LTC1156 Quad High Side Micropower MOSFET Driver with Internal Charge Pump

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

产品特点 Features

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

参数

应用

Laptop Computer Power Switching
SCSI Termination Power Switching
Cellular Telephone Power Management
P-Channel Switch Replacement
Battery Charging and Management
Low Frequency H-Bridge Driver
Stepper Motor and DC Motor Control

典型应用图

LTC1156 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1156CN	PDIP	16	C	$5.80	$4.75
LTC1156CN#PBF	PDIP	16	C	$5.80	$4.75
LTC1156CSW	SO	16	C	$6.25	$5.15
LTC1156CSW#PBF	SO	16	C	$6.25	$5.15
LTC1156CSW#TR	SO	16	C		$5.21
LTC1156CSW#TRPBF	SO	16	C		$5.21

LTC1156 数据手册及相关资料下载

数据手册(英文) : LTC1156 - High-Side Micropower MOSFET Driver.PDF
应用指南 (英文) : AN53 - Micropower High Side MOSFET Drivers.PDF
可靠性数据 : R294 Reliability Data .PDF