ISL6121 Ver la hoja de datos (PDF) - Intersil

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ISL6121

Single Supply Integrated Current Limiting Controller

Intersil 

Simplified Block Diagram

ISL6121

GND

OUT

VIN

POR

Q-PUMP

VIN

CURRENT AND TEMP.

MONITORING, GATE AND

OUTPUT CONTROL

LOGIC

OUT

OUT

EN

LOGIC

FAULT

Pin Descriptions

PIN #

1

SYMBOL

GND

FUNCTION

IC GND Reference

DESCRIPTION

2, 3

VIN

Chip Bias, Controlled

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

Supply Input, Undervoltage is cleared and floating. OUT is pulled and held low.

Lock-Out

4

5

6, 7, 8

ENABLE /

ENABLE

FAULT

VOUT

Enable / Enable Not Input Enables chip when VIN and ENABLE > 2.5V or ENABLE < 0.6V

Over Current Fault Indicator Overcurrent fault indicator.FAULT is disabled for 12ms after turn-on. This output is pulled

low to GND after the current limit time-out period has expired and stays latched until

ENABLE is deasserted.

Controlled Supply Output

Voltage output, connect to load to protect. Upon an overcurrent condition VOUT is current

limited to 2A. Current limit response time is within 200µS. This output will remain in current

limit for approximately 12ms before being latched off.

2

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