75 WATT HE TRIPLE SERIES DC/DC CONVERTERS Features Description The Standard Triple HE DC/DC converter provides three regulated low voltage DC outputs at high efficiency and low cost. The unit has feedback from the +5 Vdc output. The auxiliary outputs are cross regulated to the main feedback loop (reference the block diagram). The Standard Triple HE meets rigorous requirements in an industry standard case size and is well suited for most telecommunication applications. Small size 2.4" x 2.28" x 0.53" half-brick package Excellent Thermal Performance with metal baseplate High Efficiency Volt-seconds clamp and fast over voltage clamp Pulse-by-pulse current limiting, short circuit frequency foldback Over-temperature protection Auto-softstart Low Noise Constant frequency for normal operation 2:1 Input Voltage Range Positive logic primary remote ON/OFF Negative logic primary shutdown as an option Very low temperature coefficient Water Washable Trimmable output voltage Low Cost 5 Year Warranty Available in both RoHS and Non-RoHS construction. See ordering info below model selection chart. Selection Chart Model The Standard Triple HE includes primary remote on/off control plus threaded-through holes to allow easy mounting or the addition of a heat sink for high temperature use. Input Range VDC Iin ADC Vout VDC Iout ADC Min Max TYP 24T5.12HE 18 36 3.63 5, 12 15, 2.0 24T5.15HE 18 36 3.60 5, 15 15, 2.0 48T5.12HE 36 75 1.80 5, 12 15, 2.0 48T5.15HE 36 75 1.79 5, 15 15, 2.0 48T5.17HE 36 75 1.78 5, 17 15, 2.0 The output currents are the maximum ratings of each of the outputs. It is up to the user to ensure that the total power output is below 75 Watts. Default ON/OFF logic is positive. Add -N to the model number to order negative ON/OFF logic. To order RoHS, add (RoHS) to part number. 75 Watt HE Triple Series Block Diagram 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO# 121004-1, 130226-2, 160405-1 75 WATT HE TRIPLE SERIES DC/DC CONVERTERS Unless otherwise stated, these specifications apply for baseplate temperature TB=232C, nominal input voltage, and rated typ load. (1) Input Parameters Model 24T5.12HE 24T5.15HE Units Voltage Range MIN TYP MAX 18 24 36 Input Overvoltage (100 ms) MAX 50 V Input Ripple Rejection (120Hz) TYP 50 dB Undervoltage Lockout Yes Input Reverse Voltage Protection Input Current No Load Typ Load V Yes TYP TYP 15 3.67 mA A Inrush Current MAX 0.5 A2s Reflected Ripple, 12H Source Impedance (3) TYP 20 mA p-p Efficiency TYP Switching Frequency TYP 85 85 Recommended Fuse % 325 kHz (2) A Input Parameters Model 48T5.12HE 48T5.15HE 48T5.17HE Units Voltage Range MIN TYP MAX 36 48 75 V Input Overvoltage (100 mSec) MAX 85 V Input Ripple Rejection (120Hz) TYP 50 dB Undervoltage Lockout Yes Input Reverse Voltage Protection Input Current No Load Typ Load Yes TYP TYP 12 1.8 mA A Inrush Current MAX 0.5 A2s Reflected Ripple, 12H Source Impedance (3) TYP 20 mA p-p Efficiency TYP 88 Switching Frequency TYP 325 kHz (2) A Recommended Fuse Notes: (1) Refer to the CALEX Application Notes for the definition of terms, measurement circuits, and other information. (2) These units are not fused and need to be fused by the user. Refer to the CALEX Application Notes for information of fusing. For inrush current, refer to the specifications above. (3) 33F capacitor connected between the two "Input" pins. Then insert current sensor in series with 12H inductor between 33F and the source. The reflected ripple