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