 1.476 1.50 1.524 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 1.455 1.545 V DC For all line, static load and temperature until end of life. Iout = Iout (nom), Vin (min) to Vin (max) Line regulation 0.01 0.2 % Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 60 A DC 77 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 65 Load transient response peak deviation Vdynamic/ Vo (nom) 69 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 15,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 10 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V5J Model Protection and Control Features Characteristic Symbol Min Overvoltage clamp voltage Vov 1.66 Overcurrent limit inception Ioc Typ 69 Output voltage trim range Max Units Notes and Conditions 1.95 V DC Non-latching. See Application Note 119 for details 77 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 119 for details of trim equations and trim curves 90 Open sense voltage 1.45 1.53 1.59 V DC Max Units Notes and Conditions EXB250-48S1V5J Model Efficiency Characteristic Symbol Min Typ Efficiency h 84.5 85.5 % Iout = 100% lout (max), Vin = Vin (nom) Efficiency h 85.5 86.5 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 11 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V8J Model Input Characteristics Characteristic Symbol Input current - maximum Min Typ Max Units Notes and Conditions Iin (max.) 3.8 3.9 A DC Reflected ripple current Iin (ripple) 6 25 mA RMS mA pk-pk Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom), measured at converter Iout = Iout (max), measured with standard filter. See Application Note 119 Input Capacitor ripple current Iin (cap) 90 225 mA RMS mA pk-pk Iout = Iout (max), measured without standard filter. See Application Note 119 Input capacitance Internal Cinput F Internal to converter Input capacitance External bypass Cbypass F Recommended customer added capacitance 4.8 6.0 10.8 33 EXB250-48S1V8J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 1.77 1.80 1.83 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 1.74 1.85 V DC For all line, static load and temperature until end of life. Iout = Iout (nom), Vin (min) to Vin (max) Line regulation 0.01 0.1 % Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 60 A DC 77 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 65 Load transient response peak deviation Vdynamic/ Vo (nom) 69 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 15,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 12 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V8J Model Protection and Control Features Characteristic Symbol Min Overvoltage clamp voltage Vov 2.0 Overcurrent limit inception Ioc Typ 69 Output voltage trim range Max Units Notes and Conditions 2.34 V DC Non-latching. See Application Note 119 for details 77 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 119 for details of trim equations and trim curves 90 Open sense voltage 1.75 1.83 1.89 V DC Max Units Notes and Conditions EXB250-48S1V8J Model Efficiency Characteristic Symbol Min Typ Efficiency h 85.5 87 % Iout = 100% lout (max), Vin = Vin (nom) Efficiency h 86.5 88 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 13 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S2V5J Model Input Characteristics Characteristic Symbol Input current - maximum Reflected ripple current Input Capacitor ripple current Typ Max Units Notes and Conditions Iin (max.) 5.4 5.5 A DC Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom) (measured at converter) Iin (ripple) 9 25 mA RMS mA pk-pk Iin (cap) 89 250 mA RMS mA pk-pk Iout = Iout (max), measured with standard filter. See Application Note 119 Iout = Iout (max), measured without standard filter. See Application Note 119 Input capacitance Internal Cinput Input