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Vicor FlatPAC Family 50 to 600 Watt AC-DC Switchers U-Series User Manual

Page 2

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Product is internally fused

Application Notes

MOD DIS Input. Apply a current of

1–30 mA to disable output. Forward

voltage drop of internal opto diode is

1.65 V max. at 30 mA max.

AC OK and BUS OK Status Outputs.

Outputs low when OK.

Vce sat. = < 0.4 V @ 1.5m A. Maximum

external pullup is 70 Vdc. AC OK and

BUS OK signals are isolated and can

have different reference levels.

V

+

r

AC OK

+

1.5mA
max.

V

+

r

BUS OK

+

30mA max.

Disable

MOD DIS

V

+

+

1.5mA
max.

FlatPAC

AC Mains and Supervisory Connections

External Supervisory Functions

(2-up and 3-up models only)

MOD DIS –
MOD DIS +
AC OK –
AC OK +
BUS OK –
BUS OK +

Internal
Supervisory
Circuits
(Optocouplers)

AC Mains

Earth Ground

L1

L2/N

GND

2-Up

and

3-Up

1-Up

2