V375A36M500BS3 - Vicor Corporation

375V Input

Maxi Family

DC-DC Converter Module

375V Maxi Family Rev 10.2

Page 1 of 15 03/2019

NRTL

CUS

Actual size:

4.6 x 2.2 x 0.5in

[117 x 56 x 12,7mm]

Features & Beneﬁts

• DC input range: 250 – 425V

• Isolated output

• Input surge withstand: 500V for 100ms

• DC output: 2 – 54V

• Programmable output: 10 – 110%

• Regulation: ±0.25% no load to full load

• Efﬁciency: Up to 89%

• Maximum operating temp: 100°C,

full load

• Power density: up to 120W 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

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.

High-frequency ZCS/ZVS switching provides

high power density with low noise and

high efﬁciency.

Parameter Rating Unit Notes

+IN to –IN voltage –0.5 to +525 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

–Sense to –OUT voltage 1.0 VDC

Isolation voltage

IN to OUT 3000 VRMS Test voltage

IN to base 1500 VRMS Test voltage

OUT to base 500 VRMS Test voltage

Operating Temperature –55 to +100 °C M-Grade

Storage Temperature –65 to +125 °C M-Grade

Pin soldering temperature 500 [260] °F [°C] <5sec; wave solder

750 [390] °F [°C] <7sec; hand solder

Mounting torque 5 [0.57] in.lbs [N.m] 6 each

Absolute Maximum Ratings

Output Voltage

2 = 2V

3V3 = 3.3V

5 = 5V

8 = 8V

12 = 12V

15 = 15V

24 = 24V

28 = 28V

32 = 32V

36 = 36V

48 = 48V

54 = 54V

Output Power

VOUT POUT

2V 160W

3.3V 200W, 264W

5V 300W, 400W

8V 300W, 400W

12V 400W, 600W

15V 400W, 600W

24V 400W, 600W

28V 400W, 600W

32V 600W

36V 400W, 500W, 600W

48V 400W, 600W

54V 600W

Part Numbering

e.g. V375A12T600BL2

375A

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

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

Product Type

V = Standard

S = Enhanced

efﬁciency

(avail. ≤12

VOUT only)

Applications

Off-line systems with PFC front ends, industrial and process control, distributed power,

medical, ATE, communications, defense and aerospace.

For details on proper operation please refer to the:

Design Guide & Applications Manual for Maxi, Mini, Micro Family.

375V Maxi Family Rev 10.2

Page 2 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Operating input voltage 250 375 425 VDC

Input surge withstand 500 VDC <100ms

Undervoltage turn-on 242.5 247.5 VDC

Undervoltage turn-off 204.7 212.2 VDC

Overvoltage turn-off/on 429.2 446.3 467.5 VDC

Disabled input current 1.1 mA PC pin low

Module Input Speciﬁcations

Parameter Min Typ Max Unit Notes

Output voltage setpoint 1 % Of nominal output voltage. Nominal input; full load; 25°C

Line regulation ±0.02 ±0.2 % Low line to high line; full load

Temperature regulation ±0.002 ±0.005 % / °C Over operating temperature range

Power sharing accuracy ±2 ±5 % 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

2V –0.5 to 3.1 VDC Externally applied

3.3V –0.5 to 4.7 VDC Externally applied

5V –0.5 to 7.0 VDC Externally applied

8V –0.5 to 10.9 VDC Externally applied

12V –0.5 to 16.1 VDC Externally applied

15V –0.5 to 20.0 VDC Externally applied

24V –0.5 to 31.7 VDC Externally applied

28V –0.5 to 36.9 VDC Externally applied

32V –0.5 to 41.9 VDC Externally applied

36V –0.5 to 47.1 VDC Externally applied

48V –0.5 to 62.9 VDC Externally applied

54V –0.5 to 70.2 VDC Externally applied

Module Output Speciﬁcations

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

Thermal Resistance and Capacity

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.

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.

