Maxi Family 24V Input Actual size: 4.6 x 2.2 x 0.5in [117 x 56 x 12,7mm] (R) C S US C NRTL US DC-DC Converter Module Features & Benefits Applications * DC input range: 18 - 36V * Isolated output Industrial and process control, distributed power, medical, ATE, communications, defense and aerospace. * Operation to 16V at 75% power after start up For details on proper operation please refer to the: Design Guide & Applications Manual for Maxi, Mini, Micro Family. * Input surge withstand: 50V for 100ms * DC output: 3.3 - 48V * Programmable output: 10 - 110% * Regulation: 0.25% no load to full load * Efficiency: Up to 88% * Maximum operating temp: 100C, full load * Power density: up to 99W per cubic inch * Height above board: 0.43in [10,9mm] * Parallelable, with N+M fault tolerance * Low-noise ZCS/ZVS architecture * RoHS Compliant (with F or G pin option) Product Overview Absolute Maximum Ratings Parameter Rating Unit +IN to -IN voltage -0.5 to +53 VDC PC to -IN voltage -0.5 to +7.0 VDC PR to -IN voltage -0.5 to +7.0 VDC SC to -OUT voltage -0.5 to +1.5 VDC 1.0 VDC -Sense to -OUT voltage Notes +OUT to -OUT, +Sense to -OUT See Module Output Specifications Isolation voltage IN to OUT 3000 VRMS Test voltage IN to base 1500 VRMS Test voltage Test voltage 500 VRMS These DC-DC converter modules use advanced power processing, control and packaging technologies to provide the performance, flexibility, reliability and cost effectiveness of a mature power component. Operating Temperature OUT to base -55 to +100 C Storage Temperature -65 to +125 C 500 [260] F [C] 750 [390] High-frequency ZCS/ZVS switching provides high power density with low noise and high efficiency. Mounting torque F [C] in.lbs [N.m] Pin soldering temperature 5 [0.57] M-Grade M-Grade <5sec; wave solder <7sec; hand solder 6 each Part Numbering e.g. V24A12T400BL2 Product Type V = Standard S = Enhanced efficiency (avail. 12 VOUT only) Output Voltage 3V3 = 3.3V 5 = 5V 6.5 = 6.5V 8 = 8V 12 = 12V 15 = 15V 24 = 24V 28 = 28V 36 = 36V 48 = 48V 24V Maxi Family Page 1 of 15 24A Product Grade Temperatures (C) Grade Operating Storage E = -10 to +100 -20 to +125 C = -20 to +100 -40 to +125 T = -40 to +100 -40 to +125 H = -40 to +100 -55 to +125 M = -55 to +100 -65 to +125 B VOUT 3.3V 5V 6.5V 8V 12V 15V 24V 28V 36V 48V Output Power POUT 200W, 264W 300W, 400W 400W 300W 300W, 400W, 500W 300W, 400W 300W, 400W, 500W 300W, 400W, 500W 300W, 400W 300W, 400W Rev 6.9 03/2019 Pin Style Finish Blank: Short Tin/Lead L: Long Tin/Lead S: Short ModuMate Gold N: Long ModuMate Gold F: Short RoHS Gold G: Long RoHS Gold K: Extra Long RoHS Gold Baseplate Blank: Slotted 2: Threaded 3: Through-hole 24V Input Module Family Electrical Characteristics Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature, unless otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate. Module Input Specifications Parameter Min Typ Max Unit Notes Operating input voltage 18 24 36 VDC These modules will operate at up to 75% of rated power down to 16VIN after start up at >18VIN Input surge withstand <100ms 50 VDC 17.9 VDC Undervoltage turn-on 17.5 Undervoltage turn-off 14.8 15.3 VDC Overvoltage turn-off/on 36.3 37.8 39.6 VDC 4.0 mA PC pin low Max Unit Notes 1 % Of nominal output voltage. Nominal input; full load; 25C Low line to high line; full load Disabled input current Module Output Specifications Parameter Min Typ Output voltage setpoint Line regulation 0.02 0.20 % Temperature regulation 0.002 0.005 % / C Power sharing accuracy 2 5 % Over operating temperature range 10 - 100% of full