特点
No External Charge Pump Components
Fully Enhances N-Channel Power MOSFETs
16 Microamps Standby Current
95 Microamps ON Current
Wide Power Supply Range 4.5V to 18V
Controlled Switching ON and OFF Times
Replaces P-Channel High Side Switches
Compatible with Standard Logic Families
Available in 16-pin SOL Package
典型应用
典型应用
描述
Please download the following Change Notice concerning SOIC, PDIP and CERDIP Wide Body Packages. sntopm.pdf
The LTC1156 quad High side gate driver allows using low cost N-channel FETs for high side 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. Micropower opera-tion, with 16μA standby current and 95μA operating current, allows use in virtually all systems with maximum efficiency.
Included on chip is independent over-current 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 LTC1156 operates off of a 4.5V to 18V supply and is well suited for battery-powered applications, particularly where micropower "sleep" operation is required.
The LTC1156 is available in both 16-pin DIP and 16-pin SOL packages.