LT1161 Quad Protected High-Side MOSFET Driver

The LT1161 is a quad high-side gate driver allowing the use of low cost N-channel power MOSFETs for high-side switching applications. It has four independent switch channels, each containing a completely self-contained charge pump to fully enhance an N-channel MOSFET switch with no external components.

Also included in each switch channel is a drain sense comparator that is used to sense switch current. When preset current level is exceeded, the switch is turned off. The switch remains off for a period of time set by an external timing capacitor and then automatically attempts to restart. If the fault is still present, this cycle repeats until the fault is removed, thus protecting the MOSFET.

The LT1161 has been specifically designed for harsh operating environments such as industrial, avionics, and automotive applications where poor supply regulation and/or transients may be present. The device will not sustain damage from supply voltages of -15V to 60V

产品特点 Features

8V to 48V Power Supply Range
Protected from -15V to 60V Supply Transients
Fully Enhances N-Channel MOSFET Switches
Individual Short-Circuit Protection
Individual Automatic Restart Timers
Programmable Current Limit, Delay Time, and Auto-Restart Period
Voltage-Limited Gate Drive
Defaults to OFF State with Open Input
Flowthrough Input to Output Pinout
Available in 20-Lead DIP or SOL Package

参数

应用

Industrial Control
Avionics Systems
Automotive Switches
Stepper Motor and DC Motor Control
Electronic Circuit Breaker

典型应用图

LT1161 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) *
LT1161CN	PDIP	20	C	$4.00	$3.20
LT1161CN#PBF	PDIP	20	C	$4.00	$3.20
LT1161CSW	SO	20	C	$4.30	$3.50
LT1161CSW#PBF	SO	20	C	$4.30	$3.50
LT1161CSW#TR	SO	20	C		$3.60
LT1161CSW#TRPBF	SO	20	C		$3.60
LT1161IN	PDIP	20	I	$4.50	$3.60
LT1161IN#PBF	PDIP	20	I	$4.50	$3.60
LT1161ISW	SO	20	I	$4.80	$3.90
LT1161ISW#PBF	SO	20	I	$4.80	$3.90
LT1161ISW#TR	SO	20	I		$4.00
LT1161ISW#TRPBF	SO	20	I		$4.00

LT1161 数据手册及相关资料下载

数据手册(英文) : LT1161 - Quad Protected High-Side MOSFET Driver.PDF
应用指南 (英文) : AN66 - linear Technology Magazine Circuit Collection, Volume II.PDF
可靠性数据 : R337 Reliability Data .PDF