PFC250 AC-DC Series Data Sheet

MAY 26, 2006 revised to AUG 16, 2006

Page 3 of 5

www.power-one.com

Input Specifications

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Input Voltage - AC

Continuous input range.

85

264

VAC

Input Frequency

AC Input.

47

63

Hz

Brown Out Protection

Lowest AC input voltage that regulation is maintained with full rated loads.

80

VAC

Hold-up Time

After last AC line peak at 250 watts.

20

ms

Input Current

85 VAC at full rated load.

4.5

Input Protection

Non-user serviceable internally located AC input line fuse.

Inrush Surge Current

Internally limited by thermistor. Vin = 230 VAC, one cycle, 25°C.

35

Power Factor

Per EN61000-3-2.

0.95

W/VA

Operating Frequency

Switching frequency of main output transformer.

129

Switching frequency of secondary transformer.

70

kHz

Switching frequency of Power Factor Correction circuit.

60

Output Specifications

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Efficiency

Full rated load, 110 VAC. Varies with distribution of loads among outputs.

65

75

%

Minimum Load, V1

Minimum load required to maintain regulation on V2

Single output models

0

All other models

4

Amps

Minimum Load, V3

Minimum load required to maintain regulation on V4

Single output models

N/A

PFC250-4000

1.25

Amps

All other models

0.6

Ripple and Noise

Full load, 20 MHz bandwidth.

See Model Selections

Output Power

300 LFM forced-air cooling.

250

Watts

Overshoot /Undershoot

Output voltage overshoot/undershoot at turn-on.

0

%

Regulation

Varies by output. Total regulation includes: line changes over the specified

See Model Selections

input range, changes in load starting at 20% load and changing to 100% load.

Transient Response

Recovery time to within 1% of initial set point due to a 25% step load from any

500

s

load setting from minimum to maximum load.

Turn-on Delay

Time required for initial output voltage stabilization.

2

Sec

Turn-on Rise Time

Time required for output voltage to rise from 10% to 90%.

20

ms

Interface Signals and Internal Protection

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Overvoltage Protection

Latch style overvoltage protection. Available on all

3.3V output, V1

4.1

4.65

single output models and V1, V2, and V3 on all

3.3V output, V2

4.2

4.2

multiple-output models.

5V output, V1, V2

6.0

6.4

12V output, V1, V2

14.0

16.0

V

15V output, V1

18.3

19.8

24V output, V1

27.0

30.7

48V output, V1

60.0

70.0

Overload Protection

Fully protected against output overload and short circuit. Automatic recovery upon removal of overload condition.

Overtemperature Protection

System shutdown due to excessive internal temperature, automatic reset.

Output Good

TTL compatible signal. Signal is high when V1 output is

3.3V

3.16

V

within 5% of nominal. Signal shall remain low for 20

5V

4.75

milliseconds following loss of Output Good.

Input Power

TTL compatible logic signal. Time before regulation dropout due to loss of input

5

ms

Fail Warning

power. May be used as independent PSOK signal in redundant applications.

Current Share

Accuracy of shared current with up to 6 parallel units. Single-wire current share

10

%

on V1 and V2 with return via vegative (-) Sense return. Minimum current share

load is 6A or 50W, whichever is smaller.

Remote Sense

Available on V1 and V2. Total voltage compensation for cable losses with

250

mV

respect to the main output.

Inhibit

Output voltage is inhibited by application of external high (5V) signal.

Standby Power

Available with fan option versions only (+5VDC).

100

mA