Rev 1.1

vicorpower.com

Page 6 of 23

05/2016

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NBM3814x60E12A7yzz

Electrical Specifications (Cont.)

Specifications apply over all line and load conditions, unless otherwise noted;

Attribute

Symbol

Conditions / Notes

Min

Typ

Max

Unit

General Powertrain High Voltage Side to Low Voltage Side Specification (Forward Direction) Cont.

Effective HI Side Capacitance

(Internal)

16.80

µF

Effective LO Side Capacitance

(Internal)

140

µF

Effective LO Side Output Capacitance

(External)

Excessive capacitance may drive module into SC

protection

3000

µF

Effective LO Side Output Capacitance

(External)

N = the number of units in parallel

Protection High Voltage Side to Low Voltage Side (Forward Direction)

Auto Restart Time

Startup into a persistent fault condition. Non-Latching

940

1010

ms

HI Side Overvoltage Lockout

Threshold

63

66

69

V

Hi Side Overvoltage Recovery

Threshold

60

63

66

V

HI Side Overvoltage Lockout

Hysteresis

3

V

HI Side Overvoltage Lockout

Response Time

30

µs

HI Side Undervoltage Lockout

Threshold

28

30

32

V

HI Side Undervoltage Recovery

Threshold

32

34

36

V

HI Side Undervoltage Lockout

Hysteresis

4

V

HI Side Undervoltage Lockout

Response Time

100

µs

HI Side Undervoltage Startup Delay

(i.e One time Startup delay form application of

30

ms

HI Side Soft-Start Time

From powertrain active. Fast Current limit protection

disabled during Soft-Start

1

ms

LO Side Output Overcurrent Trip

Threshold

201

220

250

A

LO Side Output Overcurrent

Response Time Constant

Effective internal RC filter

4

ms

LO Side Output Short Circuit

Protection Trip Threshold

250

A

LO Side Output Short Circuit

Protection Response Time

1

µs

Overtemperature Shutdown

Threshold

Temperature sensor located inside controller IC

125

°C

Overtemperature Recovery

Threshold

105

110

115

°C

Undertemperature Shutdown

Threshold

Temperature sensor located inside controller IC;

Protection not available for M-Grade units.

-45

°C

Undertemperature Restart Time

Startup into a persistent fault condition. Non-Latching

3

s