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LTC4232_15

更新时间： 2024-01-15 18:32:19
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 738K
描述
5A Integrated Hot Swap Controller

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中文翻译

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LTC4232_15 数据手册

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LTC4232  
5A Integrated Hot Swap  
Controller  
FEATURES  
DESCRIPTION  
The LTC®4232 is an integrated solution for Hot Swap™  
applications that allows a board to be safely inserted and  
removed from a live backplane. The part integrates a Hot  
Swap controller, power MOSFET and current sense resis-  
tor in a single package for small form factor applications.  
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Small Footprint  
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33mΩ MOSFET with R  
SENSE  
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Wide Operating Voltage Range: 2.9V to 15V  
Adjustable, 10% Accurate Current Limit  
Current and Temperature Monitor Outputs  
Overtemperature Protection  
Adjustable Current Limit Timer Before Fault  
Power Good and Fault Outputs  
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The LTC4232 provides separate inrush current control  
and a 10% accurate 5A current limit with foldback cur-  
rent limiting. The current limit threshold can be adjusted  
dynamically using an external pin. Additional features  
include a current monitor output that amplifies the sense  
resistor voltage for ground referenced current sensing  
andaMOSFETtemperaturemonitoroutput.Thermallimit,  
overvoltage, undervoltage and power good monitoring  
are also provided.  
Adjustable Inrush Current Control  
2% Accurate Undervoltage and Overvoltage Protection  
Pin Compatible with LTC4217 (DFN Package Only)  
Available in 16-Lead 5mm × 3mm DFN Package  
APPLICATIONS  
TheLTC4232-1(separatedatasheet)allowsfasterturn-on  
than the LTC4232 by providing 16ms debounce delay and  
external control of the GATE ramp rate.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. Hot Swap and PowerPath are trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners.  
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RAID Systems  
Server I/O Cards  
Industrial  
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TYPICAL APPLICATION  
12V, 5A Card Resident Application with Auto-Retry  
Power-Up Waveforms  
V
12V  
5A  
OUT  
V
OUT  
FB  
12V  
DD  
*
V
IN  
10V/DIV  
+
CONTACT  
BOUNCE  
150k  
20k  
330µF  
LTC4232DHC  
107k  
UV  
I
IN  
10k  
0.1A/DIV  
FLT  
5.23k  
10k  
V
OUT  
OV  
GATE  
PG  
10V/DIV  
TIMER  
I
PG  
10V/DIV  
SET  
I
INTV  
CC  
ADC  
MON  
1µF  
GND  
4232 TA01b  
20k  
25ms/DIV  
4232 TA01a  
*DIODES INC. SMAJ22A  
4232fb  
1
For more information www.linear.com/LTC4232  
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