capacitance External bypass Cbypass Min 6.0 7.5 13.5 33 F Internal to converter F Recommended customer added capacitance EXB250-48S2V5J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 2.46 2.50 2.54 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 2.42 2.58 V DC For all line, static load and temperature until end of life. Line regulation 0.01 0.1 % Iout = Iout (nom), Vin (min) to Vin (max) Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 60 A DC 77 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 65 Load transient response peak deviation Vdynamic/ Vo (nom) 69 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 15,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 14 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S2V5J Model Protection and Control Features Characteristic Symbol Min Overvoltage clamp voltage Vov 2.78 Overcurrent limit inception Ioc Typ 69 Output voltage trim range Max Units Notes and Conditions 3.125 V DC Non-latching. See Application Note 119 for details 77 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 119 for details of trim equations and trim curves 90 Open sense voltage 2.46 2.54 2.62 V DC Max Units Notes and Conditions EXB250-48S2V5J Model Efficiency Characteristic Symbol Min Typ Efficiency h 87 88 % Iout = 100% Iout (max), Vin = Vin (nom) Efficiency h 89 90 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 15 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S3V3J Model Input Characteristics Characteristic Symbol Input current - maximum Min Typ Max Units Notes and Conditions Iin (max.) 5.6 5.7 A DC Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom) (measured at converter) Reflected ripple current Iin (ripple) 9 25 mA RMS mA pk-pk Iout = Iout (max), measured with standard filter. See Application Note 119 Input Capacitor ripple current Iin (cap) 125 350 mA RMS mA pk-pk Iout = Iout (max), measured without external Pi filter. See Application Note 119 Input capacitance Internal Cinput F Internal to converter filter Input capacitance External bypass Cbypass F Recommended customer added capacitance 6.0 7.5 13.5 33 EXB250-48S3V3J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 3.25 3.30 3.35 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 3.20 3.40 V DC For all line, static load and temperature until end of life. Iout = Iout (nom), Vin (min) to Vin (max) Line regulation 0.01 0.1 % Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 50 A DC 68 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 55 Load transient response peak deviation Vdynamic/ Vo (nom) 59 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 15,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 16 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S3V3J Model Protection and Control Features Characteristic Symbol Min Overvoltage clamp voltage Vov 3.65 Overcurrent limit inception Ioc Typ 58 Output voltage trim range Max Units Notes and Conditions 4.125 V DC Non-latching. See Application Note for details 68 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 118 for details of trim equations and trim curves 90 Open sense voltage 3.15 3.34 3.45 V DC Max Units Notes and Conditions EXB250-48S3V3J Model Efficiency Characteristic Symbol Min Typ Efficiency h 89 90 % Iout = 100% Iout (max), Vin = Vin (nom) Efficiency h 89.5 90.5 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 17 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S05J Model Input Characteristics Characteristic Symbol Input current - maximum Min Typ Max Units Notes and Conditions Iin (max.) 5.6 5.7 A DC Reflected ripple current Iin (ripple) 9 25 mA RMS mA pk-pk Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom), measured at converter Iout = Iout (max), measured with standard filter. See Application