Rev. 01.11.08

DS1200

3 of 4

CONTROL AND STATUS SIGNALS

Input Signals

PSON_L

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

A 100pF decoupling capacitor is recommended at the system side.

MIN

MAX

VIL Input logic level LOW

0.8V

VIH Input logiv level HIGH

2.0V

5.0V

ISOURCE Current that may be sourced by this pin

2mA

ISINK Current that may be sunk by this pin at low state

0.5mA

PSKILL_L

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 220ohm resis-

tor. A 100pF decoupling capacitor is also recommended.

MIN

MAX

VIL Input logic level LOW

0.8V

VIH Input logic level HIGH

2.0V

5.0V

ISOURCE Current that may be sourced by this pin

2mA

ISINK Current that may be sunk by this pin at low state

0.5mA

VSENSE+, VSENSE-, STBY_VSENSE+

VSENSE+, VSENSE-, and STBY_VSENSE+ lines are the remote sense lines for regulation. Each line will compensate for a maximum of 100mV.

Output Signals

ACOK_L

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

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

This is an open collector/drain output. This pin is pulled high by a 1.0kohm resistor connected to 3.3V inside the power supply. It is recommended that this pin be

connected to a 100pF decoupling capacitor and pulled down by a 100kohm resistor at the system side.

MIN

MAX

VIL Output logic level LOW

0.6V

VIH Output logic level HIGH

2.0V

5.0V

ISOURCE Current that may be sourced by this pin

3.3mA

ISINK Current that may be sunk by this pin at low state

0.7mA

PWR_GOOD / PWOK_H

"Signal used to indicate that main output voltage is within regulation range. The PWR_GOOD/PWOK_H signal will be driven HIGH when the output voltage is valid and

will be driven LOW when the output falls below the under-voltage threshold.

This signal also gives an advance warning when there is an impending power loss due to loss of AC input or system shutdown request. More details in the Timing

Section. This is an open collector/drain output. This pin is pulled high by a 1.0kohm resistor connected to 3.3V inside the power supply. It is recommended that this

pin be connected to a 100pF decoupling capacitor and pulled down by a 10kohm resistor."

MIN

MAX

VIL Output logic level LOW

0.8V

VIH Output logic level HIGH

2.0V

5.0V

ISOURCE Current that may be sourced by this pin

3.3mA

ISINK Current that may be sunk by this pin

0.7mA

Embedded Power for

Business-Critical Continuity

Electrical Specifications

Rev. 09.26.13

DS1200HE

3 of 9