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LTC4370 PDF预览

LTC4370

更新时间： 2023-12-20 18:45:00
品牌 Logo 应用领域
亚德诺 - ADI 控制器二极管
页数 文件大小 规格书
20页 263K
描述
双电源二极管 “合路” 电流平衡控制器

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中文翻译

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LTC4370 数据手册

 浏览型号LTC4370的Datasheet PDF文件第2页浏览型号LTC4370的Datasheet PDF文件第3页浏览型号LTC4370的Datasheet PDF文件第4页浏览型号LTC4370的Datasheet PDF文件第5页浏览型号LTC4370的Datasheet PDF文件第6页浏览型号LTC4370的Datasheet PDF文件第7页 
LTC4370  
Two-Supply Diode-OR  
Current Balancing Controller  
FeaTures  
DescripTion  
The LTC®4370 is a two-supply current sharing controller  
which incorporates MOSFET ideal diodes. The diodes  
block reverse and shoot-through currents during start-up  
and fault conditions. Their forward voltage is adjusted to  
share the load currents between supplies. Unlike other  
sharing methods, neither a share bus nor trim pins on  
the supply are required.  
n
Shares Load Between Two Supplies  
n
Eliminates Need for Active Control of  
Input Supplies  
n
No Share Bus Required  
n
Blocks Reverse Current  
n
No Shoot-Through Current During Start-Up or Faults  
n
0V to 18V High Side Operation  
n
Enable Inputs  
The maximum MOSFET voltage drop can be set with a  
resistor. A fast gate turn-on reduces the load voltage  
droop during supply switchover. If the input supply fails  
or is shorted, a fast turn-off minimizes reverse current  
transients.  
n
MOSFET On Status Outputs  
n
Dual Ideal Diode Mode  
n
16-Lead DFN (4mm × 3mm) and MSOP Packages  
applicaTions  
The controller operates with supplies from 2.9V to 18V.  
For lower rail voltages, an external supply is needed at  
n
Redundant Power Supplies  
n
High Availability Systems and Servers  
the V pin. Enable inputs can be used to turn off the  
CC  
n
Telecom and Network Infrastructure  
MOSFET and put the controller in a low current state.  
Status outputs indicate whether the MOSFETs are on or  
off. The load sharing function can be disabled to turn the  
LTC4370 into a dual ideal diode controller.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks  
are the property of their respective owners. Protected by U.S. Patents, including 7920013 and  
8022679. Additional patent pending.  
Typical applicaTion  
12V, 10A Load Share  
Current Sharing Error vs Supply Difference  
SUM85N03-06P  
V
INA  
12V  
20  
15  
39nF*  
10  
EN1 CPO1  
V
GATE1  
IN1  
OUT1  
5
V
CC  
2mΩ  
2mΩ  
FETON1  
FETON2  
0.1µF  
NC  
OUT  
12V, 10A  
0
GND  
LTC4370  
–5  
RANGE  
OUT2  
–10  
–15  
–20  
EN2 CPO2  
V
GATE2 COMP  
IN2  
0.18µF  
39nF*  
–750 –500 –250  
0
250  
500  
750  
V
INB  
V
– V (mV)  
INB  
INA  
4370 TA01  
4370 TA01b  
12V  
SUM85N03-06P  
*OPTIONAL, FOR FAST TURN-ON  
4370f  
1
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