Note 119 Input Capacitor ripple current Iin (cap) 125 350 mA RMS mA pk-pk Iout = Iout (max), measured without standard filter. See Application Note 119 Input capacitance Internal Cinput F Internal to converter Input capacitance External bypass Cbypass F Recommended customer added capacitance 6 7.5 13.5 33 EXB250-48S05J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 4.92 5.00 5.08 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 4.85 5.15 V DC For all line, static load and temperature until end of life. Iout = Iout (nom), Vin (min) to Vin (max) Line regulation 0.01 0.1 % Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 33 A DC 43.5 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 35 Load transient response peak deviation Vdynamic/ Vo (nom) 37.7 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 5,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 18 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S05J Model Protection and Control Features Characteristic Symbol Min Typ Max Units Notes and Conditions Overvoltage clamp voltage Vov 5.5 6.0 6.5 V DC Non-latching. See Application Note 119 for details Overcurrent limit inception Ioc 35 43.5 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 119 for details of trim equations and trim curves Output voltage trim range 90 Open sense voltage 4.85 5.00 5.25 V DC Max Units Notes and Conditions EXB250-48S05J Model Efficiency Characteristic Symbol Min Typ Efficiency h 90.5 91.7 % Iout = 100% lout (max), Vin = Vin (nom) Efficiency h 91.0 92 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 19 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S12J Model Input Characteristics Characteristic Symbol Input current - maximum Min Typ Max Units Notes and Conditions Iin (max.) 5.6 5.7 A DC Reflected ripple current Iin (refl) 9 25 mA RMS mA pk-pk Vin = Vin (min); Iout = Iout (max); Vo = Vo (nom), measured at converter Iout = Iout (max), measured with standard filter. See Application Note 119 Input Capacitor ripple current Iin (ripple) 125 350 mA RMS mA pk-pk Iout = Iout (max), measured without standard filter. See Application Note 119 Input capacitance Internal Cinput F Internal to converter Input capacitance External bypass Cbypass F Recommended customer added capacitance 6 7.5 13.5 33 EXB250-48S12J Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) 11.82 12.00 12.18 V DC Vin = Vin (nom); Iout = Iout (nom) Total regulation band Vo 11.64 12.36 V DC For all line, static load and temperature until end of life. Iout = Iout (nom), Vin (min) to Vin (max) Line regulation 0.01 0.1 % Load regulation 0.02 0.2 % Vin = Vin (nom), Iout (min) to Iout (max) Temperature regulation 0.002 0.02 %/C Vin = Vin (nom), Iout = Iout (max) 13.75 A DC 19 A DC Continuous, unit auto recovers from short, Vo < 100mV 6 % Peak deviation for 50% to 75% step load, di/dt = 100mA/sec, of Vo (nom) Output current continuous Iout 0 Output current - short circuit Isc 10 Load transient response peak deviation Vdynamic/ Vo (nom) 15.8 % Load transient response recovery Trecovery External load capacitance Cext Output voltage - noise Vp-p Vrms 0 150 sec Settling time to within 1% of output set point voltage for 50% to 75% load step 1,000 F Higher load capacitance values may be possible. Contact Artesyn Technologies for details 60 20 mV pk-pk mV rms Measurement bandwidth 20 MHz See Application Note 119 for test set-up Rev.10.11.07 exb250 48v series 20 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S12J Model Protection and Control Features Characteristic Symbol Min Overvoltage clamp voltage Vov 13.5 Overcurrent limit inception Ioc 15 Typ 16.6 Output voltage trim range Max Units Notes and Conditions 15.6 V DC Non-latching. See Application Note 119 for details 19 A DC Vo = 90% of Vo (nom) 