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LTC4219IDHC-5-PBF PDF预览

LTC4219IDHC-5-PBF

更新时间： 2024-11-12 11:55:07
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
16页 198K
描述
5A Integrated Hot Swap Controller

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LTC4219IDHC-5-PBF 数据手册

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LTC4219  
5A Integrated  
Hot Swap Controller  
FEATURES  
DESCRIPTION  
The LTC®4219 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  
Swapcontroller,powerMOSFETandcurrentsenseresistor  
in a single package for small form factor applications.  
n
Small Footprint  
33mΩ MOSFET with R  
n
SENSE  
n
Available in Preset 12V and 5V Versions  
Adjustable, 10% Accurate Current Limit  
Current and Temperature Monitor Outputs  
Overtemperature Protection  
Adjustable Current Limit Timer Before Fault  
Power Good and Fault Outputs  
Adjustable Inrush Current Control  
n
n
n
n
n
n
n
The LTC4219 provides separate inrush current control  
and a 10% accurate 5.6A 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  
and a MOSFET temperature monitor output. Thermal limit  
and power good monitoring are also provided. The power  
good detection level and foldback current limit profile are  
internallypresetfor5V(LTC4219-5)and12V(LTC4219-12)  
applications.  
Available in 16-Lead 5mm × 3mm DFN Packages  
APPLICATIONS  
n
RAID Systems  
n
Server I/O Cards  
n
Industrial  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot  
Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of  
their respective owners.  
TYPICAL APPLICATION  
12V, 5A Card Resident Application  
Power-Up Waveforms  
V
12V  
5A  
OUT  
V
OUT  
12V  
DD  
12V  
10k  
V
IN  
10V/DIV  
+
330μF  
LTC4219DHC-12  
12V  
10k  
I
IN  
0.1A/DIV  
EN1  
PG  
V
OUT  
EN2  
FLT  
10V/DIV  
I
TIMER  
SET  
PG  
10V/DIV  
INTV  
I
ADC  
CC  
MON  
4219 TA01b  
20ms/DIV  
0.1μF  
GND  
20k  
4219 TA01a  
4219f  
1
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