LTC4364 PDF预览

LTC4364

更新时间: 2025-07-19 14:58:11
品牌 Logo 应用领域
亚德诺 - ADI 二极管
页数 文件大小 规格书
29页 1396K
描述
具理想二极管的浪涌抑制器

LTC4364 数据手册

 浏览型号LTC4364的Datasheet PDF文件第2页浏览型号LTC4364的Datasheet PDF文件第3页浏览型号LTC4364的Datasheet PDF文件第4页浏览型号LTC4364的Datasheet PDF文件第5页浏览型号LTC4364的Datasheet PDF文件第6页浏览型号LTC4364的Datasheet PDF文件第7页 
LTC4364-1/LTC4364-2  
Surge Stopper with Ideal Diode  
FEATURES  
DESCRIPTION  
The LTC®4364 surge stopper with ideal diode controller  
protects loads from high voltage transients. It limits and  
regulates the output during an overvoltage event, such  
as load dump in automobiles, by controlling the voltage  
drop across an external N-channel MOSFET pass device.  
The LTC4364 also includes a timed, current limited circuit  
breaker. In a fault condition, an adjustable fault timer must  
expire before the pass device is turned off. The LTC4364-1  
latches off the pass device while the LTC4364-2 automati-  
cally restarts after a delay. The LTC4364 precisely moni-  
tors the input supply for overvoltage (OV) and undervolt-  
n
Wide Operating Voltage Range: 4V to 80V  
n
Withstands Surges Over 80V with V Clamp  
CC  
n
Adjustable Output Clamp Voltage  
n
Ideal Diode Controller Holds Up Output Voltage  
During Input Brownouts  
n
Reverse Input Protection to –40V  
n
Reverse Output Protection to –20V  
n
Overcurrent Protection  
n
Low 10μA Shutdown Current at 12V  
n
Adjustable Fault Timer  
n
0.1% Retry Duty Cycle During Faults (LTC4364-2)  
n
Available in 4mm × 3mm 14-Lead DFN, 16-Lead MSOP,  
and 16-Lead SO Packages  
age (UV) conditions. The external MOSFET is held off in  
undervoltage and auto-retry is disabled in overvoltage.  
n
AEC-Q100 Qualified for Automotive Applications  
An integrated ideal diode controller drives a second  
MOSFET to replace a Schottky diode for reverse input  
protection and output voltage holdup. The LTC4364 con-  
trols the forward voltage drop across the MOSFET and  
minimizes reverse current transients upon power source  
failure, brownout or input short.  
APPLICATIONS  
n
Automotive/Avionic Surge Protection  
n
Hot Swap/Live Insertion  
n
Redundant Supply ORing  
Output Port Protection  
All registered trademarks and trademarks are the property of their respective owners.  
n
TYPICAL APPLICATION  
Overvoltage Protector Regulates  
Output at 27V During Input Transient  
4A, 12V Overvoltage Output Regulator with Ideal Diode  
Withstands 200V 1ms Transient at VIN  
ꢐꢑꢒꢅ  
ꢋ ꢌ.ꢍꢎꢏ  
ꢋ ꢁ.ꢀꢒ  
ꢉꢊR  
ꢗꢔꢇ ꢆꢓꢘꢖꢉ ꢙꢖRꢚꢛ  
ꢆꢓ  
ꢔꢁꢇꢄꢅꢆꢇ  
V
OUT  
CLAMPED  
AT 27V  
10mΩ  
FDB33N25  
FDB3682  
V
IN  
12V  
+
ꢕꢔꢇ  
ꢕꢔꢇ  
383k  
22µF  
CMZ5945B  
68V  
ꢔꢜꢇ ꢈꢐꢒꢊꢘ ꢝꢒꢅꢞꢖꢙꢉꢒBꢐꢛꢟ  
ꢀꢁꢂꢃꢄꢅꢆꢇ  
6.8nF  
2.2k  
10Ω  
ꢑꢖꢉ  
ꢔꢁꢇꢄꢅꢆꢇ  
ꢠꢡꢌꢠ ꢉꢒꢁꢕꢢ  
102k  
V
HGATE SOURCE DGATE SENSE  
LTC4364  
OUT  
FB  
CC  
SHDN  
Ideal Diode Holds Up Output  
During Input Short  
UV  
6V  
4.99k  
UV  
90.9k  
10k  
ꢀꢓꢆ  
ꢀꢓꢆ  
ꢋ ꢌꢍꢎꢎꢏꢐ  
ꢋ ꢎ.ꢑꢊ  
ꢈꢉꢊꢄ  
ꢈꢉꢊꢄ  
OV  
60V  
ENOUT  
ENABLE  
OV  
ꢅꢒꢘꢔꢕ ꢙꢚꢉRꢕꢛꢄ  
ꢕꢉ ꢜꢒꢄ  
ꢅꢒ  
FAULT  
FLT  
ꢀꢎꢆꢃꢄꢅꢆ  
GND  
TMR  
436412 TA01a  
0.22µF  
ꢉꢔꢕꢘꢔꢕ ꢚꢛꢈꢄ ꢔꢘ  
ꢉꢔꢕ  
ꢀꢎꢆꢃꢄꢅꢆ  
ꢖꢍꢌꢖ ꢕꢊꢎꢀꢗ  
ꢀꢁꢂꢃꢄꢅꢆ  
Rev. B  
1
For more information www.analog.com  

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