load Programming range 10 110 % Of nominal output voltage. For trimming below 90% of nominal, a minimum load of 10% of maximum rated power may be required. +OUT to -OUT, +Sense to -OUT - Absolute Maximum Ratings 3.3V -0.5 to 4.7 5V -0.5 to 7.0 6.5V -0.5 to 9.0 8V -0.5 to 10.9 12V -0.5 to 16.1 15V -0.5 to 20.0 24V -0.5 to 31.7 28V -0.5 to 36.9 36V -0.5 to 47.2 48V -0.5 to 62.9 Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC Note: The permissible load current must never be exceeded during normal, abnormal or test conditions. For additional output related application information, please refer to output connections on page 10. Thermal Resistance And Capacity Parameter Min Typ Max Unit Baseplate to sink; flat, greased surface 0.08 C/Watt Baseplate to sink; thermal pad (P/N 20263) 0.07 C/Watt Baseplate to ambient 4.9 C/Watt Baseplate to ambient; 1000LFM 1.1 C/Watt Thermal capacity 165 Watt-sec/C 24V Maxi Family Page 2 of 15 Rev 6.9 03/2019 24V Input Module Family Electrical Characteristics (Cont.) Module Control Specifications Parameter Min Typ Max Unit Notes Primary Side (PC = Primary Control; PR = Parallel) PC bias voltage current limit 5.50 1.5 5.75 2.1 6.00 3.0 VDC mA PC current = 1.0mA PC voltage = 5.5V PC module disable 2.3 2.6 2.9 VDC Switch must be able to sink 4mA. See Fig. 2 4 7 ms PC module alarm 0.5 VAVG UV, OV, OT, module fault. See Figs. 3 and 5 PC resistance 0.9 1.0 1.1 M See Fig. 3, converter off or fault mode PR emitter amplitude 5.7 5.9 6.1 Volts PR load >30, <30pF PR emitter current 150 PR receiver impedance 375 500 625 PR receiver threshold 2.4 2.5 2.6 Volts Minimum pulse width: 20ns 12 modules Without PR buffer amplifier PC module enable delay PR drive capability During normal operation mA 25C Secondary Side (SC = Secondary Control) SC bandgap voltage 1.21 1.23 1.25 VDC SC resistance 990 1000 1010 Referenced to -Sense SC capacitance0.033 F SC module alarm 0 VDC With open trim; referenced to -Sense. See Fig. 7 Unit Notes Module General Specifications Parameter Min Typ Max Remote sense (total drop) 0.5 VDC 0.25V per leg (sense leads must be connected to respective, output terminals) Isolation test voltage (IN to OUT)* 3000 VRMS Complies with reinforced insulation requirements Isolation test voltage (IN to base)* 1500 VRMS Complies with basic insulation requirements Isolation test voltage (OUT to base)* 500 VRMS Complies with operational insulation requirements Isolation resistance10M Weight (E, C, T grade) 6.5 [184.3] 7.3 [207.5] 8.1 [230.7] ounces [grams] Weight (H, M grade) 7.4 [209.3] 8.2 [232.5] 9.0 [255.7] ounces [grams] Temperature limiting 100 115 IN to OUT, IN to baseplate, OUT to baseplate C See Figs. 3 and 5. Do not operate coverter >100C. Agency approvals cURus, cTUVus, CE UL60950-1, EN60950-1, CSA60950-1, IEC60950-1. With appropriate fuse in series with the +Input * Isolation test voltage, 1 minute or less. Note: Specifications are subject to change without notice. 24V Maxi Family Page 3 of 15 Rev 6.9 03/2019 24V Input Module Specific Operating Specifications 3.3VOUT, 264W (e.g. S24A3V3C264BL, V24A3V3C264BL) Parameter Min Typ Max Efficiency S24A3V3C264BL (enhanced efficiency) 83.0 86.0 V24A3V3C264BL (standard efficiency) 80.0 81.4 Ripple and noise 75 94 Output OVP setpoint 4.14 4.3 4.46 Dissipation, standby 8 12 Load regulation 0.02 0.2 Load current 0 80 Current limit 81.6 92 108 Short circuit current 56 92 108 Unit % Notes Nominal input; 75% load; 25C mV Volts Watts % Amps Amps Amps P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV Unit Notes 