110 % % Trim up (% of Vo nom) Trim down (% of Vo nom) See Application Note 119 for details of trim equations and trim curves 90 Open sense voltage 11.6 12.0 12.5 V DC Max Units Notes and Conditions EXQ125-48S12J Model Efficiency Characteristic Symbol Min Typ Efficiency h 91 92.1 % Iout = 100% lout (max), Vin = Vin (nom) Efficiency h 91 92.0 % Iout = 50% Iout (max), Vin = Vin (nom) Rev.10.11.07 exb250 48v series 21 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V2J Model 60 50 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 2 m/s (400 LFM) 40 30 20 84 EFFICIENCY (%) OUTPUT CURRENT (A) 86 70 82 80 78 10 0 76 5 15 25 35 45 55 65 75 33 85 41 50 AMBIENT AIRFLOW TEMPERATURE (C) 84.5 95 EFFICIENCY (%) EFFICIENCY (%) 105 84.0 83.5 83.0 82.5 0 20 40 60 80 85 Low Line Nom Line High Line 75 65 55 0 100 10 BASEPLATE TEMPERATURE (C) 20 30 40 50 60 OUTPUT CURRENT (A) Figure 3: Typical Efficiency vs. Baseplate Temperature Figure 4: Efficiency vs. Load 2.0 2.0 1.5 1.5 1.0 0.5 @ Min Input @ Nom Input @ Max Input Input 0.0 Output Voltage OUTPUT VOLTAGE (V) 75 Figure 2: Efficiency vs. Line 85.0 -20 67 INPUT VOLTAGE Vin(V) Figure 1: Derating Curve Output Current vs. Temperature -40 58 1.0 0.5 Low Line Nom Line High Line Signal 0.0 -0.5 -1.0 -1.5 -2.0 0 2 4 6 8 10 12 14 16 TIME (mSec) Figure 5: Turn-on Characteristic 18 20 0 2 4 6 8 10 12 14 16 18 Time (mSec) Figure 6: Control On/Off Characteristic 20 Rev.10.11.07 exb250 48v series 22 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Voltage Current 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Output Voltage (V) 1.36 1.31 1.26 1.21 1.16 1.11 1.06 1.01 0.96 0.91 0.86 1.22 1.17 1.12 1.07 1.02 0.97 0.92 0.87 0.82 0.77 0.72 2.0 Voltage Current 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Time (mSec) Time (mSec) Figure 7: Typical Transient Response 75-50% Step Load Change Figure 8: Typical Transient Response 50-75% Step Load Change 1.4 OUTPUT VOLTAGE VOLTAGE (5mV/Div) Output Voltage (V) EXB250-48S1V2J Model 1.2 1.0 Low Line Nom Line High Line 0.8 0.6 0.4 0.2 0 0 TIME (1.0 Sec/Div) Figure 9: Output Ripple and Noise Measurement 10 20 30 40 50 60 70 80 Time (mSec) Figure 10: Output Voltage vs. Output Current Rev.10.11.07 exb250 48v series 23 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V5J Model 88 60 50 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 2 m/s (400 LFM) 40 30 20 86 EFFICIENCY (%) OUTPUT CURRENT (A) 70 84 82 80 10 0 78 5 15 25 35 45 55 65 75 85 33 42 51 AMBIENT AIRFLOW TEMPERATURE (C) 86 80 EFFICIENCY (%) EFFICIENCY (%) 100 85 84 83 82 0 20 40 60 80 60 40 20 0 100 Low Line Nom Line High Line 0 10 20 BASEPLATE TEMPERATURE (C) 30 40 50 60 OUTPUT CURRENT (A) Figure 13: Typical Efficiency vs. Baseplate Temperature Figure 14: Efficiency vs. Load 2.0 1.5 1.0 0.5 @ Min Input @ Nom Input @ Max Input Input 0.0 0 2 4 6 8 10 12 14 16 TIME (mSec) Figure 15: Turn-on Characteristic 18 20 OUTPUT VOLTAGE (V) 2.0 OUTPUT VOLTAGE (V) 75 Figure 12: Efficiency vs. Line 87 -20 69 INPUT VOLTAGE Vin(V) Figure 11: Derating Curve Output Current vs. Temperature -40 60 1.5 1.0 0.5 Low Line Nom Line High Line Signal 0.0 0 1 2 3 4 5 6 7 8 9 TIME (mSec) Figure 16: Control On/Off Characteristic 10 Rev.10.11.07 exb250 48v series 24 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Voltage Current 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 OUTPUT VOLTAGE (V) 1.52 1.47 1.42 1.37 2.0 1.65 1.60 1.55 1.50 1.45 Voltage Current 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 TIME (mSec) 1.6 1.8 2.0 TIME (mSec) Figure 17: Typical Transient Response 75-50% Step Load Change Figure 18: Typical Transient Response 50-75% Step Load Change OUTPUT VOLTAGE (V) 1.6 VOLTAGE (10mV/Div) OUTPUT VOLTAGE (V) EXB250-48S1V5J Model 1.2 0.8 0.4 0 TIME (1.0 Sec/Div) Figure 