This IC targets dual voltage hot swap applications across the +2.5V to +3.3V (nominal) bias supply voltage range with a second lower voltage rail down to less than 1V where a circuit breaker response to an over current event is preferred. It features a charge pump for driving external N-Channel MOSFETs, accurate programmable circuit breaker current thresholds and delay output undervoltage monitoring and reporting and adjustable soft-start.

特性 Features

? Fast Circuit Breaker Quickly Responds to Overcurrent Fault Conditions

? Less than 1μs Response Time to Dead Short

? Programmable Circuit Breaker Level and Delay

? Two Levels of Overcurrent Detection Provide Fast Response to Varying Fault Conditions

? Overcurrent Circuit Breaker and Fault Isolation Functions

? Adjustable Circuit Breaker Threshold as Low as 20mV

? Adjustable Voltage Ramp-up for In-Rush Protection During Turn-On

? Rail Independent Control, Monitoring and Reporting I/O

? Dual Supply Hot Swap Power Distribution Control to <1V

? Charge Pump Allows the Use of N-Channel MOSFETs

? QFN Package:

- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline

- Near Chip Scale Package Footprint, Which Improves PCB Efficiency and has a Thinner Profile

? Pb-Free (RoHS Compliant)

Applications

? Power Supply Sequencing, Distribution and Control

? Hot Swap / Electronic Circuit Breaker Circuits