Rev 1.2

Page 8 of 46

11/2015

vicorpower.com

800 927.9474

PRM48Jy480x500A00

Electrical Specifications (cont.)

Specifications apply over all line and load conditions, and trim from 20.0 V to 55.0 V, unless otherwise noted; Boldface specifications apply over the

Attribute

Symbol

Conditions / Notes

Min

Typ

Max

Unit

Powertrain Protections

Input Undervoltage Turn-ON

24.5

26.0

V

Input Undervoltage Turn-OFF

22.0

23.3

V

Input Undervoltage Hysteresis

0.6

1.2

1.5

V

Input Overvoltage Turn-ON

58.0

62.0

V

Input Overvoltage Turn-OFF

64.0

66.0

V

Input Overvoltage Hysteresis

1.6

2.0

2.4

V

Output Overvoltage Threshold

56.0

58.3

60.0

V

Minimum Current Limited Vout

12

V

Overtemperature Shutdown Setpoint

125

ºC

Output Power Limit

500

W

8.8

V

9.5

V

Short Circuit CONTROL NODE Threshold

7.2

V

Short Circuit CONTROL NODE

6.9

V

Recovery Threshold

Short Circuit Timeout

5

ms

Short Circuit Recovery Time

75

ms

Overcurrent (IFB) and

50

120

150

µs

Input Over/Undervoltage Blanking Time

Overtemperature, Output Overvoltage

and ENABLE Shutdown Response Time

2

µs

(Hardware)

Powertrain Supervisory Limits

Input Undervoltage Turn-ON

42.5

44.0

V

(Supervisory)

Input Undervoltage Turn-OFF

24.6

25.7

V

(Supervisory)

Input Undervoltage Hysteresis

14.3

16.9

19.4

V

(Supervisory)

Input Overvoltage Turn-ON

55.5

57.5

V

(Supervisory)

Input Overvoltage Turn-OFF

58.7

60.7

V

(Supervisory)

Input Overvoltage Hysteresis

0.9

1.2

1.5

V

(Supervisory)

Undertemperature Shutdown Setpoint

T Grade

-40

ºC

(Supervisory)

M Grade

-55

ºC

Supervisory Limit Response Time

150

µs