3.3VOUT, 200W (e.g. S24A3V3C200BL, V24A3V3C200BL) Parameter Min Typ Max Efficiency S24A3V3C200BL (enhanced efficiency) 82.0 86.0 V24A3V3C200BL (standard efficiency) 73.9 79.9 Ripple and noise 43 54 Output OVP setpoint 4.48 4.65 4.82 Dissipation, standby 6.2 10 Load regulation 0.02 0.2 Load current 0 60.6 Current limit 61.8 69.7 81.9 Short circuit current 42.4 69.7 81.9 % Nominal input; 75% load; 25C mV Volts Watts % Amps Amps Amps P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV Unit Notes 5VOUT, 400W (e.g. S24A5C400BL, V24A5C400BL) Parameter Min Typ Max Efficiency S24A5C400BL (enhanced efficiency) 84.0 86.5 V24A5C400BL (standard efficiency) 80.0 84.5 Ripple and noise 152 190 Output OVP setpoint 6.03 6.25 6.47 Dissipation, standby 6.8 10.1 Load regulation 0.02 0.25 Load current 0 80 Current limit 81.6 92 104 Short circuit current 56 92 104 % Nominal input; 75% load; 25C mV Volts Watts % Amps Amps Amps P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV Unit Notes 5VOUT, 300W (e.g. S24A5C300BL, V24A5C300BL) Parameter Min Typ Max Efficiency S24A5C300BL (enhanced efficiency) 82.5 84.4 V24A5C300BL (standard efficiency) 82.5 84.4 Ripple and noise 120 150 Output OVP setpoint 6.03 6.25 6.47 Dissipation, standby 7.2 8.8 Load regulation 0.02 0.2 Load current 0 60 Current limit 61.2 69 81 Short circuit current 42 69 81 24V Maxi Family Page 4 of 15 Rev 6.9 03/2019 % mV Volts Watts % Amps Amps Amps Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24V Input Module Specific Operating Specifications (Cont.) 6.5VOUT, 400W (e.g. S24A6V5C400BL, V24A6V5C400BL) Parameter Min Typ Max Efficiency S24A6V5C400BL (enhanced efficiency) 85.0 86.1 V24A6V5C400BL (standard efficiency) 85.0 86.1 Ripple and noise 220 275 Output OVP setpoint 7.7 7.98 8.26 Dissipation, standby 9.2 10.5 Load regulation 0.02 0.2 Output Current 0 61.5 Current limit 62.7 70.7 83.1 Short circuit current 43 70.7 83.1 Unit % Notes Nominal input; 75% load; 25C mV P-P; Nominal input; full load; 20MHz bandwidth Volts 25C; recycle input voltage or PC to restart (>100ms off) Watts No load % No load to full load; nominal input Amps Amps Output voltage 95% of nominal Amps Output voltage <250mV 8VOUT, 300W (e.g. S24A8C300BL, V24A8C300BL) Parameter Min Typ Max Efficiency S24A8C300BL (enhanced efficiency) 85.6 86.5 V24A8C300BL (standard efficiency) 85.6 86.5 Ripple and noise 215 269 Output OVP setpoint 9.36 9.7 10.1 Dissipation, standby 8.7 13.9 Load regulation 0.02 0.2 Load current 0 37.5 Current limit 38.2 43.1 50.7 Short circuit current 26.2 43.1 50.7 Unit % Notes Nominal input; 75% load; 25C mV Volts Watts % Amps Amps Amps P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV Unit Notes 12VOUT, 500W (e.g. S24A12C500B, V24A12C500BL) Parameter Min Typ Max Efficiency S24A12C500B (enhanced efficiency) 86.7 88.2 V24A12C500BL (standard efficiency) 86.0 87.5 Ripple and noise 272 340 Output OVP setpoint 13.8 14.3 14.8 Dissipation, standby 10.8 12.0 Load regulation 0.02 0.2 Load current 0 41.67 Current limit 42.5 47.9 56.3 Short circuit current 29.2 47.9 56.3 % Nominal input; 75% load; 25C mV Volts Watts % Amps Amps Amps P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV Unit Notes 12VOUT, 400W (e.g. S24A12C400BL, V24A12C400BL) Parameter Min Typ Max Efficiency S24A12C400BL (enhanced efficiency) 86.0 89.5 V24A12C400BL (standard efficiency) 87.0 88.3 Ripple and noise 250 320 Output OVP setpoint 13.7 14.3 14.9 Dissipation, standby 6.8 10.2 Load regulation 0.02 0.2 Load current 0 33.33 Current limit 34 38.4 43.5 Short circuit current 23.3 