375V Maxi Family Rev 10.2

Page 3 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

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 resistance 10 MΩ IN to OUT, IN to baseplate, OUT to baseplate

Weight (E, C, T grade) 6.5 7.3 8.1 ounces

[184.3] [207.5] [230.7] [grams]

Weight (H, M grade) 7.4 8.2 9.0 ounces

[209.3] [232.5] [255.7] [grams]

Temperature limiting 100 115 °C See Figs. 3 and 5. Do not operate coverter >100°C.

Agency approvals cURus, cTÜVus, CE UL60950-1, EN60950-1, CSA60950-1, IEC60950-1.

With appropriate fuse in series with the +Input

Parameter Min Typ Max Unit Notes

Primary Side (PC = Primary Control; PR = Parallel)

PC bias voltage 5.50 5.75 6.00 VDC PC current = 1.0mA

current limit 1.5 2.1 3.0 mA PC voltage = 5.5V During normal operation

PC module disable 2.3 2.6 2.9 VDC Switch must be able to sink ≥4mA. See Fig. 2

PC module enable delay 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 MΩ See Fig. 3, converter off or fault mode

PR emitter amplitude 5.7 5.9 6.1 Volts PR load >30Ω, <30pF

PR emitter current 150 mA

PR receiver impedance 375 500 625 Ω 25°C

PR receiver threshold 2.4 2.5 2.6 Volts Minimum pulse width: 20ns

PR drive capability 12 modules Without PR buffer ampliﬁer

Secondary Side (SC = Secondary Control)

SC bandgap voltage 1.21 1.23 1.25 VDC Referenced to –Sense

SC resistance 990 1000 1010 Ω

SC capacitance 0.033 µF

SC module alarm 0 VDC With open trim; referenced to –Sense. See Fig. 7

Module Control Speciﬁcations

Module General Speciﬁcations

Module Family Electrical Characteristics (Cont.)

* Isolation test voltage, 1 minute or less.

Note: Speciﬁcations are subject to change without notice.

375V Maxi Family Rev 10.2

Page 4 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A3V3C264BL (enhanced efﬁciency) 83.0 86.0 % Nominal input; 75% load; 25°C

V375A3V3C264BL (standard efﬁciency) 80.0 81.0

Ripple and noise 120 150 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 4.14 4.3 4.46 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 4.9 7.8 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 80 Amps

Current limit 81.6 92 104 Amps Output voltage 95% of nominal

Short circuit current 56 92 104 Amps Output voltage <250mV

3.3VOUT, 264W (e.g. S375A3V3C264BL, V375A3V3C264BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A2C160BL (enhanced efﬁciency) 76.0 80.0 % Nominal input; 75% load; 25°C

V375A2C160BL (standard efﬁciency) 72.0 73.7

Ripple and noise 200 250 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 2.7 2.8 2.9 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 8.4 11 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 80 Amps

Current limit 81.6 92 108 Amps Output voltage 95% of nominal

Short circuit current 56 92 108 Amps Output voltage <250mV

2VOUT, 160W (e.g. S375A2C160BL, V375A2C160BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A3V3C200BL (enhanced efﬁciency) 82.0 86.0 % Nominal input; 75% load; 25°C

V375A3V3C200BL (standard efﬁciency) 78.0 78.9

Ripple and noise 60 75 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 4.14 4.3 4.46 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 7.9 9.1 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 60.6 Amps

Current limit 61.8 69.7 81.9 Amps Output voltage 95% of nominal

Short circuit current 42.4 69.7 81.9 Amps Output voltage <250mV

3.3VOUT, 200W (e.g. S375A3V3C200BL, V375A3V3C200BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A5C400BL (enhanced efﬁciency) 84.0 86.0 % Nominal input; 75% load; 25°C

V375A5C400BL (standard efﬁciency) 80.0 82.0

Ripple and noise 210 270 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 6.26 6.49 6.72 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 6.6 9 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 80 Amps

Current limit 81.6 92 108 Amps Output voltage 95% of nominal

Short circuit current 56 97 108 Amps Output voltage <250mV

5VOUT, 400W (e.g. S375A5C400BL, V375A5C400BL)

Module-Speciﬁc Operating Speciﬁcations

375V Maxi Family Rev 10.2

Page 5 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A5C300BL (enhanced efﬁciency) 84.0 87.0 % Nominal input; 75% load; 25°C

