Output Signals

PS_PRESENT

Signal used to indicate to the system that a power supply is inserted in the power bay.

PS_INTERRUPT

Active low signal used by the power supply to indicate to the system that a change in power supply status has occurred. This event can be

triggered by faults such as OVP, OCP, OTP, and fan fault. This signal can be cleared by a CLEAR_FAULT command.

MIN

MAX

V

IL

Input logic level LOW

0.8 V

V

IH

Input logic level HIGH

2.0 V

3.46 V

I

SOURCE

Current that may be sourced by this pin

4 mA

I

SINK

Current that may be sunk by this pin at low state

4 mA

Control and Status Signals

Rev. 12.17.13

DS2500PE-3

4 of 9

Embedded Power for

Business-Critical Continuity

BUS Signals

ISHARE

Bus signal used by the power supply for active current sharing. All power supplies configured in the system for n+n sharing will refer to this

bus voltage inorder to load share.

Voltage Range The range of this signal for active sharing will be up to 8.0 V, which corresponds to the maximum output current.

MIN

MAX

I

Voltage at 100% load, stand alone unit

4.75

5.25

Voltage at 50% load, stand-alone unit

2.375

2.625

Voltage at 0% load, stand-alone unit

0

0.3

I

SOURCE

Current that may be sourced by this pin

160 mA

SCL, SDA

VL Input logic level LOW

0.8 V

VH Input logic level HIGH

2.0 V

3.46 V

Note: All signal noise levels are below 400 mVpk-pk from 0-100 MHz.

A1

A0

Active Bus

Low

Low

None

Low

High

All “A”

High

Low

All “B”

High

High

None

FRU EEPROM Address

Write

0xA0h

Read

0xA1h

Write

0xA0h

Read

0xA1h