ISL6436

FN9023 Rev 0.00

Page 3 of 13

Aug 10, 2001

Pin Descriptions

PIN NO.

DESIGNATOR

FUNCTION

DESCRIPTION

1

GND

IC Reference

2

VIN

Chip bias, Controlled

Supply Input,

Undervoltage lock-out

VIN provides chip bias voltage. At VIN < 2.5V chip functionality is disabled, FAULT latch

is cleared and floating and OUT is held low.

3, 4

ENABLE_1, 2 /

ENABLE_1,2

Channel Enable /

Enable Not Inputs

Enables / Disables switch.

5, 8

FAULT_2, 1

Channel 2, 1 Over

Current Fault Not

Indicator

Channel overcurrent fault indicator. FAULT floats and is disabled until VIN >2.5V. This

output is pulled low after the OC timeout period has expired and stays latched until

ENABLE is deasserted.

6, 7

OUT_2, 1

Channel 2,1 Controlled

Supply Output

Channel voltage output, connect to load to protect. Upon an OC condition IOUT is

current limited to 1A. Current limit response time is within 200

S. This output will remain

in current limit for a nominal 12ms before being latched off.