19: Output Ripple and Noise Measurement 0 20 40 60 OUTPUT CURRENT (A) Figure 20: Output Voltage vs. Output Current 80 Rev.10.11.07 exb250 48v series 25 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V8J Model 89 87 60 50 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 2 m/s (400 LFM) 40 30 20 EFFICIENCY (%) OUTPUT CURRENT (A) 70 10 0 5 15 25 35 45 55 65 75 85 83 81 79 85 33 AMBIENT AIRFLOW TEMPERATURE (C) 42 Figure 21: Derating Curve Output Current vs. Temperature 58 67 75 Figure 22: Efficiency vs. Line 100 88 87 EFFICIENCY (%) EFFICIENCY (%) 50 INPUT VOLTAGE, Vin(V) 86 85 84 83 82 -40 -20 0 20 40 60 80 100 80 60 Low Line Nom Line High Line 40 20 0 0.0 BASEPLATE TEMPERATURE (C) 10.0 20.0 29.9 39.9 49.9 59.9 OUTPUT CURRENT (A) Figure 24: Efficiency vs. Load 2.0 2.0 1.5 1.5 1.0 0.5 0.0 @ Min Input @ Nom Input @ Max Input Input 0 4 8 12 TIME (msec) 16 Figure 25: Turn-on Characteristic 20 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) Figure 23: Typical Efficiency vs. Baseplate Temperature 1.0 0.5 0.0 Min Input Nom Input Max Input Input 0 2 4 6 TIME (msec) 8 Figure 26: Control On/Off Characteristic 10 Rev.10.11.07 exb250 48v series 26 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S1V8J Model 1.83 1.83 1.78 Output Load Step 0.0 0.2 0.4 0.6 0.8 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 1.88 1.0 1.78 1.73 Output Load Step 0.0 0.2 0.4 0.6 0.8 1.0 TIME (msec) Figure 27: Typical Transient Response 75-50% Step Load Change Figure 28: Typical Transient Response 50-75% Step Load Change VOLTAGE (20mV/Div) OUTPUT VOLTAGE (V) TIME (msec) 2.0 1.6 1.2 0.8 0.4 0 0 TIME (2.0 Sec/Div) Figure 29: Output Ripple and Noise Measurement 20 40 60 OUTPUT CURRENT (A) Figure 30: Output Voltage vs. Output Current 80 Rev.10.11.07 exb250 48v series 27 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S2V5J Model 91 89 60 50 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 2 m/s (400 LFM) 40 30 20 EFFICIENCY (%) OUTPUT CURRENT (A) 70 10 0 5 15 25 35 45 55 65 75 87 85 83 81 85 33 AMBIENT AIRFLOW TEMPERATURE (C) 41 50 58 67 75 INPUT VOLTAGE (V) Figure 31: Derating Curve Output Current vs. Temperature Figure 32: Efficiency vs. Line 100 EFFICIENCY (%) EFFICIENCY (%) 90 89 88 87 86 85 84 -40 -20 0 20 40 60 80 80 60 Low Line Nom Line High Line 40 20 0 100 0.0 BASEPLATE TEMPERATURE (C) 20.0 29.9 39.9 49.9 59.9 OUTPUT CURRENT (A) Figure 33: Typical Efficiency vs. Baseplate Temperature Figure 34: Efficiency vs. Load 3.0 2.0 1.0 0.0 @ Min Input @ Nom Input @ Max Input Input 0 4 8 12 TIME (msec) 16 Figure 35: Turn-on Characteristic 20 OUTPUT VOLTAGE (V) 3.0 OUTPUT VOLTAGE (V) 10.0 2.0 1.0 0.0 Min Input Nom Input Max Input Input 0 2 4 6 TIME (msec) 8 Figure 36: Control On/Off Characteristic 10 Rev.10.11.07 exb250 48v series 28 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S2V5J Model 2.55 2.50 2.30 Output Load Step 0.0 0.2 0.4 0.6 0.8 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2.70 1.0 2.45 2.35 Output Load Step 0.2 0.0 0.4 0.6 0.8 1.0 TIME (mSec) Figure 37: Typical Transient Response 75-50% Step Load Change Figure 38: Typical Transient Response 50-75% Step Load Change VOLTAGE (20mV/Div) OUTPUT VOLTAGE (V) TIME (msec) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 TIME (2.0 Sec/Div) Figure 39: Output Ripple and Noise Measurement 20 40 60 OUTPUT CURRENT (A) Figure 40: Output Voltage vs. Output Current 80 Rev.10.11.07 exb250 48v series 29 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S3V3J Model 92 90 50 40 0 m/s (0 LFM) 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 30 20 EFFICIENCY (%) OUTPUT CURRENT (A) 60 88 86 84 10 0 5 15 25 35 45 55 65 75 82 85 33 AMBIENT AIRFLOW TEMPERATURE (C) 41 50 58 67 75 INPUT VOLTAGE, Vin(V) Figure 41: Derating Curve Output Current vs. Temperature Figure 