SFP450 Series

3

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BCD20030-G_AC

PARAMETER

CONDITIONS / DESCRIPTION

Static

Includes static information such as: part number and revision level, output rating, serial number,

date code, and manufacturing location.

Status (Logic 1 or 0)

AC Input OK.

DC Output OK.

Overtemperature.

Overcurrent.

Fan OK.

Overvoltage Alert

Undervoltage Alert

Real-Time Monitoring

Output voltage (main output). LSB = 20 mV

Output current (main output). LSB = 50 mA

PARAMETER

CONDITIONS / DESCRIPTION

MIN

NOM

MAX

UNITS

Overvoltage Protection

Latch-style overvoltage protection.

15

4.3

V

Overcurrent Protection

Current limit (Latching Mode).

12 V output:

Standby output:

38.4

3.2

47.

6 6

A

Short-Circuit Protection

Latching Mode.

Overtemperature/

Fan Failure Warning

12 V output will shut down in the event of an overtemperature condition or blocked fan rotor.

OT setpoint is 62 ±3ºC. 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.

PS_KILL

Output enable. Pulled low on conjunction with PS_ON being pulled low allows V1 to be activated. PSKILL will

cause the PSU to latch off the 12 V rail, the latch can be cleared by recycling PSON or recycling the AC supply.

+12V Current Share

0 to 8V signal used for active current sharing.

Write Protect

For factory use only.

PS A0

SDA

SCL

Tach

Two pulses per fan revolution.

AC_OK/H

High signal indicates AC is within PSU limits.

Present/L

100 Ohm resistor internally connected to RTN allowing the PSU to be detected on insertion.

Alert/L

Low signal indicates PSU fan is running below speed or an overtemperature limit was exceeded.

PWROK/H

High signal indicates both outputs are within regulation limits.