38.4 43.5 24V Maxi Family Page 5 of 15 Rev 6.9 03/2019 % mV Volts Watts % Amps Amps Amps Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24V Input Module Specific Operating Specifications (Cont.) 12VOUT, 300W (e.g. S24A12C300BL, V24A12C300BL) Parameter Min Typ Max Efficiency S24A12C300BL (enhanced efficiency) 88.0 89.5 V24A12C300BL (standard efficiency) 87.0 88.2 Ripple and noise 196 245 Output OVP setpoint 13.7 14.3 14.9 Dissipation, standby 6.9 8.6 Load regulation 0.02 0.2 Load current 0 25 Current limit 25.5 28.8 33.8 Short circuit current 17.5 28.8 33.8 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage < 250mV 15VOUT, 400W (e.g. V24A15C400BL) Parameter Min Typ Max Efficiency 88.0 89.0 Ripple and noise 60 75 Output OVP setpoint 17.1 17.8 18.5 Dissipation, standby 6.3 9.4 Load regulation 0.02 0.2 Load current 0 26.67 Current limit 27.2 30.7 34.8 Short circuit current 18.6 30.7 37.9 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 15VOUT, 300W (e.g. V24A15C300BL) Parameter Min Typ Max Efficiency 85.0 86.2 Ripple and noise 160 200 Output OVP setpoint 17.1 17.8 18.5 Dissipation, standby 8.1 10 Load regulation 0.02 0.2 Load current 0 20 Current limit 20.4 23 27 Short circuit current 14 23 27 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24VOUT, 500W (e.g. V24A24C500BL) Parameter Min Typ Max Efficiency 87.3 88.3 Ripple and noise 172 215 Output OVP setpoint 27.1 28.1 29.1 Dissipation, standby 11.9 19.1 Load regulation 0.02 0.2 Load current 0 20.83 Current limit 21.3 24.0 28.1 Short circuit current 14.6 24.0 28.1 24V Maxi Family Page 6 of 15 Rev 6.9 03/2019 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24V Input Module Specific Operating Specifications (Cont.) 24VOUT, 400W (e.g. V24A24C400BL) Parameter Min Typ Max Efficiency 88.0 89.1 Ripple and noise 80 100 Output OVP setpoint 27.1 28.1 29.1 Dissipation, standby 11 12 Load regulation 0.02 0.2 Load current 0 16.67 Current limit 17 19.2 23.4 Short circuit current 2.25 19.2 23.4 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24VOUT, 300W (e.g. V24A24C300BL) Parameter Min Typ Max Efficiency 86.8 88.2 Ripple and noise 85 107 Output OVP setpoint 27.1 28.1 29.1 Dissipation, standby 7.8 10 Load regulation 0.02 0.2 Load current 0 12.5 Current limit 12.7 14.4 16.9 Short circuit current 8.75 14.4 16.9 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 28VOUT, 500W (e.g. V24A28C500BL) Parameter Min Typ Max Efficiency 86.0 88.0 Ripple and noise 172 215 Output OVP setpoint 31.5 32.7 33.9 Dissipation, standby 13.5 14.8 Load regulation 0.02 0.2 Load current 0 17.9 Current limit 18.3 20.6 24.2 Short circuit current 12.5 20.6 24.2 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 28VOUT, 400W (e.g. V24A28C400BL) Parameter Min Typ Max Efficiency 86.0 87.8 Ripple and noise 172 215 Output OVP setpoint 31.5 32.7 33.9 Dissipation, standby 6.3 9.5 Load regulation 0.02 0.2 Load current 0 14.29 Current limit 14.5 16.4 19.4 Short circuit current 10 16.4 19.4 24V Maxi Family Page 7 of 15 Rev 6.9 03/2019 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24V Input Module Specific Operating Specifications (Cont.) 28VOUT, 300W (e.g. V24A28C300BL) Parameter Min Typ Max Efficiency 87.0 88.0 Ripple and noise 100 125 Output OVP setpoint 31.5 32.7 33.9 Dissipation, standby 7.1 9.3 Load regulation 0.02 0.2 Load current 0 10.71 Current limit 10.9 12.3 14.5 Short circuit current 3 12.3 14.5 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 36VOUT, 400W (e.g. V24A36C400BL) Parameter Min Typ Max Efficiency 86.0 88.0 Ripple and noise 