42: Efficiency vs. Line 100 EFFICIENCY (%) EFFICIENCY (%) 92 91 90 89 88 87 86 -40 -20 0 20 40 60 80 80 60 Low Line Nom Line High Line 40 20 0 100 0.0 BASEPLATE TEMPERATURE (C) 16.6 24.9 33.3 41.6 49.9 OUTPUT CURRENT (A) Figure 43: Typical Efficiency vs. Baseplate Temperature Figure 44: Efficiency vs. Load 4.0 2.0 @ Min Input @ Nom Input @ Max Input Input 0.0 0.0 4.0 8.0 12.0 16.0 TIME (msec) Figure 45: Turn-on Characteristic 20.0 OUTPUT VOLTAGE (V) 4.0 OUTPUT VOLTAGE (V) 8.3 2.0 Min Input Nom Input Max Input Input 0.0 0.0 2.0 4.0 6.0 8.0 10.0 TIME (msec) Figure 46: Control On/Off Characteristic Rev.10.11.07 exb250 48v series 30 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S3V3J Model 3.35 3.25 Output Load Step 0.0 0.2 0.4 0.6 0.8 OUTPUT VOLTAGE (V) 3.35 1.0 3.25 3.15 Output Load Step 0.2 0.0 0.4 TIME (msec) 0.6 0.8 1.0 TIME (msec) Figure 47: Typical Transient Response 75-50% Step Load Change Figure 48: Typical Transient Response 50-75% Step Load Change 3.5 VOLTAGE (40mV/Div) 3.0 Vout (V) OUTPUT VOLTAGE (V) 3.45 2.5 2.0 1.5 1.0 0.5 0 0 TIME (2.0 Sec/Div) Figure 49: Output Ripple and Noise Measurement 20 40 60 Iout (Amps) Figure 50: Output Voltage vs. Output Current 80 Rev.10.11.07 exb250 48v series 31 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S05J Model 94 30 25 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 2 m/s (400 LFM) 20 15 10 92 EFFICIENCY (%) OUTPUT CURRENT (A) 35 90 88 86 5 84 0 5 15 25 35 45 55 65 75 32 85 40 AMBIENT AIRFLOW TEMPERATURE (C) 57 66 74 INPUT VOLTAGE Vin(V) Figure 51: Derating Curve Output Current vs. Temperature Figure 52: Efficiency vs. Line 100 93.0 92.5 EFFICIENCY (%) EFFICIENCY (%) 49 92.0 91.5 91.0 90.5 80 60 Low Line Nom Line High Line 40 20 90.0 -40 -20 0 20 40 60 80 100 0 0 BASEPLATE TEMPERATURE (C) 6 11 17 27 22 33 OUTPUT CURRENT (A) Figure 53: Typical Efficiency vs. Baseplate Temperature Figure 54: Efficiency vs. Load 6.0 2.0 @ Min Input @ Nom Input @ Max Input Input 0.0 OUTPUT VOLTAGE OUTPUT VOLTAGE (V) 6.0 4.0 2.0 Low Line Nom Line High Line Signal 0.0 -2.0 -4.0 -6.0 0 4 8 12 16 TIME (msec) Figure 55: Turn-on Characteristic 20 0 2 4 6 8 10 12 14 16 18 Time (mSec) Figure 56: Control On/Off Characteristic 20 Rev.10.11.07 exb250 48v series 32 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Voltage Current 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Output Voltage (V) 5.13 5.08 5.03 4.98 4.93 4.88 4.83 4.78 4.73 4.68 4.63 5.01 4.96 4.91 4.86 4.81 4.76 4.71 4.66 4.61 4.56 4.51 2.0 Voltage Current 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 Time (mSec) 1.6 1.8 2.0 Time (mSec) Figure 58: Typical Transient Response 50-75% Step Load Change OUTPUT VOLTAGE (V) Figure 57: Typical Transient Response 75-50% Step Load Change 20mV/Div Output Voltage (V) EXB250-48S05J Model 6.0 5.0 4.0 3.0 2.0 1.0 0 10 1.0 uSec/Div Figure 59: Output Ripple and Noise Measurement 20 30 40 OUTPUT CURRENT (A) Figure 60: Output Voltage vs. Output Current 50 Rev.10.11.07 exb250 48v series 33 of 36 Technical Reference Note - EXB250 48V SERIES Single Output EXB250-48S12J Model 94 0.5 m/s (100 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 2 m/s (400 LFM) 92 EFFICIENCY (%) OUTPUT CURRENT (A) 16 14 12 10 8 6 4 2 0 90 88 86 84 32 5 15 25 35 45 55 65 75 85 AMBIENT AIRFLOW TEMPERATURE (C) 41 58 66 74 INPUT VOLTAGE Vin(V) Figure 61: Derating Curve Output Current vs. Temperature Figure 62: Efficiency vs. Line 100 93.0 92.5 EFFICIENCY (%) EFFICIENCY (%) 49 92.0 91.5 91.0 90.5 80 60 Low Line Nom Line High Line 40 20 90.0 -40 -20 0 20 40 60 80 100 0 0 BASEPLATE TEMPERATURE (C) 2 5 7 11 9 14 OUTPUT CURRENT (A) Figure 63: Typical Efficiency vs. Baseplate Temperature Figure 64: Efficiency vs. Load 12.0 2.0 @ Min Input @ Nom Input @ Max Input Input Output Voltage OUTPUT VOLTAGE (V) 12.0 7.0 7.0 Low Line Nom Line High Line Signal 2.0 -3.0 -8.0 -13.0 0 0 10 20 30 TIME (msec) 40 Figure 65: Turn-on Characteristic 5 10 15 20 25 30 35 40 45 50 Time (mSec) Figure 66: Control On/Off Characteristic 50 Rev.10.11.07 exb250 48v series 34 of 36 Technical Reference Note - EXB250 48V SERIES Single Output Voltage Current 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Output Voltage (V) 12.42 12.32 12.22 12.12 12.02 11.92 11.82 11.72 11.62 11.52 11.42 12.12 12.02 11.92 11.82 11.72 11.62 11.52 11.42 11.32 11.22 11.12 Voltage Current 0 5.