DS3000PE Data Sheet

Control and Status Signals

Input Signals

PSON

Active LOW signal which enables/disables the main output. Pulling this signal LOW will turn-on the main output.

Recommended pull-up resistor to 12 VSB is 8.2 k with a 3.0 k pull-down to ground. A 100 pF decoupling capacitor is also recommended.

MIN

MAX

V

IL

Input logic level LOW

0.8 V

V

IH

Input logic level HIGH

2.0 V

5.0 V

I

SOURCE

Current that may be sourced by this pin

2 mA

I

SINK

Current that may be sunk by this pin at low state

0.5 mA

PSKIL

First break/last mate active LOW signal which enables/disables the main output. This signal will have to be pulled to ground at the system side with a 220 ohm

resistor. A 100 pF decoupling capacitor is also recommended.

MIN

MAX

V

IL

Input logic level LOW

0.8 V

V

IH

Input logic level HIGH

2.0 V

5.0 V

I

SOURCE

Current that may be sourced by this pin

2 mA

I

SINK

Current that may be sunk by this pin at low state

0.5 mA

A0, A1, A2

MIN

MAX

Internal pull-ups to 3.3V.

It is recommended for the system to have pull-ups and

decoupling on the address lines for better noise immunity.

R = 22 k ohm

C = 47 pF

V

IL

Input logic level LOW

0.8 V

V

IH

Input logic level HIGH

2.0 V

5.0 V

I

SOURCE

Current that may be sourced by this pin

4 mA

I

SINK

Current that may be sunk by this pin

4 mA

Output Signals

ACOK

Signal used to indicate the presence of AC input to the power supply. A logic level HIGH will indicate that the AC input to the power supply is within the operating

range while a logic level LOW will indicate that AC has been lost.

This is an open collector/drain output. This pin is pulled high by a 1.0 k ohm resistor connected to 3.3 V inside the power supply.

It is recommended that this pin be connected to a 100 pF decoupling capacitor and pulled down by a 100 k ohm resistor.

MIN

MAX

V

IL

Output logic level LOW

0.6 V

V

IH

Output logic level HIGH

2.0 V

5.0 V

I

SOURCE

Current that may be sourced by this pin

3.3 mA

I

SINK

Current that may be sunk by this pin at low state

0.7 mA