DC-DC Converter Module
300V Maxi Family Rev 10.4
Page 1 of 14 05/2018
300V Input
Maxi Family
Actual size:
4.6 x 2.2 x 0.5in
[117 x 56 x 12,7mm]
S
NRTL
CUS
CUS
®
Output Voltage
2 = 2V
3V3 = 3.3V
5 = 5V
8 = 8V
12 = 12V
15 = 15V
24 = 24V
28 = 28V
36 = 36V
48 = 48V
Output Power
VOUT POUT
2V 160W
3.3V 264W, 200W
5V 400W, 300W
8V 400W, 300W
12V 500W, 400W
15V 500W, 400W
24V 500W, 400W
28V 500W, 400W
36V 500W, 400W
48V 500W, 400W
Part Numbering
e.g. V300A12T500BL2
300A B
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
V
OUT
only)
Features & Benefits
• DC input range: 180 – 375V
• Isolated output
• Input surge withstand: 400V for 100ms
• DC output: 2 – 48V
• Programmable output: 10 – 110%
• Regulation: ±0.3% no load to full load
• Efficiency: Up to 89%
• Maximum operating temp: 100°C,
full load
• Power density: up to 100W 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 +410 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
+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
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
Applications
Off-line systems with auto-ranging or 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.
300V Maxi Family Rev 10.4
Page 2 of 14 05/2018
300V Input
Parameter Min Typ Max Unit Notes
Operating input voltage 180 300 375 VDC
Input surge withstand 400 VDC <100ms
Undervoltage turn-on 174.6 178.2 VDC
Undervoltage turn-off 147.4 152.8 VDC
Overvoltage turn-off/on 378.7 393.8 412.6 VDC
Disabled input current 1.2 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 ±0.20 % 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
Of nominal output voltage. For trimming below 90%
Programming range 10 110 % 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
36V –0.5 to 47.4 VDC Externally applied
48V –0.5 to 62.9 VDC Externally applied
MODULE OUTPUT SPECIFICATIONS
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 9.
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.
300V Maxi Family Rev 10.4
Page 3 of 14 05/2018
300V 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 ≥4 mA. 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
* Isolation test voltage, 1 minute or less.
Note: Specifications are subject to change without notice.
Module Family Electrical Characteristics (Cont.)
300V Maxi Family Rev 10.4
Page 4 of 14 05/2018
300V Input
Parameter Min Typ Max Unit Notes
Efficiency
S300A2C160BL (enhanced efficiency) 74.5 82.5 % Nominal input; full load; 25°C
V300A2C160BL (standard efficiency) 72.5 74
Ripple and noise 262 327 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 7.9 8.1 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 92 112 Amps Output voltage 95% of nominal
Short circuit current 56 92 112 Amps Output voltage <250mV
2VOUT, 160W (e.g. S300A2C160BL, V300A2C160BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A3V3C264BL (enhanced efficiency) 81.0 84.5 % Nominal input; full load; 25°C
V300A3V3C264BL (standard efficiency) 80.0 81.2
Ripple and noise 288 360 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 8.1 9.4 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 92 112 Amps Output voltage 95% of nominal
Short circuit current 56 92 112 Amps Output voltage <250mV
3.3VOUT, 264W (e.g. S300A3V3C264BL, V300A3V3C264BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A3V3C200BL (enhanced efficiency) 80.5 84.5 % Nominal input; full load; 25°C
V300A3V3C200BL (standard efficiency) 78.1 79.6
Ripple and noise 80 100 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 6.2 12 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. S300A3V3C200BL, V300A3V3C200BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A5C400BL (enhanced efficiency) 83.8 86.5 % Nominal input; full load; 25°C
V300A5C400BL (standard efficiency) 81.5 83
Ripple and noise 210 295 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 6.2 9.3 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 92 112 Amps Output voltage 95% of nominal
Short circuit current 56 92 112 Amps Output voltage <250mV
5VOUT, 400W (e.g. S300A5C400BL, V300A5C400BL)
MODULE-SPECIFIC OPERATING SPECIFICATIONS
300V Maxi Family Rev 10.4
Page 5 of 14 05/2018
300V Input
Parameter Min Typ Max Unit Notes
Efficiency
S300A5C300BL (enhanced efficiency) 83.5 86.5 % Nominal input; full load; 25°C
V300A5C300BL (standard efficiency) 83.2 84.2