current is measured over a 5 Hz to 20 MHz bandwidth. Noise should be minimized in the measurement. (4) Noise is measured per the CALEX Application Notes. Output noise is measured with a 10H tantalum capacitor in parallel with a 0.1 F ceramic capacitor connected across the output to CMN. Measurement bandwidth is 0-20MHz. (5) Optimum performance is obtained when this power supply is operated within the minimum to maximum load specifications. No damage to module will occur, when the output is operated at less than minimum load, but the output voltage may contain a low frequency component that may exceed output noise specifications. Total output power must not exceed 75W. 2401 Stanwell Drive, Concord Ca. 94520 (6) (7) (8) (9) 89 % Load Transient Recovery Time is defined as the time for the output to settle from a 50% to 75% or 25% step load change to a 1% error band (rise time of step = 2s). Load Transient Overshoot is defined as the peak overshoot during a transient as defined in the Note 6 above. Load regulation is defined as the output voltage change when simultaneously changing all outputs from typ. to min load and noting the change. The voltage is measured at the output pin. Cross regulation is defined as the change in one output (set at 70% of maximum load) when only one of the other outputs is changed for 70% of maximum to 20% of maximum load. (10) Most switches would be suitable for the logic ON/OFF control. In case there is a problem you can make the following estimations and then leave some margin. When open collector is used for logic high, "Open Circuit Voltage at ON/OFF Pin", "Output Resistance" and "External Leakage Current Allowed for Logic High" are used to estimate the high impedance requirement of open collector. When switch is used for logic low, "Open Circuit Voltage at ON/ OFF Pin", "Output Resistance" and "LOW Logic Level" are used to estimate the low impedance requirement of the switch. Continued on page 4. Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO# 121004-1, 130226-2, 160405-1 75 WATT HE TRIPLE SERIES DC/DC CONVERTERS Unless otherwise stated, these specifications apply for baseplate temperature TB=232C, nominal input voltage, and rated typ load. (1) Output Parameters (VO1) Model 24T5.12HE 24T5.15HE 48T5.12HE 48T5.15HE 48T5.17HE Output Voltage Units 5 V Output Voltage Setpoint Accuracy @ Typ Load MAX 1 % Turn On Overshoot Min-Max Load TYP 0 % Temperature Coefficient TYP MAX 0.003 0.01 %/C Noise and Ripple RMS (4) TYP TYP 100 50 mV p-p mV rms Load Current (5) (12) MIN TYP MAX 1.5 10 15 A Load Transient Overshoot (7) TYP 4 % Load Transient Recovery Time (6) TYP 200 s Load Regulation (5) Min-Typ Load TYP MAX 1 1.2 % Line Regulation Vin = Min-Max TYP MAX 0.01 0.1 % Overvoltage Protection (OVP) Threshhold OVP Type - Non-latching Open Loop Overvoltage Clamp TYP 130 % Output Current Limit Vout = 90% of Vout-nom TYP 120 % Output Short Circuit Current Vout = 0.25V MAX 175 % Output Parameters (VO2, VO3) Model 24T5.12HE Output Voltage 48T5.12HE 24T5.15HE 12 Output Voltage Setpoint Accuracy @ Typ Load MAX Turn On Overshoot Min-Max Load 48T5.15HE 15 48T5.17HE Units 17 V 5.5 % TYP 0 % Temperature Coefficient TYP MAX 0.02 0.05 %/C Noise and Ripple RMS (4) TYP TYP Load Current (5) (12) MIN TYP MAX Load Transient Overshoot (7) TYP 4 % Load Regulation (5) Min-Typ Load TYP MAX 3.5 5 % Line Regulation Vin = Min-Max TYP MAX 0.5 1 % Cross Regulation (9) TYP 4 % Absolute Regulation TYP 8 % Yes (Volt-Seconds Clamp) % 150 100 150 100 0.2 1.041 2.0 200 150 0.2 0.833 2.0 Output Voltage Protection Open Loop Overvoltage Clamp 2401 Stanwell Drive, Concord Ca. 94520 200 150 Ph: 925-687-4411 Fax: 925-687-3333 200 150 mV p-p mV rms 0.2 0.735 2.0 A www.calex.com Email: sales@calex.com ECO# 121004-1, 130226-2, 160405-1 75 WATT HE TRIPLE SERIES DC/DC CONVERTERS (11) Thermal impedance is tested with the converter mounted vertically and facing another printed circuit board 1/2 inch away. If converter is mounted horizontally with no obstruction, thermal impedance is approximately 7C/W. (12) Minimum load is defined as 10% of maximum load. Calex Mfg. Co. Inc. does not guarantee performance for loads less than the minimum. Loads less than the minimum shall not damage the unit. (13) The unit can be configured with negative logic for Remote ON/ OFF. (14) When an external On/Off switch is used, such as open collector switch, logic high requires the switch to be high-impedance. Switch leakage currents greater than 10A may be sufficient to trigger the ON/OFF to the logic-low state. (15) When using the trim function, the user should remember that all three voltages will go up or down at the same time. (16) Water Washability - Calex DC/DC converters are designed to withstand most solder/wash processes. Careful attention should be used when assessing the applicability in your specific manufacturing process. Converters are not hermetically sealed. (17) Torque fasteners into threaded mounting inserts at 12 in. oz. or less. Greater torque may result in damage to unit and void the warranty. (18) RoHS Compliance: See Calex Website www.calex.com/RoHS.html for the complete RoHS Compliance statement. The RoHS marking is as follows. General Specifications All Models Units Primary Remote ON/OFF Function HIGH Logic Level for ON MIN 3.0 VDC External Leakage Current Allowed for Logic High (14) MAX 10 A Input Diode Protection Voltage MAX 50 VDC MAX 1.0 VDC Sinking Current for Primary Logic Level MAX 500 A Open Circuit Voltage at ON/OFF Pin (10) Positive Logic Negative Logic TYP TYP 2.3 1.5 VDC VDC Output Resistance (10) TYP 3 k Idle Current (Module is OFF) TYP 2 mADC Turn-on Time to 1% error TYP 20 ms LOW Logic Level or ON/OFF Pin to -INPUT Tie Remote ON/OFF Logic (13) HIGH - Module ON LOW - Module OFF Output Voltage Trim Trim Range MIN MAX 10 % of Vout Input Resistance TYP 10 k Open Circuit Voltage TYP 2.5 V MAX 110 % of Vout MIN MIN 700 1544 VDC VDC Trim Limit Maximum Output Voltage Isolation Input to Output Isolation 10A Leakage Vnom = 24V Vnom = 48V Input to Output Resistance MIN 10 M Input to Output Capacitance TYP 1800 pF Environmental Calculated MTBF, Bellcore Method 1, Case 1 >1,000,000 h Baseplate Operating Temperature Range MIN MAX -40 100 C Storage Temperature MIN MAX -40 120 C Thermal Impedance (11) TYP 7 C/W Thermal Shutdown Baseplate Temperature (Auto Restart) TYP 110 C TOLERANCE: ALL DIMENSIONS ARE TYPICAL IN INCHES UNLESS OTHERWISE NOTED: X.XX 0.020 X.XXX 0.005 General Unit Weight TYP Case Dimension Torque on Mounting Inserts Agency Approvals 4.6/114 oz/g 2.4" x 2.28" x 0.53" MAX 12 in. oz. Designed to Meet UL60950 Chassis Mounting Kit 2401 Stanwell Drive, Concord Ca. 94520 MS25 Ph: 925-687-4411 Pin Function Pin Function 1 Primary ON/OFF 7 TRIM 2 -V IN 8 + V1 3 + VIN 9 - V1 4 CASE 10 N/U 5 - V2 11 + V3 6 + V2 12 - V3 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO# 121004-1, 130226-2, 160405-1