V375A5C300BL (standard efﬁciency) 82.0 83.3

Ripple and noise 80 100 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 6.03 6.25 6.47 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 8.8 10.2 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 60 Amps

Current limit 61.2 69 81 Amps Output voltage 95% of nominal

Short circuit current 42 69 81 Amps Output voltage <250mV

5VOUT, 300W (e.g. S375A5C300BL, V375A5C300BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A12C600BL (enhanced efﬁciency) 86.0 89.0 % Nominal input; 75% load; 25°C

V375A12C600BL (standard efﬁciency) 86.0 87.1

Ripple and noise 320 400 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 13.7 14.3 14.9 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 8.7 13 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 50 Amps

Current limit 51 57.5 67.5 Amps Output voltage 95% of nominal

Short circuit current 35 57.5 67.5 Amps Output voltage <250mV

12VOUT, 600W (e.g. S375A12C600BL, V375A12C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A8C300BL (enhanced efﬁciency) 85.0 87.0 % Nominal input; 75% load; 25°C

V375A8C300BL (standard efﬁciency) 82 83.1

Ripple and noise 220 275 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 9.36 9.7 10.1 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 9.3 10.8 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Output Current 0 37.5 Amps

Current limit 38.2 43.1 50.7 Amps Output voltage 95% of nominal

Short circuit current 26.2 43.1 50.7 Amps Output voltage <250mV

8VOUT, 300W (e.g. S375A8C300BL, V375A8C300BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A8C400BL (enhanced efﬁciency) 84.0 87.0 % Nominal input; 75% load; 25°C

V375A8C400BL (standard efﬁciency) 82.5 83.6

Ripple and noise 288 360 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 9.55 9.9 10.3 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 17.9 19 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 50 Amps

Current limit 51 57.5 67.5 Amps Output voltage 95% of nominal

Short circuit current 35 57.5 67.5 Amps Output voltage <250mV

8VOUT, 400W (e.g. S375A8C400BL, V375A8C400BL)

Module-Speciﬁc Operating Speciﬁcations (Cont.)

375V Maxi Family Rev 10.2

Page 6 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Efﬁciency 86.5 87.8 % Nominal input; 75% load; 25°C

Ripple and noise 80 100 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 27.1 28.1 29.1 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 9.3 10.9 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 25 Amps

Current limit 25.5 28.8 33.8 Amps Output voltage 95% of nominal

Short circuit current 17.5 28.8 37.5 Amps Output voltage <250mV

24VOUT, 600W (e.g. V375A24C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 84 85.3 % Nominal input; 75% load; 25°C

Ripple and noise 300 375 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 17.1 17.8 18.5 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 12.3 14 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 26.67 Amps

Current limit 27.2 30.7 36.1 Amps Output voltage 95% of nominal

Short circuit current 18.6 30.7 36.1 Amps Output voltage <250mV

15VOUT, 400W (e.g. V375A15C400BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 87.0 88.1 % Nominal input; 75% load; 25°C

Ripple and noise 240 300 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 17.1 17.8 18.5 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 9 12 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 40 Amps

Current limit 40.8 46 52 Amps Output voltage 95% of nominal

Short circuit current 28 46 52 Amps Output voltage <250mV

15VOUT, 600W (e.g. V375A15C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency

S375A12C400BL (enhanced efﬁciency) 86.0 89.0 % Nominal input; 75% load; 25°C

V375A12C400BL (standard efﬁciency) 85.0 86.2

Ripple and noise 240 300 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 13.7 14.3 14.9 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 12.5 14.5 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 33.33 Amps

Current limit 33.9 38.3 45 Amps Output voltage 95% of nominal

Short circuit current 23.3 38.3 45 Amps Output voltage <250mV

12VOUT, 400W (e.g. S375A12C400BL, V375A12C400BL)

Module-Speciﬁc Operating Speciﬁcations (Cont.)