Ripple and noise 160 220 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 12.0 13.2 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. S300A5C300BL, V300A5C300BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A8C400BL (enhanced efficiency) 83.7 87.0 % Nominal input; full load; 25°C
V300A8C400BL (standard efficiency) 82.5 83.8
Ripple and noise 320 400 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 14.6 16 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. S300A8C400BL, V300A8C400BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A8C300BL (enhanced efficiency) 85.0 87.0 % Nominal input; full load; 25°C
V300A8C300BL (standard efficiency) 82 84.8
Ripple and noise 250 313 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 8.9 10 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. S300A8C300BL, V300A8C300BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A12C500BL (enhanced efficiency) 86.6 88.0 % Nominal input; full load; 25°C
V300A12C500BL (standard efficiency) 85.5 86.7
Ripple and noise 400 500 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 12.2 13.2 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 41.6 Amps
Current limit 42.5 48 60.5 Amps Output voltage 95% of nominal
Short circuit current 29.1 48 60.5 Amps Output voltage <250mV
12VOUT, 500W (e.g. S300A12C500BL, V300A12C500BL)
MODULE-SPECIFIC OPERATING SPECIFICATIONS (CONT.)
300V Maxi Family Rev 10.4
Page 6 of 14 05/2018
300V Input
Parameter Min Typ Max Unit Notes
Efficiency 87.0 88.0 % Nominal input; full load; 25°C
Ripple and noise 100 125 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 9.8 13 Watts No load
Load regulation ±0.02 ±0.3 % No load to full load; nominal input
Load current 0 20.8 Amps
Current limit 21.3 24 27.2 Amps Output voltage 95% of nominal
Short circuit current 14.6 24 27.2 Amps Output voltage <250mV
24VOUT, 500W (e.g. V300A24C500BL)
Parameter Min Typ Max Unit Notes
Efficiency 81.4 83.4 % Nominal input; full load; 25°C
Ripple and noise 320 400 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 11.3 18.1 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 26.6 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. V300A15C400BL)
Parameter Min Typ Max Unit Notes
Efficiency
S300A12C400BL (enhanced efficiency) 86.6 88.0 % Nominal input; full load; 25°C
V300A12C400BL (standard efficiency) 85.5 86.5
Ripple and noise 420 525 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 12.7 14.1 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 33.3 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. S300A12C400BL, V300A12C400BL)
Parameter Min Typ Max Unit Notes
Efficiency 87.0 88.2 % Nominal input; full load; 25°C
Ripple and noise 200 250 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 8 12 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 33.3 Amps
Current limit 34 38.4 43.5 Amps Output voltage 95% of nominal
Short circuit current 23.3 38.4 43.5 Amps Output voltage <250mV
15VOUT, 500W (e.g. V300A15C500BL)
MODULE-SPECIFIC OPERATING SPECIFICATIONS (CONT.)
300V Maxi Family Rev 10.4
Page 7 of 14 05/2018
300V Input
Parameter Min Typ Max Unit Notes
Efficiency 87.5 88.5 % Nominal input; full load; 25°C
Ripple and noise 160 240 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 10.1 10.5 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 17.8 Amps
Current limit 18.2 20.6 24.2 Amps Output voltage 95% of nominal
Short circuit current 12.5 20.6 24.2 Amps Output voltage <250mV
28VOUT, 500W (e.g. V300A28C500BL)
Parameter Min Typ Max Unit Notes
Efficiency 85.5 87 % Nominal input; full 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 14.8 16.8 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 14.3 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. V300A28C400BL)
Parameter Min Typ Max Unit Notes
Efficiency 84.8 86.3 % Nominal input; full load; 25°C
Ripple and noise 150 188 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 10.9 17.5 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 16.6 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 <250mV
24VOUT, 400W (e.g. V300A24C400BL)
Parameter Min Typ Max Unit Notes
Efficiency 87 88.4 % Nominal input; full load; 25°C
Ripple and noise 240 300 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 17.1 19 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 13.9 Amps
Current limit 14.1 16 18.8 Amps Output voltage 95% of nominal
Short circuit current 9.73 16 18.8 Amps Output voltage <250mV
36VOUT, 500W (e.g. V300A36C500BL)
MODULE-SPECIFIC OPERATING SPECIFICATIONS (CONT.)
