15W DC/DC CONVERTER beta dyne 3:1 Input Single/Dual/Triple/Dual Positive Output Key Features * * * * * * * * * 3:1 input voltage range Efficiency up to 88% Input to output isolation Soft start Short circuit protection 150A off-state current Multiple converter synchronization Dual isolated output Output O.V.P. protection 1 2 beta dyne 9 DC/DC CONVERTER 8 3 15D3.3-5/48 7 4 MADE IN USA 6 5 Functional Description The 15W series is a family of single, dual and triple DC/DC converters. It offers 3:1 input voltage range, 400kHz switching frequency, forward topology and is packaged in a 1"x2"x0.395" case with an industry standard pin out arrangement. Synchronous rectification improves the efficiency in the single models while the dual isolated output in the dual models offers design flexibility. Sixsided shielding, SMD and improved thermal techniques guarantee reliability. +V IN -V IN 4 RECTIFIER & FILTER MAIN 3 SYNC 2 ON/OFF 1 5 +V OUT MAIN 8 -V OUT MAIN 7 +V OUT AUX 9 -V OUT AUX PWM & SWITCHING TRANSISTOR RECTIFIER & FILTER AUX OPTO ISOLATOR ERROR AM REF Typical Block Diagram (Triple Output) Beta Dyne, Inc. * 110 Elm St, Unit 12 * Bridgewater, MA 02324 * Phone 508-697-1993 * Fax 508-697-2045 * www.beta-dyne.com 15W DC/DC CONVERTER DCDC15_DS_REV03.PDF SHEET 1 OF 6 Electrical Specifications Unless otherwise specified, all parameters are given under typical +25C with nominal input voltage and under full output load conditions. INPUT SPECIFICATIONS PARAMETER Input Voltage Range CONDITION / NOTE MIN TYP MAX UNIT See Model Selection Guide Input Startup Voltage, 24VIN 7 V dc Input Startup Voltage, 48VIN 12 V dc Undervoltage Shutdown 24VIN = 6Vdc, 48VIN = 11Vdc Input Filter LC Reverse Polarity External series-blocking diode No Load Input Current See Model Selection Guide 8 Input Surge Current (20S Spike) V dc 10 A Short Circuit Current Limit 150 % IIN Off State Current 150 A Remote ON/OFF Control Supply ON Pin 1 Open (Open circuit voltage: 12V Max.) Supply OFF 0 Logic Input Reference -Input for ON/OFF and SYNC Logic Compatibility TTL Open Colllector or CMOS Open Drain 0.8 V dc MAX UNIT OUTPUT SPECIFICATIONS PARAMETER Voltage and Current Ratings CONDITION / NOTE MIN TYP See Model Selection Guide Output Voltage Accuracy Output Voltage Accuracy, Single and Dual 1 % Output Voltage Accuracy, Triple (Main) 1 % Output Voltage Accuracy, Triple (Auxiliary) Output Voltage Adjustment 3 Single and Dual only 5 5 % % Voltage Balance, Dual Balanced loads 2 % Voltage Balance, Triple (Auxiliary) Balanced loads for auxiliary 2 % 2 %VPP of VOUT Minimum Load 0% for Single output, 10% for all other models Ripple & Noise (See App. Note DC-003) % of F L 1 Line Regulation, Single Minimum VIN to maximum VIN 0.5 1 % Line Regulation, Dual and Triple (Main) Minimum VIN to maximum VIN 1 2 % 5 % Line Regulation, Triple (Main) With balanced loads 5 Load Regulation, Single NL to FL 1 % Load Regulation, Dual See Figure 5 for isolated