375V Maxi Family Rev 10.2

Page 7 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Efﬁciency 86.8 87.8 % Nominal input; 75% load; 25°C

Ripple and noise 420 500 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 31.5 32.7 33.9 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 9.5 10.2 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 21.43 Amps

Current limit 21.8 24.7 28.9 Amps Output voltage 95% of nominal

Short circuit current 14 24.7 28.9 Amps Output voltage <250mV

28VOUT, 600W (e.g. V375A28C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 86.5 88 % Nominal input; 75% load; 25°C

Ripple and noise 160 200 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 31.5 32.7 33.9 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 10.7 12 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 14.29 Amps

Current limit 14.5 16.4 19.4 Amps Output voltage 95% of nominal

Short circuit current 10 16.4 19.4 Amps Output voltage <250mV

28VOUT, 400W (e.g. V375A28C400BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 87.1 88.1 % Nominal input; 75% load; 25°C

Ripple and noise 300 360 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 35.9 37.3 38.7 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 11.6 12.1 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 18.75 Amps

Current limit 19.1 21.6 24.5 Amps Output voltage 95% of nominal

Short circuit current 13.1 21.6 24.5 Amps Output voltage <250mV

32VOUT, 600W (e.g. V375A32C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 86.5 87.7 % Nominal input; 75% load; 25°C

Ripple and noise 120 150 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 27.1 28.1 29.1 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 13.2 15 Watts No load

Load regulation ±0 ±0.2 % No load to full load; nominal input

Load current 0 16.67 Amps

Current limit 17 19.2 22.6 Amps Output voltage 95% of nominal

Short circuit current 5 19.2 22.6 Amps Output voltage <250mV

24VOUT, 400W (e.g. V375A24C400BL)

Module-Speciﬁc Operating Speciﬁcations (Cont.)

375V Maxi Family Rev 10.2

Page 8 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Efﬁciency 86.6 88.6 % Nominal input; 75% load; 25°C

Ripple and noise 150 188 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 40.4 41.9 43.4 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 12.4 13.2 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 11.11 Amps

Current limit 11.3 12.8 15 Amps Output voltage 95% of nominal

Short circuit current 7.77 12.8 15 Amps Output voltage <250mV

36VOUT, 400W (e.g. V375A36C400BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 87 88.5 % Nominal input; 75% load; 25°C

Ripple and noise 278 348 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 53.2 55.2 57.2 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 13.5 15.0 Watts No load

Load regulation ±0.02 ±0.25 % No load to full load; nominal input

Load current 0 12.5 Amps

Current limit 12.7 14.4 16.3 Amps Output voltage 95% of nominal

Short circuit current 8 14.4 16.3 Amps Output voltage <250mV

48VOUT, 600W (e.g. V375A48C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 85.8 88 % Nominal input; 75% load; 25°C

Ripple and noise 200 250 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 40.4 41.9 43.4 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 14.5 16 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 13.89 Amps

Current limit 14.5 16 18 Amps Output voltage 95% of nominal

Short circuit current 8.5 16 18 Amps Output voltage <250mV

36VOUT, 500W (e.g. V375A36C500BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 86.8 88.6 % Nominal input; 75% load; 25°C

Ripple and noise 216 270 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 40.4 41.9 43.4 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 12.6 14.7 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 16.67 Amps

Current limit 17 19.2 22.6 Amps Output voltage 95% of nominal

Short circuit current 11.6 19.2 22.6 Amps Output voltage <250

36VOUT, 600W (e.g. V375A36C600BL)

Module-Speciﬁc Operating Speciﬁcations (Cont.)

375V Maxi Family Rev 10.2

Page 9 of 15 03/2019

375V Input

Parameter Min Typ Max Unit Notes

Efﬁciency 87.7 89.6 % Nominal input; 75% load; 25°C

Ripple and noise 160 200 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 60.4 62.6 64.8 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 6 12 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 11.11 Amps

Current limit 11.3 12.8 15 Amps Output voltage 95% of nominal

Short circuit current 7.77 12.8 15 Amps Output voltage <250mV

54VOUT, 600W (e.g. V375A54C600BL)