300V Maxi Family Rev 10.4
Page 8 of 14 05/2018
300V Input
Parameter Min Typ Max Unit Notes
Efficiency 87.4 88.4 % Nominal input; full load; 25°C
Ripple and noise 135 169 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 11.3 13.2 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 11.1 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.V300A36C400BL)
Parameter Min Typ Max Unit Notes
Efficiency 87.5 89 % Nominal input; full load; 25°C
Ripple and noise 210 265 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 12.6 13.3 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 10.4 Amps
Current limit 10.7 12.1 14.1 Amps Output voltage 95% of nominal
Short circuit current 7.35 12.1 15.1 Amps Output voltage <250mV
48VOUT, 500W (e.g. V300A48C500BL)
Parameter Min Typ Max Unit Notes
Efficiency 87 88.3 % Nominal input; full load; 25°C
Ripple and noise 280 350 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 15.4 16.4 Watts No load
Load regulation ±0.02 ±0.2 % No load to full load; nominal input
Load current 0 8.3 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. V300A48C400BL)
MODULE-SPECIFIC OPERATING SPECIFICATIONS (CONT.)
300V Maxi Family Rev 10.4
Page 9 of 14 05/2018
300V Input
+IN
PC
PR
–IN
+OUT
+S
SC
–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.
300V Maxi Family Rev 10.4
Page 10 of 14 05/2018
300V Input
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
+IN
PC
PR
–IN
Disable
Disable = PC <2.3V
Figure 2 — Module enable/disable
Figure 4 — LED on-state indicator
+IN
PC
PR
–IN
4kΩ
"Module
Enabled"
+IN
PC
PR
–IN
Optocoupler
4kΩAlarm
1.00V
+OUT
+S
SC
–S
–OUT
+IN
PC
PR
–IN
Comparator
+OUT
+S
SC
–S
–OUT
+IN
PC
PR
–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
SC
PC
1.23V
5.7V
40µs typ.
Figure 5 — PC/SC module alarm timing
Figure 7 — Secondary side on-state indicator
300V Maxi Family Rev 10.4
Page 11 of 14 05/2018
300V 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
Figure 8 — Output voltage trim down and trim up circuit
–OUT
+S
SC
Error Amplifier
+
0.033µF
–
+
-S
+OUT
Load
Rd
Trim Down
Ru
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
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
PC
PR
–IN
+IN
PC
PR
–IN
Module 2
Module 1
+
Parallel
Bus
–
0.2µF
0.001µF
0.2µF
0.001µF
Low inductance
ground plane
or bus
4.7nF
4.7nF
4.7nF
4.7nF
R1*
R1*
+IN
PC
PR
–IN
+IN
PC
PR
–IN
Module 2
Module 1
T1
T2
+
–
0.2µF
0.2µF
Parallel
Bus
4.7nF
4.7nF
4.7nF
4.7nF
R1*
R1*
Figure 10 — Transformer-coupled interface
300V Maxi Family Rev 10.4
Page 12 of 14 05/2018
300V Input
Module 2
Module 1
Module N+1
+OUT
+S
SC
–S
–OUT
Load
+S
–S
+OUT
+S
SC
–S
–OUT
+OUT
+S
SC
–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
module 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.
300V Maxi Family Rev 10.4
Page 13 of 14 05/2018
300V 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
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.
Mechanical Drawings
NOTES:
1. MATERIAL:
BASE: 6000 SERIES ALUMINUM
PINS: RoHS PINS GOLD PLATE 30 MICRO INCH MIN; NON-RoHS
PINS: TIN/LEAD 90/10 BRIGHT
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
DIMENSION L
PIN SHORT – .55±.015 [14.0±.38]
PIN LONG–– .63±.015 [16.0±.38]
PIN EXTRA LONG–––- .71±.015 [18.0±.38]
Figure 12 — Module outline
Figure 13 — PCB mounting specifications
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 +
Unless otherwise specified,
dimensions are in inches
mm
Decimals Tol. Angles
0.XX ±0.01
±0.25 ±1°
0.XXX ±0.005
±0.127
300V Maxi Family Rev 10.4
Page 14 of 14 05/2018
300V Input
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
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
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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
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