DESCRIPTION
The LTC1255 dual high-side driver allows using low cost N-channel FETs for high-side industrial and automotive switching applications. An internal charge pump boosts the gate drive voltage above the positive rail, fully enhancing an N-channel MOS switch with no external components. Low power operation, with 12µA standby current, allows use in virtually all systems with maximum efficiency.
Included on-chip is independent overcurrent sensing to provide automatic shutdown in case of short circuits.
A time delay can be added to the current sense to prevent false triggering on high in-rush current loads.
The LTC1255 operates from 9V to 24V supplies and is well suited for industrial and automotive applications.
The LTC1255 is available in both an 8-pin DIP and an 8-pin SOIC.

FEATURES
■ Fully Enhances N-Channel Power MOSFETs
■ 12µA Standby Current
■ Operates at Supply Voltages from 9V to 24V
■ Short Circuit Protection
■ Easily Protected Against Supply Transients
■ Controlled Switching ON and OFF Times
■ No External Charge Pump Components
■ Compatible With Standard Logic Families
■ Available in 8-Pin SOIC

APPLICATIONS
■ Solenoid Drivers
■ DC Motor Drivers
■ Stepper Motor Drivers
■ Lamp Drivers/Dimmers
■ Relay Drivers
■ Low Frequency H-Bridge
■ P-Channel Switch Replacement