Parameter Min Typ Max Unit Notes

Efﬁciency 87 88.3 % Nominal input; 75% load; 25°C

Ripple and noise 200 250 mV P-P; Nominal input; full load; 20MHz bandwidth

Output OVP setpoint 53.7 55.7 57.7 Volts 25°C; recycle input voltage or PC to restart (>100ms off)

Dissipation, standby 14.2 16.3 Watts No load

Load regulation ±0.02 ±0.2 % No load to full load; nominal input

Load current 0 8.33 Amps

Current limit 8.49 9.58 11.3 Amps Output voltage 95% of nominal

Short circuit current 5.83 9.58 11.3 Amps Output voltage <250mV

48VOUT, 400W (e.g. V375A48C400BL)

Module-Speciﬁc Operating Speciﬁcations (Cont.)

375V Maxi Family Rev 10.2

Page 10 of 15 03/2019

375V Input

+IN

–IN

+OUT

–S

–OUT

C3*

4.7nF

C2*

4.7nF

For C1 – C5, keep leads and connections short.

C5*

4.7nF

C4*

4.7nF

F1*

C1*

0.2µF

Figure 1 — Basic module operation requires fusing, grounding, bypassing capacitors.* See Maxi, Mini, Micro Design Guide.

Basic Module Operation

Comprehensive Online Application Information 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.

Also at vicorpower.com

• PowerBench online conﬁgurators

• Over 20 Application Notes

• Online calculators – thermal, trimming, hold-up

• PDF data sheets for ALL Vicor products

CLICK HERE TO VIEW

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 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.

375V Maxi Family Rev 10.2

Page 11 of 15 03/2019

375V Input

+IN

–IN

Disable

Disable = PC <2.3V

Figure 2 — Module enable/disable

Figure 4 — LED on-state indicator

+IN

–IN

4kΩ

"Module

Enabled"

+IN

–IN

Optocoupler

4kΩAlarm

1.00V

+OUT

–S

–OUT

+IN

–IN

Comparator

+OUT

–S

–OUT

+IN

–IN

Input Undervoltage

2 – 20ms typ.

f (VIN)

Auto

Restart

5.7VDC

(0 – 3mA)

50Ω

SW2 SW3

1.23

VDC

6kΩ

1kΩ

SW1

SW1, 2, & 3

shown in

"Fault" position

Input Overvoltage

Overtemperature

Module Faults

1MΩ

Figure 3 — PC/SC module alarm logic

Figure 6 — Isolated on-state indicator

2 – 20ms typ.

Fault

1.23V

5.7V

40µs typ.

Figure 5 — PC/SC module alarm timing

Figure 7 — Secondary side on-state indicator

Module Enable/Disable

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.

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.

Module Alarm

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 Control – PC Pin

375V Maxi Family Rev 10.2

Page 12 of 15 03/2019

375V Input

Secondary Control – SC Pin

Output Voltage Programming

The output voltage of the converter can be adjusted or

programmed via ﬁxed resistors, potentiometers or voltage

DACs. See Figure 8.

Trim Down

1. 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.

2. The trim-down resistor must be connected between the SC

and –S pins. Do not bypass the SC pin directly with a capacitor.

Trim Up

1. 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.

2. 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.

Parallel Bus – PR Pin

Parallel Operation

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.

Compatible interface architectures include the following:

AC-coupled single-wire interface. All PR pins are connected to a

single communication bus through 0.001µF (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.

Transformer-coupled interface. For paralleling four or more

converters a transformer coupled interface is required, and under

certain conditions a PR buffer circuit.

For details on parallel operation please refer to the

Design Guide & Applications Manual for Maxi, Mini, Micro Family.

Number of Converters in Parallel *R1 value Ω

275

350

433

5 or more refer to application note:

Designing High-Power Arrays

using Maxi, Mini, Micro

Family DC-DC Converters

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.

