The HIP1012 is a HOT SWAP dual supply power distribution controller. Two external N-Channel MOSFETs are driven to distribute power while providing load fault isolation.

At turn-on, the gate of each external N-Channel MOSFET is charged with a 10μA current source. Capacitors on each gate (see the Typical Application Diagram), create a programmable ramp (soft turn-on) to control inrush currents. A built in charge pump supplies the gate drive for the 12V supply N-Channel MOSFET switch.

Features

? HOT SWAP Dual Power Distribution Control for +5V and +12V or +5V and +3.3V

? Provides Fault Isolation

? Programmable Current Regulation Level

? Programmable Time Out

? Charge Pump Allows the Use of N-Channel MOSFETs

? Power Good and Over Current Latch Indicators

? Enhanced Over Current Sensitivity Available

? Redundant Power On Controls

? Adjustable Turn-On Ramp

? Protection During Turn-On

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

? Less Than 1μs Response Time to Dead Short

? 3μs Response Time to 200 Current Overshoot

Applications

? Redundant Array of Independent Disks (RAID) System

? Power Distribution Control

? Hot Plug?, Hot Swap Components