output; See Note 1 1 % Load Regulation, Triple (Main) Main fully loaded 1 % Load Regulation, Triple (Auxiliary) See Figure 6 Temperature Coefficient @ FL Transient Response Time 50% FL to FL to 50% FL Short Circuit Protection All outputs, by input current limiting 5 % 0.02 %/C 100 150 S Turn-on Delay with Soft Start 2 Output Overvoltage Protection 130 150 % of VOUT mS TYP MAX UNIT GENERAL SPECIFICATIONS PARAMETER Efficiency (at full power) CONDITION / NOTE MIN See Model Selection Guide Isolation Voltage (1 min.), Input to Output All models 1500 V dc Isolation Voltage, Output to Output Dual only 500 V dc Isolation Resistance 109 Isolation Capacitance 500 pF Switching Frequency 400 kHz Beta Dyne, Inc. * 110 Elm St, Unit 12 * Bridgewater, MA 02324 * Phone 508-697-1993 * Fax 508-697-2045 * www.beta-dyne.com 15W DC/DC CONVERTER DCDC15_DS_REV03.PDF SHEET 2 OF 6 ENVIRONMENTAL SPECIFICATIONS PARAMETER CONDITION / NOTE Operating Temperature, Industrial (Ambient)2 MIN See Figure 1 TYP MAX UNIT +71 C -40 Operating Temperature, Extended -55 +85 C Storage Temperature Range -55 +125 C Thermal Resistance 7.4 C/WDISS Maximum Operating Case Temperature 100 C Derating See Figure 1 Humidity Up to 95% non-condensing Cooling Free-air convection EMI/RFI Six-sided continuous shielded metal case MTBF per MIL-HNBK-217F (Ground benign, +25C) 1.1x106 hours PHYSICAL CHARACTERISTICS PARAMETER CONDITION / NOTE Case Size MIN TYP MAX UNIT 1x2x0.395in. (25.4x50.8x10.03mm) Case Material Blue coated metal Weight 1.06oz. (30.3g) Shielding Connection, 24VIN -Input Ground (Pin 3) Shielding Connection, 48VIN +Input (Pin 4) NOTES 1. Maximum output current must not exceed 2 amps at either output. EXTERNAL SYNCHRONIZATION Our 15W DC/DC converters can be synchronized to an external TTL or CMOS clock signal. Insert a 470pf to 1000pF ceramic capacitor between the driving clock signal and the SYNC pin (Pin 2) of the convertor. The frequency of the signal must be between 390kHz and 430kHz, with a duty cycle of 50% and an amplitude between 3Vdc minimum and 5Vdc typical. See Application Note DC-005: Synchronization. EXTERNAL TRIMMING OF OUTPUT VOLTAGES (SINGLE AND DUAL ONLY) To trim the output voltage DOWN, connect a 5% 1/4W resistor between the + (plus) output and trim pin of the converter. To trim the output voltage UP, connect a 5% 1/4W resistor between the - (minus) output and trim pins of the converter. For UP/DOWN trimming capability, connect a 10kW potentiometer between the + and - output pins, with the wiper arm connected to the trim pin. The trim resistors/potentiometer can be connected at the converter output pins or the load. However, if connected at the load, the resistance of the runs becomes part of the feedback network which improves load regulation. If the load is some distance from the converter, the use of #20 gauge wire is recommended to avoid excessive voltage drop due to the resistance of the circuit paths. See our application notes: DC-001: Testing Transient Response in DC/DC Converters DC-004: Thermal Consideration for DC/DC Converters FREE AIR TABLE 1. Minimum input operating voltage range for 24VIN and 48VIN models 15W SINGLE % FL Minimum Input Operating Voltage 24VIN 48VIN 10 7.0 14.0 25 8.5 17.0 50 8.8 18.0 75 9.0 18.5 100 9.5 19.5 PO FORCED AIR APPROX. 