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Time (mSec) Figure 67: Typical Transient Response 75-50% Step Load Change Figure 68: Typical Transient Response 50-75% Step Load Change OUTPUT VOLTAGE (V) Time (mSec) 10mV/Div Output Voltage (V) EXB250-48S12J Model 12.0 10.0 8.0 6.0 4.0 2.0 0 0 1.0 uSec/Div Figure 69: Typical Output Ripple and Noise Measurement 5 10 15 OUTPUT CURRENT (A) Figure 70: Current Limit Characteristic 20 Rev.10.11.07 exb250 48v series 35 of 36 Technical Reference Note - EXB250 48V SERIES Single Output O0.040 (7 PLS) O0.080 (2 PLS) 4 5 3 6 1 9 Bottom 7 View 8 2 0.500 [12.70] 1.700 [43.18] 1.300 [33.02] 1.000 [25.40] 0.700 [17.78] 0.300 [7.62] 0.000 [0.00] *0.21 [5.33] M3x0.5 Threaded Through (4 PLS) 2.280 [57.91] 2.000 [50.80] 0.200 [5.08] 0.190 [4.83] Top View 2.400 [60.96] *Standard available pin length. 0.145 (3.68) and 0.110 (2.79) options also available. (See Notes 3 and 4 for ordering details). ALL DIMENSIONS IN INCHES [mm] 1.900 [48.26] O0.128 [O3.25] (4 PLS) O0.094 [O2.39] (2 PLS) 0.000 [0.00] 0.300 [7.62] 1 9 0.700 [17.78] 2 1.300 [33.02] 1.700 [43.18] 3 8 7 6 4 5 O0.054 [O1.37] (7 PLS) 1.000 [25.40] Recommended Hole Pattern Pin Connections Pin No. Function 1 2 3 4 5 6 7 8 9 + Vin Remote ON/OFF No Function - Vin - Vout - Sense Trim + Sense + Vout Figure 71: Dimensions and Pinout EXB250 48V SERIES Embedded Power for Business-Critical Continuity Single Output Rev.10.11.07 exb250 48v series 36 of 36 Notes 1 The control pin is referenced to Vin-. 2 Active low Remote ON/OFF is available. Standard product is active high. When ordering active low parts, designate with the Suffix '-R' e.g. EXB250-48S1V2J-RJ. See Application Note 119 for detailed information regarding ON/OFF control control implementation. 3 When ordering 0.145" pin lengths designate with the Suffix'-N', if the product is already a '-R' suffix product then the suffix will be '-RNJ'. 4 When ordering 0.110" pin lengths designate with the Suffix'-K', if the product is already a '-R' suffix product then the suffix will be '-RKJ. Americas 5810 Van Allen Way Carlsbad, CA 92008 USA Telephone: +1 760 930 4600 Facsimile: +1 760 930 0698 Europe (UK) Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX United Kingdom Telephone: +44 (0) 1384 842 211 Facsimile: +44 (0) 1384 843 355 Asia (HK) CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is accessible only to trained personnel. The user must provide the recommended fusing in order to comply with safety approvals. 16th - 17th Floors, Lu Plaza 2 Wing Yip Street, Kwun Tong Kowloon, Hong Kong Telephone: +852 2176 3333 Facsimile: +852 2176 3888 For global contact, visit: www.powerconversion.com technicalsupport@powerconversion.com While every precaution has been taken to ensure accuracy and completeness in this literature, Emerson Network Power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Emerson Network Power. The global leader in enabling business-critical continuity. AC Power Connectivity DC Power Embedded Power Inbound Power Integrated Cabinet Solutions Outside Plant Precision Cooling Site Monitoring and Services EmersonNetworkPower. com Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. (c)2007 Emerson Electric Co.