FNP600/850/1000

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BCD20034-G_AE

PARAMETER

CONDITIONS/DESCRIPTION

MIN.

NOM.

MAX.

UNITS

Overvoltage Protection

FNP600-12 &

FNP850-12

Latch-style overvoltage protection.

Output adjusted to 12V:

14.4

15

15.6

V

FNP600-12:

FNP850-12:

Latch-style overvoltage protection.

Output adjusted to 7V:

8.75

8.44

9.04

8.75

9.33

9.1

V

FNP600-48 &

FNP1000-48

Latch-style overvoltage protection.

Output adjusted to 48V:

60

V

Overcurrent Protection

(Power supply recovers

when short is removed.)

FNP600-12

Current limit.12V output:

12V Standby output:

54

0.55

56

0.75

61

1.0

A

FNP850-12

Current limit.12V output:

12V Standby output:

77

0.55

80

0.75

88

1.0

A

FNP600-48

Current limit.48V output:

12V Standby output:

13

0.75

14

16

1.75

A

FNP1000-48

Current limit.48V output:

12V Standby output:

22

0.75

23

25

1.75

A

Short-Circuit Protection

Power supply recovers when short is removed.

Overtemperature/

Fan Failure Warning

FNP 12V or 48V Vo1 supply output will shut down in the event of an overtemperature condition or blocked fan

rotor. Supply's fan and Vaux are active. Power supply will recover when OT condition is removed. Amber OT

LED will turn ON to indicate fault condition.

OT/Fan Fail is an open-collector signal with 20-mA pull-down. High signal indicates a normal operating condition.

Output will go low at least 100 ms before OT condition shuts down the power supply. Internally pulled up to 5V

with a 5.1 k

Ω resistor to logic ground.

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

DC OK

TTL open-collector signal with active 20-mA pull-down.

Represents percent of output voltage where signal is OK.

Below this voltage, a signal high condition indicates an output

which is out of tolerance. Green DC OK LED on front panel

k

90

110

%

Input Power Fail Warning

TTL open-collector signal with active 20-mA pull-down. High

indicates an input power fail. Power Fail Warning will turn OFF

green AC OK LED. Represents the time after warning signal

Internally pulled up to 5V with a 5.1 k

5

ms

Power Supply Present

Signal

Resistance of connection to logic ground which allows user to

10

Ω

Current Share

Main output only. Difference in current

between two supplies at >10% load value.

FNP600-12:

5

A

FNP850-12:

7

FNP600-48:

2

FNP1000-48:

2

Remote Sense

Total voltage compensation for cable losses with respect to the

main output.

0.5

V

Output Enable

Open circuit or logic high from ENA pin to Vo1 RTN shuts OFF

Vo1; Vaux and fan are operational. Logic low (2 mA sink

capability) or jumper will turn ON Vo1 within 500 ms. Open

circuit voltage on enable pin is 3.3 VDC. Externally applied

voltage to the enable pin should NOT exceed 7 VDC. Signal is

referred to as Logic Return (LRTN).

2

A pull-up to 3.3V can be achieved by terminating the logic signal with a 10 k

Ω resistor to logic ground.