LTC1255 Datasheet

• 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

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

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.