DS1100SDC Data Sheet

Control and Status Signals

Output Signals

PS_PRESENT_L

Signal used to indicate to the system that a power supply is inserted in the power bay. This pin is shorted to the standby return in the power supply.

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.

PS_INTERRUPT_L

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. Recommended pull-up resis-

tor 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

4 mA

I

SINK

Current that may be sunk by this pin at low state

4 mA

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

Input logic level LOW

7.75

8.25

Voltage at 50% load, stand-alone unit

3.85

4.15

Voltage at 0% load, stand-alone unit

0

0.3

I

SOURCE

Current that may be sourced by this pin

160 mA

SCL, SDA

100 pF decoupling capacitor at the system side.

VL

Input logic level LOW

0.8 V

VH

Input logic level HIGH

2.0 V

5.0 V

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

Ordering Information

Model Number

Nominal Main Output

Standby Output

Airflow Direction

DS1100SDC-3

12 V

12 V @ 3A

Std (forward)

DS1100SDC-3-001

12 V

12 V @ 3A

1

Derating may apply