120 150 Output OVP setpoint 40.4 41.9 43.4 Dissipation, standby 10 13 Load regulation 0.02 0.2 Load current 0 11.11 Current limit 11.3 12.8 15 Short circuit current 7.77 12.8 15 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25C P-P; Nominal input; 75% load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 36VOUT, 300W (e.g. V24A36C300BL) Parameter Min Typ Max Efficiency 87.0 88.3 Ripple and noise 80 100 Output OVP setpoint 40.4 41.9 43.4 Dissipation, standby 9.8 12 Load regulation 0.02 0.2 Load current 0 8.33 Current limit 8.49 9.58 11.3 Short circuit current 5.83 9.58 11.3 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25C P-P; Nominal input; 75% load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 48VOUT, 400W (e.g. V24A48C400BL) Parameter Min Typ Max Efficiency 84.7 86.7 Ripple and noise 160 200 Output OVP setpoint 53.8 55.8 57.8 Dissipation, standby 11.8 12.7 Load regulation 0.02 0.2 Load current 0 8.33 Current limit 8.49 9.58 11.3 Short circuit current 4.79 9.58 11.3 24V Maxi Family Page 8 of 15 Rev 6.9 03/2019 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24V Input Module Specific Operating Specifications (Cont.) 48VOUT, 300W (e.g. V24A48C300BL) Parameter Min Typ Max Efficiency 86.0 87.1 Ripple and noise 180 225 Output OVP setpoint 53.7 55.7 57.7 Dissipation, standby 7.7 10 Load regulation 0.02 0.2 Load current 0 6.25 Current limit 6.37 7.19 8.44 Short circuit current 4.37 7.19 8.44 24V Maxi Family Page 9 of 15 Rev 6.9 03/2019 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; 75% load; 25C P-P; Nominal input; full load; 20MHz bandwidth 25C; recycle input voltage or PC to restart (>100ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250mV 24V Input Basic Module Operation C2* 4.7nF C4* 4.7nF +IN F1* C1* 0.2F +OUT +S PC SC PR -S -IN -OUT C3* 4.7nF C5* 4.7nF For C1 - C5, keep leads and connections short. Figure 1 -- Basic module operation requires fusing, grounding, bypassing capacitors.* See Maxi, Mini, Micro Design Guide. Output Connections and Considerations The permissible load current must never be exceeded during normal, abnormal or test conditions. Converters subject to dynamic loading exceeding 25% of rated current must be reviewed by Vicor Applications Engineering to ensure that the converter will operate properly. Under dynamic-load, light-load or no-load conditions, the converter may emit audible noise. Converters that utilize remote sense may require compensation circuitry to offset the phase lag caused by the external output leads and load impedance. Remote-Sense Comprehensive Online Application Information leads must be protected for conditions such as lead reversal, noise pickup, open circuit, or excessive output lead resistance between the sense point and the converters output terminals. For applications that may draw more than the rated current, a fast acting electronic circuit breaker must be utilized to protect the converter. Under no circumstance should the rated current be exceeded. Utilizing or testing of current limit or short circuit current will damage the converter. Ensure that the total output capacitance connected to the converter does not exceed the limits on Page 16, "Maximum Output Capacitance", of the design guide. The Design Guide and Applications Manual includes: * Application circuits * Design requirements * EMC considerations * Current sharing in power arrays * Thermal performance information * Recommended soldering methods * Accessory modules - filtering, rectification, front-ends * Mounting options * ...and