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LT6118 PDF预览

LT6118

更新时间: 2024-11-12 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI 放大器比较器
页数 文件大小 规格书
24页 343K
描述
电流检测放大器、基准和具 POR 功能的比较器

LT6118 数据手册

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LT6118  
Current Sense Amplifier,  
Reference and Comparator  
with POR  
FeaTures  
DescripTion  
The LT®6118 is a complete high side current sense device  
that incorporates a precision current sense amplifier, an  
integrated voltage reference and a latching comparator.  
The comparator latch functionality can be enabled or  
disabled and the comparator can be configured to reset  
upon power-on. The input and the open-drain output of  
the comparator are independent from the current sense  
amplifier. The comparator trip point and amplifier gain are  
configured with external resistors.  
n
Current Sense Amplifier  
– Fast Step Response: 500ns  
– Low Offset Voltage: 200µV Maximum  
– Low Gain Error: 0.2% Maximum  
n
Internal 400mV Precision Reference  
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Internal Comparator  
– Power-On Reset Capability  
– Fast Response Time: 500ns  
– Total Threshold Error: 1.25% Maximum  
n
Wide Supply Range: 2.7V to 60V  
Supply Current: 450µA  
TheoverallpropagationdelayoftheLT6118istypicallyonly  
1.4µs, allowing for quick reaction to overcurrent condi-  
tions. The 1MHz bandwidth allows the LT6118 to be used  
for error detection in critical applications such as motor  
control. The high threshold accuracy of the comparator,  
combined with the ability to latch the comparator, ensures  
the LT6118 can capture high speed events.  
n
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Specified for –40°C to 125°C Temperature Range  
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Available in 8-Lead MSOP and 8-Lead (2mm × 3mm)  
DFN Packages  
applicaTions  
n
Overcurrent and Fault Detection  
The LT6118 is fully specified for operation from –40°C to  
125°C, making it suitable for industrial and automotive  
applications. The LT6118 is available in the small 8-lead  
MSOP and 8-lead DFN packages.  
L, LT, LTC, LTM, TimerBlox, Linear Technology and the Linear logo are registered trademarks  
of Linear Technology Corporation. All other trademarks are the property of their respective  
owners.  
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Current Shunt Measurement  
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Battery Monitoring  
Motor Control  
Automotive Monitoring and Control  
Industrial Control  
n
n
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Typical applicaTion  
Response to Overcurrent Event  
Fast Acting Fault Protection with Power-On Reset  
0.1Ω  
IRF9640  
TO LOAD  
12V  
V
LOAD  
0.1µF  
1k  
100Ω  
SENSEHI SENSELO  
10V/DIV  
6.2V*  
24.9k  
0V  
+
V
V
OUTA  
OUT  
I
3.3V  
10k  
LOAD  
LE  
LT6118  
1k  
200mA/DIV  
100nF  
6.04k  
1.6k  
0mA  
V
OUTC  
5V/DIV  
250mA DISCONNECT  
2N2700  
OUTC  
INC  
0V  
250mA DISCONNECT  
V
6118 TA01a  
6118 TA01b  
5µs/DIV  
*CMH25234B  
6118f  
1
For more information www.linear.com/LT6118  

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