Description
The ZXCT1032 is a high-side current monitor that drives a PMOS or PNP transistor to provide in-rush current limit and over-current protection. The ZXCT1032 includes a high accuracy high-side current monitor, a start-up timer and a re-try inhibit timer.
The ZXCT1032 takes the voltage developed across a current shunt resistor and compares this with an externally set trip point. It works in three modes:
• Linear soft-start
• Over-current detector
• Over-current disconnect/fuse

Features
• Accurate high-side current sensing
• User defined and dynamically adjustable trip current
• Load switch control
• Fault flag logic output
• User defined ramp and inhibit timers
• SO8 package
• Temperature range -40 to 85°C

Applications
• Electronic fuse
• Short circuit protected supply feed
• Hot swap
• Power over twisted pair