more. CLICK HERE TO VIEW DESIGN GUIDE Also at vicorpower.com * PowerBench online configurators * Over 20 Application Notes * Online calculators - thermal, trimming, hold-up * PDF data sheets for ALL Vicor products 24V Maxi Family Page 10 of 15 Rev 6.9 03/2019 24V Input Primary Control - PC Pin Module Enable/Disable Module Alarm The module may be disabled by pulling PC below 2.3V with respect to the -Input. This may be done with an open collector transistor, relay, or optocoupler. Multiple converters may be disabled with a single transistor or relay either directly or via "OR'ing" diodes. See Figure 2. The module contains "watchdog" circuitry which monitors input voltage, operating temperature and internal operating parameters. In the event that any of these parameters are outside of their allowable operating range, the module will shut down and PC will go low. PC will periodically go high and the module will check to see if the fault (as an example, overtemperature) has cleared. If the fault has not been cleared, PC will go low again and the cycle will restart. The SC pin will go low in the event of a fault and return to its normal state after the fault has been cleared. See Figures 3 and 5. Primary Auxiliary Supply At 5.7V, PC can source up to 1.5mA. In the example shown in Figure 4, PC powers a module enabled LED. +IN +IN PC Disable SW1 PC 1M SW1, 2, & 3 shown in "Fault" position +OUT +S 50 SW2 SW3 1k 1.23 VDC 6k 5.7VDC (0 - 3mA) -IN -IN Input Undervoltage Input Overvoltage Overtemperature Module Faults 2 - 20ms typ. f (VIN) PR PR Auto Restart SC -S -OUT Disable = PC <2.3V Figure 2 -- Module enable/disable Figure 3 -- PC/SC module alarm logic +IN Fault PC "Module Enabled" PC 40s typ. 5.7V 4k PR SC -IN Figure 4 -- LED on-state indicator Optocoupler 4k Figure 6 -- Isolated on-state indicator 24V Maxi Family Page 11 of 15 1.23V 2 - 20ms typ. Figure 5 -- PC/SC module alarm timing +IN +IN +OUT PC PC +S Comparator SC PR PR -S -IN -IN -OUT Alarm 1.00V Figure 7 -- Secondary-side on-state indicator Rev 6.9 03/2019 24V Input Secondary Control - SC Pin Compatible interface architectures include the following: AC-coupled single-wire interface. All PR pins are connected to a single communication bus through 0.001F (500V) capacitors. This interface supports current sharing and is fault tolerant except for the communication bus. Up to three converters may be paralleled by this method. See Figure 9. Output Voltage Programming The output voltage of the converter can be adjusted or programmed via fixed resistors, potentiometers or voltage DACs. See Figure 8. Transformer-coupled interface. For paralleling four or more converters a transformer-coupled interface is required, and under certain conditions a PR buffer circuit. +OUT +S Error Amplifier For details on parallel operation please refer to the Design Guide & Applications Manual for Maxi, Mini, Micro Family. Ru Trim Up - SC + 1k + 1.23V 0.033F 100 typ. Rd () = Load Rd Trim Down -S 4.7nF + 0.001F This converter is not a constant-power device - it has a constant current limit. Hence, available output power is reduced by the same percentage that output voltage is trimmed down. Do not exceed maximum rated output current. The trim-down resistor must be connected between the SC and -S pins. Do not bypass the SC pin directly with a capacitor. Parallel Bus Figure 9 -- AC-coupled single-wire interface * See Maxi, Mini, Micro Design Guide 4.7nF T1 The converter is rated for a maximum delivered power. To ensure that maximum rated power is not exceeded, reduce maximum output current by the same percentage increase in output voltage. The trim-up resistor must be connected between the SC and +S pins. Do not bypass the SC pin directly with a capacitor. 