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LT1161

更新时间： 2024-11-14 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI 驱动驱动器MOSFET驱动器
页数 文件大小 规格书
12页 190K
描述
受保护的四通道高端 MOSFET 驱动器

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中文翻译

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LT1161 数据手册

 浏览型号LT1161的Datasheet PDF文件第2页浏览型号LT1161的Datasheet PDF文件第3页浏览型号LT1161的Datasheet PDF文件第4页浏览型号LT1161的Datasheet PDF文件第5页浏览型号LT1161的Datasheet PDF文件第6页浏览型号LT1161的Datasheet PDF文件第7页 
LT1161  
Quad Protected High-Side  
MOSFET Driver  
U
FEATURES  
DESCRIPTIO  
■
8V to 48V Power Supply Range  
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.  
■
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  
Also included in each switch channel is a drain sense  
comparator that is used to sense switch current. When a  
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.  
■
■
Defaults to OFF State with Open Input  
■
Flowthrough Input to Output Pinout  
■
Available in 20-Lead DIP or SOL Package  
U
APPLICATIO S  
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.  
■
Industrial Control  
■
Avionics Systems  
■
Automotive Switches  
■
Stepper Motor and DC Motor Control  
■
Electronic Circuit Breaker  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
U
TYPICAL APPLICATIO  
24V  
+
50µF  
50V  
Switch Drop vs Load Current  
C
T
R
+
+
S
0.50  
0.45  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0
V
V
0.1µF  
0.1µF  
0.1µF  
0.01Ω  
DS1  
G1  
T1  
T2  
T3  
T4  
IRFZ34  
LOAD  
#1  
0.01Ω  
DS2  
G2  
IRFZ34  
0.1µF  
LT1161  
LOAD  
#2  
0.01Ω  
DS3  
G3  
IN1  
IN2  
IN3  
IN4  
INPUTS  
IRFZ34  
LOAD  
#3  
DS4  
G4  
0.01Ω  
GND  
GND  
IRFZ34  
0
1
2
3
4
5
LOAD  
#4  
LOAD CURRENT (A)  
1161 TA01  
1161 F01  
Figure 1. Protected Quad High-Side Switch  
1161fa  
1
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