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105572 Rev. AA2
Page 3 of 13
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FNP600/850/1000 AC-DC Front-Ends
& FNR-5-12G/FNR-5-48G Power Shelves Data Sheet
Output Specifications
Parameter
Conditions/Description
Min.
Nom.
Max.
Units
Efficiency: FNP600-48
FNP1000-48
FNP600-12
FNP850-12
Full rated load at 230 VAC input.
88
84
89.5
87
%
Minimum Load
Minimum loading required to maintain regulation.
0
A
Output Power
FNP1000
FNP850
FNP600
1006
856
600
W
Overshoot
Output voltage overshoot at turn-on.
3
%
Transient Response
Maximum recovery time to within 1% of initial set
point due to a 50% load change, 1A/s.
12V or 48V output:
Standby output:
Maximum deviation:
12V or 48V output:
Standby output:
400
2
4
s
ms
%
Turn-On Delay
Time required for initial output voltage stabilization
after application of AC input..
1.5
Sec
Output Regulation
See Model Selection table.
Protection
Parameter
Conditions/Description
Min.
Nom.
Max.
Units
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
Overvoltage
Protection
FNP600-48 &
FNP1000-48
Latch-style overvoltage protection.
Output adjusted to 48V:
57
1
60
V
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
Overcurrent
Protection
(Power supply
recovers when short
is removed.)
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 resistor. Note.
2
1
FNP1000-48 overvoltage protection range is 56 V minimum and 60 V maximum.
2
A pull-up to 3.3V can be achieved by terminating the logic signal with a 10 k resistor to logic ground.