100LFM 16 15 14 13 12 11 10 9 8 7 W PD = .6 C T W PD = .375 T C 50 60 70 80 90 100 110 C FIGURE 1. Worst case derating of 15W series Beta Dyne, Inc. * 110 Elm St, Unit 12 * Bridgewater, MA 02324 * Phone 508-697-1993 * Fax 508-697-2045 * www.beta-dyne.com 15W DC/DC CONVERTER DCDC15_DS_REV03.PDF SHEET 3 OF 6 Model Selection Guide MODEL NUMBER INPUT Voltage (Vdc) OUTPUT Current (mA) Nominal R an g e N o L o ad Full Load Reflected Ripple* (mAPP) Voltage (Vdc) Current (mA) Efficiency Full Load (%) 15S1.8/24 24 10-30 20 500 100 1.8 5000 75 15S2.5/24 24 10-30 20 660 120 2.5 5000 79 15S3.3/24 24 10-30 20 764 120 3.3 4500 81 15S5/24 24 10-30 20 760 120 5 3000 82 15S12/24 24 10-30 10 770 120 12 1250 81 15S15/24 24 10-30 10 775 120 15 1000 80 15S1.8/48 48 20-60 20 237 90 1.8 5000 79 15S2.5/48 48 20-60 20 320 100 2.5 5000 81 15S3.3/48 48 20-60 20 410 100 3.3 5000 84 15S5/48 48 20-60 20 360 100 5 3000 87 15S12/48 48 20-60 10 380 100 12 1250 82 15S15/48 48 20-60 10 380 100 15 1000 82 15D5/24 24 10-30 20 780 120 +5/-5 1500 80 15D12/24 24 10-30 20 780 120 +12/-12 625 80 15D15/24 24 10-30 20 780 120 +15/-15 500 80 15D2.5-3.3/24-I 24 10-30 20 620 120 2.5/3.3 2000/2000 78 15D2.5-5/24-I 24 10-30 20 790 120 2.5/5 2000/2000 79 15D3.3-5/24-I 24 10-30 20 770 120 3.3/5 2000/1500 79 15D5/48 48 20-60 30 376 90 +5/-5 1500 83 15D12/48 48 20-60 30 367 90 +12/-12 625 85 15D15/48 48 20-60 30 367 90 +15/-15 500 85 15D2.5-3.3/48-I 48 20-60 10 300 90 2.5/3.3 2000/2000 81 15D2.5-5/48-I 48 20-60 10 385 90 2.5/5 2000/2000 80 15D3.3-5/48-I 48 20-60 10 360 90 3.3/5 2000/1500 82 15T3.3-5/24 24 10-30 10 743 120 3.3/5 2000/750 79 15T5-12/24 24 10-30 10 781 120 5/12 1500/312 80 15T5-15/24 24 10-30 10 781 120 5/15 1500/250 80 15T3.3-5/48 48 20-60 20 365 90 3.3/5 2000/750 82 15T5-12/48 48 20-60 10 370 90 5/12 1500/312 85 15T5-15/48 48 20-60 10 373 90 5/15 1500/250 84 Please contact Beta Dyne for different input voltage range and output voltage combinations * Measured with 10F capacitor at the input power pins ORDERING GUIDE I 15 _ ___/___-_ Power Number of Outputs (S = Single, D = Dual, T = Triple) Insert an I for dual independent outputs Input Voltage Output Voltage Beta Dyne, Inc. * 110 Elm St, Unit 12 * Bridgewater, MA 02324 * Phone 508-697-1993 * Fax 508-697-2045 * www.beta-dyne.com 15W DC/DC CONVERTER DCDC15_DS_REV03.PDF SHEET 4 OF 6 3.3 H @ 3A + F1 15W SINGLE SERIES 10F 100V VIN 4 +V IN 3 500S 5 -V OUT 6 -V IN 2 1000F +V OUT 1 7 V ADJ SYNC + 100F TO 1000F ** 10K 0.1 F 50V ON/OFF V OUT (MAIN) - 2.5S (BOTTOM VIEW) 1000F 500V ** OFF 1000F 500V ** ** 1000F 500V ON TYPICAL CONNECTION