3. Do not trim the converter above maximum trim range (typically +10%) or the output over voltage protection circuitry may be activated. R1* Trim resistor values calculated automatically: On-line calculators for trim resistor values are available on the vicor website at: asp.vicorpower.com/calculators/calculators.asp?calc=1 Resistor values can be calculated for fixed trim up, fixed trim down and for variable trim up or down. +IN PC PR Module 1 -IN - 4.7nF T2 0.2F R1* +IN PC Module 2 PR -IN Parallel Bus 4.7nF Figure 10 -- Transformer-coupled interface Number of Converters in Parallel *R1 value 2 75 3 50 4 33 5 or more refer to application note: Designing High-Power Arrays using Maxi, Mini, Micro Family DC-DC Converters The PR pin supports paralleling for increased power with N+1 (N+M) redundancy. Modules of the same input voltage, output voltage, and power level will current share if all PR pins are suitably interfaced. 24V Maxi Family Page 12 of 15 0.2F 4.7nF 2. Parallel Operation Module 2 PR 4.7nF + Parallel Bus - PR Pin PC R1* -IN Trim Up 1. +IN 0.2F 0.001F Module 1 -IN 4.7nF - 1,000 Trim Down 2. PR 4.7nF Low inductance ground plane or bus Figure 8 -- Output voltage trim-down and trim-up circuit 1. PC R1* - 1,000 VOUT VNOM - VOUT V V RU () = 1,000 ( OUT -1.23) NOM 1.23 (VOUT - VNOM) +IN 0.2F -OUT Rev 6.9 03/2019 24V Input Parallel Bus Output * The +OUT and -OUT power buses should be designed to minimize and balance parasitic impedance from each module output to the load. +OUT +S SC -S Module 1 * The +Sense pins must be tied together to form a +Sense bus. This must be Kelvin connected to +OUT at a single point. The -Sense pins should be tied together to form a -Sense bus. This must be Kelvin connected to -OUT at a single point. -OUT +S +OUT +S SC -S Module 2 Load -OUT -S * OR'ing diodes may be inserted in series with the +OUT pins of each module to provide module output fault tolerance. * The +Sense and -Sense leads should be routed in close proximity to each other on the printed circuit board. If wires are used to connect the converters on a PCB to an external load, the Sense leads should be twisted together to reduce noise pickup. +OUT Module N+1 * At the discretion of the power system designer, a subset of all modules within an array may be configured as slaves by connecting SC to -S. +S SC -S -OUT Figure 11 -- N+1 module array output connections Pin Styles* Designator Description Finish Notes (None) Short Tin/Lead Requires in-board, mounting L Long Tin/Lead On-board mounting for 0.065" boards S Short ModuMate Gold SurfMate or in-board socket mounting N Long ModuMate Gold On-board socket mounting F Short RoHS Gold Select for RoHS compliant in-board solder, socket, or SurfMate mounting G Long RoHS Gold Select for RoHS compliant on-board solder or socket mounting K Extra Long RoHS Gold Select for RoHS compliance on-board mounting for thicker PCBs (not intended for socket or Surfmate mounting) *Pin style designator follows the "B" after the output power and precedes the baseplate designator. Ex. V48A12T500BN2 -- Long ModuMate Pins Storage Vicor products, when not installed in customer units, should be stored in ESD safe packaging in accordance with ANSI/ESD S20.20, "Protection of Electrical and Electronic Parts, Assemblies and Equipment" and should be maintained in a temperature controlled factory/ warehouse environment not exposed to outside elements controlled between the temperature ranges of 15C and 38C. Humidity shall not be condensing, no minimum humidity when stored in an ESD compliant package. 