Figure 9 — AC-coupled single-wire interface

* See Maxi, Mini, Micro Design Guide

+IN

–IN

+IN

–IN

Module 2

Module 1

Parallel

Bus

–

0.2µF

0.001µF

0.2µF

0.001µF

Low inductance

ground plane

or bus

4.7nF

R1*

+IN

–IN

+IN

–IN

Module 2

Module 1

–

0.2µF

Parallel

Bus

4.7nF

R1*

Figure 10 — Transformer-coupled interface

Figure 8 — Output voltage trim-down and trim-up circuit

–OUT

Error Amplifier

0.033µF

–

-S

+OUT

Load

Trim Down

Trim Up

1.23V

1kΩ

100Ω typ.

1,000 VOUT

VNOM – VOUT

Rd (Ω) =

1,000 (VOUT –1.23) VNOM

1.23 (VOUT – VNOM)

RU (Ω) = – 1,000

375V Maxi Family Rev 10.2

Page 13 of 15 03/2019

375V Input

Module 2

Module 1

Module N+1

+OUT

–S

–OUT

Load

–S

+OUT

–S

–OUT

+OUT

–S

–OUT

Figure 11 — N+1 module array output connections

• The +OUT and –OUT power buses should be designed to

minimize and balance parasitic impedance from each mod-

ule output to the load.

• 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.

• 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.

• 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.

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

Parallel Bus Output

Pin Styles *

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 15°C and 38°C.

Humidity shall not be condensing, no minimum humidity when

stored in an ESD compliant package.

375V Maxi Family Rev 10.2

Page 14 of 15 03/2019

375V Input

ALL MARKINGS

THIS SURFACE

PINS STYLES

SOLDER:TIN/LEAD PLATED

MODUMATE: GOLD PLATED COPPER

RoHS: GOLD PLATED COPPER

ALUMINUM

BASEPLATE

0.195

4,95

1.400*

35,56

1.000*

25,40

0.700*

17,78

0.400*

10,16

3.844**

97,64

4.200*

106,68

1.790**

45,47

0.06

1,5

R (4X) 0.178

4,52

56789

12 34

±0.003

±0,08

* DENOTES TOL =

PLATED

THRU HOLE

DIA

PCB THICKNESS 0.062 ±0.010

1,57 ±0,25

SHORT PIN STYLE

0.094 ±0.003

2,39 ±0,08

0.194 ±0.003

4,93 ±0,08

LONG PIN STYLE

0.094 ±0.003

2,39 ±0,08

0.194 ±0.003

4,93 ±0,08

INBOARD

SOLDER

MOUNT

0.45

11,5

SOCKET HEADERS

(SURFACE MOUNT)

KIT INCLUDES

INPUT & OUTPUT

P/N 16017

ONBOARD

SOLDER

MOUNT

(7X)

(2X)

ONBOARD

SOCKET

SURFACE MOUNT

0.56

14,2

SURFACE MOUNT

N/A

INBOARD

SOCKET

MOUNT

0.46

11,7

SOCKET

0.183 ±0.003

4,65 ±0,08

0.266 ±0.003

6,76 ±0,08

SOCKETS

0.080" DIA. PINS (7X)

P/N 13632 (100 pieces)

0.180" DIA. PINS (2X)

P/N 13634 (100 pieces)

KIT # 16015 INCLUDES

(7X) 0.080" DIA. PINS &

(2X) 0.180" DIA. PINS

0.53

13,5

**PCB WINDOW

For Soldering Methods and Procedures

Please refer to:

The Maxi, Mini, Micro Design Guide.

Figure 12 — Module outline

Figure 13 — PCB mounting speciﬁcations

Unless otherwise speciﬁed,

dimensions are in inches

Decimals Tol. Angles

0.XX ±0.01

±0,25 ±1°

0.XXX ±0.005

±0,127

Mechanical Drawings

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

Converter Pins

No. Function Label

1 +IN +

2 Primary PC

Control

3 Parallel PR

4 –IN –

5 –OUT –

6 –Sense –S

7 Secondary SC

Control

8 +Sense +S

9 +OUT +

375V Maxi Family Rev 10.2

Page 15 of 15 03/2019

375V Input

Vicor Corporation

25 Frontage Road

Andover, MA, USA 01810

Tel: 800-735-6200

Fax: 978-475-6715

www.vicorpower.com

Customer Service: custserv@vicorpower.com

Technical Support: apps@vicorpower.com

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.

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