DIAGRAM OF A 15W SINGLE CONVERTER ** OPTIONAL PARTS FIGURE 2. Single converter 3.3 H @ 3A + F1 + 15W DUAL SERIES 10F 100V V IN 4 - -V IN 2 1000F 500S V ADJ +V IN 3 SYNC 1 1000F 500V OFF GND 6 +V OUT 7 GND 8 -V OUT 9 ON/OFF 2.5S ** 5 10K 100F 35V ** 100F 35V 0.1 F 50V + 1000F 500V ** (BOTTOM VIEW) ** 1000F 500V ** ON TYPICAL CONNECTION DIAGRAM OF A 15W DUAL CONVERTER ** OPTIONAL PARTS FIGURE 3. Dual converter 3.3 H @ 3A 100F 35V ** + F1 15W DUAL-ISOLATED OUTPUT SERIES 10F 100V V IN 4 3 - 2 1000F 500S 1 +V IN -V IN SYNC ON/OFF 2.5S 1000F 500V ** OFF 10K V ADJ 5 +V OUT1 6 +V OUT2 7 -V OUT2 8 -V OUT1 9 0.1F 50V + 100F 35V ** V OUT1 MAIN ** (BOTTOM VIEW) + V OUT2 AUX. 1000F 500V ** 1000F 500V ON TYPICAL CONNECTION DIAGRAM OF A 15W DUAL ISOLATED OUTPUTS CONVERTER ** OPTIONAL PARTS FIGURE 4. Dual isolated output converter 3.3 H @ 3A + F1 + AUX + MAIN 15W TRIPLE SERIES 10F 100V VIN 4 3 - 2 1000F 500S 1 +5V OUT +V IN N/C -V IN +V OUT AUX SYNC -V OUT ON/OFF -V OUT AUX 2.5S ** OFF 1000F 500V (BOTTOM VIEW) 5 6 ** 7 100F TO 1000F 8 V OUT - MAIN - AUX 9 ** 1000F ** 500V 1000F 500V ON TYPICAL CONNECTION DIAGRAM OF A 15W TRIPLE CONVERTER ** OPTIONAL PARTS FIGURE 5. Triple converter Beta Dyne, Inc. * 110 Elm St, Unit 12 * Bridgewater, MA 02324 * Phone 508-697-1993 * Fax 508-697-2045 * www.beta-dyne.com 15W DC/DC CONVERTER DCDC15_DS_REV03.PDF SHEET 5 OF 6 % VARIATION FROM THE NOMINAL POSITIVE AUX. OUTPUT +VAX +15 = 25% OF VO AUX. = 50% = 75% = 100% +10 +5 AUX. NOM. = 25% = 50% = 75% = 100% -5 AUX LOAD -10 % VARIATION FROM THE NOMINAL NEGATIVE AUX. OUTPUT % VARIATION OF NOMINAL AUX. VOLTAGE +VAX -15 MAIN 0V 25% 50% 75% 100% MAIN IO IN % DUAL ISOLATED OUTPUTS +8 +7 +6 +5 +4 +3 +2 +1 +AUX NOM -1 -2 -3 -4 -5 -6 FIGURE 6. Graph of typical load regulation of a dual isolated output. Variation in % of VAUX vs. Main output loading. 25% 50% 75% 100% 0V MAIN MAIN OUTPUT CURRENT IN % -6 -5 -4 -3 -2 -1 -AUX NOM +1 +2 +3 +4 +5 +6 +7 +8 -VAX FIGURE 7. Graph of typical load regulation of a triple output. Variation in % of VAUX vs. Main output loading. DIMENSIONS in inches [mm] CASE HEADER 0.395 [10.03] MAX O0.040 [1.02] (9PL) 0.10 [2.54] MIN 5 4 6 3 BOTTOM VIEW 0.800 [20.32] 7 2 8 0.300 [7.62] 1 9 0.600 [15.24] 0.400 [10.16] 1.800 [45.72] 0.200 [5.08] Function 0.500 [12.70] 2.000 [50.80] 15W SINGLE Pin 0.100 [2.54] 0.100 [2.54] 0.900 0.700 [22.86] [17.78] 15W DUAL Pin Function 15W DUAL ISOLATED Pin Function 15W TRIPLE Pin Function 1 ON/OFF 1 ON/OFF 1 ON/OFF 1 ON/OFF 2 SYNC 2 SYNC 2 SYNC 2 SYNC 3 -VIN 3 -VIN 3 -VIN 3 -VIN 4 +VIN 4 +VIN 4 +VIN 4 +VIN 5 +OUTPUT 5 V AD J 5 V AD J 5 +VOUT MAIN 6 -OUTPUT 6 GND 6 +VO1 (MAIN) 6 No Pin 7 +VADJ 7 +OUTPUT 7 +VO2 (AUX) 7 +VOUT AUX 8 No Pin 8 GND 8 -VO2 (AUX) 8 GND 9 No Pin 9 -OUTPUT 9 -VO1 (MAIN) 9 -VOUT AUX Beta Dyne, Inc. * 110 Elm St, Unit 12 * Bridgewater, MA 02324 * Phone 508-697-1993 * Fax 508-697-2045 * www.beta-dyne.com 15W DC/DC CONVERTER DCDC15_DS_REV03.PDF SHEET 6 OF 6