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LTC4223CDHD-1TRPBF PDF预览

LTC4223CDHD-1TRPBF

更新时间： 2024-11-12 04:11:47
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
24页 275K
描述
Dual Supply Hot Swap Controller for Advanced Mezzanine Card

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中文翻译

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LTC4223CDHD-1TRPBF 数据手册

 浏览型号LTC4223CDHD-1TRPBF的Datasheet PDF文件第2页浏览型号LTC4223CDHD-1TRPBF的Datasheet PDF文件第3页浏览型号LTC4223CDHD-1TRPBF的Datasheet PDF文件第4页浏览型号LTC4223CDHD-1TRPBF的Datasheet PDF文件第5页浏览型号LTC4223CDHD-1TRPBF的Datasheet PDF文件第6页浏览型号LTC4223CDHD-1TRPBF的Datasheet PDF文件第7页 
LTC4223-1/LTC4223-2  
Dual Supply Hot Swap  
Controller for Advanced  
Mezzanine Card  
FEATURES  
DESCRIPTION  
The LTC®4223 positive voltage Hot SwapTM controller  
allows a board to be safely inserted and removed from  
a live AMC or MicroTCA backplane. It controls the main  
12V supply with an external N-channel MOSFET and the  
3.3V auxiliary supply with an integrated switch. The 12V  
output ramp rate is adjustable and includes inrush current  
limiting. The 12V output is also protected against short  
circuit faults with a fast acting current limit and a 5%  
accurate timed circuit breaker. The 3.3V output includes  
both soft start and overcurrent protection.  
■
Allows Safe Insertion into Live AMC or MicroTCA  
Backplane  
■
Controls 12V Main and 3.3V Auxiliary Supplies  
■
Limits Peak Fault Current in ≤1μs  
Adjustable Current Limit with Circuit Breaker  
Integrated 0.3Ω AUX Switch  
High Side Current Sense  
Gate Drive for External N-Channel MOSFET  
Adjustable Response Time for Overcurrent Protection  
Adjustable Supply Voltage Power-Up Rate  
Thermal Shutdown Protection  
LTC4223-1: Latch Off After Fault  
LTC4223-2: Automatic Retry After Fault  
16-Lead SSOP and 5mm × 4mm DFN Packages  
■
■
■
■
■
■
■
The LTC4223 features a current monitor output for the  
12V supply, and reports fault and power-good status for  
both supplies. It also detects card presence and allows  
independent control of the 12V and auxiliary 3.3V sup-  
ply outputs. The LTC4223-1 features a latch-off circuit  
breaker, while the LTC4223-2 provides automatic retry  
after a fault.  
■
■
■
APPLICATIONS  
■
Advanced Mezzanine Card, MicroTCA Systems  
■
Workstations and Server I/O  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
■
Telecom Networks  
TYPICAL APPLICATION  
Advanced Mezzanine Card Application  
Normal Power-Up Waveform  
6mΩ  
Si7336ADP  
12V  
7.4A  
EN  
5V/DIV  
12V  
AUXOUT  
5V/DIV  
15nF  
10Ω  
47Ω  
12V  
12V  
12V  
12V  
OUT  
12V  
OUT  
5V/DIV  
IN  
SENSE  
GATE  
3.3V  
150mA  
3.3V  
AUXIN  
AUXOUT  
AUXPGOOD  
51Ω  
330nF  
5V/DIV  
V
CC  
12PGOOD  
5V/DIV  
LTC4223-1/LTC4223-2  
AUXON  
12ON  
AUXPGOOD  
12PGOOD  
FAULT  
20ms/DIV  
422312 TA01b  
IPMC  
12IMON  
ADC  
EN  
GND  
TIMER  
422312 TA01a  
0.1μF  
CARRIER MODULE  
CONNECTOR CONNECTOR  
422312f  
1
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