LTC1255

PRODUCTION

Dual 24V High-Side MOSFET Driver

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Overview

  • 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

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.

Applications

  • Solenoid Drivers
  • DC Motor Drivers
  • Stepper Motor Drivers
  • Lamp Drivers/Dimmers
  • Relay Drivers
  • Low Frequency H-Bridge
  • P-Channel Switch Replacement
LTC1255
Dual 24V High-Side MOSFET Driver
Dual 24V High-Side Switch with Overcurrent Protection Standby Supply Current Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

Data Sheet

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC1255
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Latest Discussions

3 Years Ago
Many defects occur while using LTC1255
View related discussion on EngineerZone®

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