24V Maxi Family Page 13 of 15 Rev 6.9 03/2019 24V Input Mechanical Drawings No. Converter Pins Function Label 1 +IN + 2 Primary Control PC 3 Parallel PR 4 -IN - 5 -OUT - 6 -Sense -S 7 Secondary Control SC 8 +Sense +S 9 +OUT + SLOTTED BASEPLATE 2. DIMENSIONS AND VALUES IN BRACKETS ARE METRIC 3. MANUFACTURING CONTROL IS IN PLACE TO ENSURE THAT THE SPACING BETWEEN THE MODULES LABEL SURFACE TO THE PRINTED CIRCUIT BOARD OF THE APPLICATION RANGES FROM DIRECT CONTACT (ZERO), TO THE MAXIMUM GAP AS CALCULATED FROM THE TOLERANCE STACK-UP AND IS NOT SUBJECT NEGATIVE TOLERANCE ACCUMULATION Figure 12 -- Module outline PCB THICKNESS 0.062 0.010 1,57 0,25 (7X) PLATED THRU HOLE DIA 1.790** 45,47 0.06 R (4X) 1,5 (2X) INBOARD SOLDER MOUNT ONBOARD SOLDER MOUNT SHORT PIN STYLE LONG PIN STYLE 0.094 0.003 2,39 0,08 0.094 0.003 2,39 0,08 0.194 0.003 4,93 0,08 0.194 0.003 4,93 0,08 ONBOARD SOCKET INBOARD SOCKET MOUNT ALL MARKINGS SURFACE MOUNT THIS SURFACE SURFACE MOUNT SOCKET 0.183 0.003 4,65 0,08 N/A 0.266 0.003 6,76 0,08 N/A 0.178 4,52 1 2 3 4 ALUMINUM BASEPLATE 4.200* 106,68 3.844** 97,64 9 0.400* 10,16 0.195 4,95 8 7 0.700* 17,78 1.000* 25,40 1.400* 35,56 6 PINS STYLES SOLDER:TIN/LEAD PLATED MODUMATE: GOLD PLATED COPPER RoHS: GOLD PLATED COPPER For Soldering Methods and Procedures Please refer to: The Maxi, Mini, Micro Design Guide 5 0.45 11,5 * DENOTES TOL = 0.003 0,08 0.53 13,5 11,7 Decimals Tol. SOCKETS 0.XXDIA. PINS 0.01 0.080" (7X) P/N 13632 (100 0.25 pieces) 0.180" DIA. PINS (2X) P/N0.XXX 13634 (100 0.005 pieces) KIT # 16015 INCLUDES 0.127 (7X) 0.080" DIA. PINS & (2X) 0.180" DIA. PINS **PCB WINDOW Figure 13 -- PCB mounting specifications 24V Maxi Family Page 14 of 15 Unless otherwise specified, dimensions are in inches 0.46 mm Rev 6.9 03/2019 0.56 14,2 Angles SOCKET HEADERS (SURFACE MOUNT) KIT INCLUDES 1 INPUT & OUTPUT P/N 16017 24V Input Vicor's comprehensive line of power solutions includes high density AC-DC and DC-DC modules and accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom power systems. Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor's product warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. Specifications are subject to change without notice. Visit http://www.vicorpower.com/dc-dc-converters-board-mount/high-density-dc-dc-converters for the latest product information. Vicor's Standard Terms and Conditions and Product Warranty All sales are subject to Vicor's Standard Terms and Conditions of Sale, and Product Warranty which are available on Vicor's webpage (http://www.vicorpower.com/termsconditionswarranty) or upon request. Life Support Policy VICOR'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages. Intellectual Property Notice Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Interested parties should contact Vicor's Intellectual Property Department. Contact Us: http://www.vicorpower.com/contact-us Vicor Corporation 25 Frontage Road Andover, MA, USA 01810 Tel: 800-735-6200 Fax: 978-475-6715 www.vicorpower.com email Customer Service: custserv@vicorpower.com Technical Support: apps@vicorpower.com (c)2019 Vicor Corporation. All rights reserved. The Vicor name is a registered trademark of Vicor Corporation. All other trademarks, product names, logos and brands are property of their respective owners. 24V Maxi Family Page 15 of 15 Rev 6.9 03/2019