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LTC4441_15

更新时间： 2024-09-25 01:18:47
品牌 Logo 应用领域
凌特 - Linear 栅
页数 文件大小 规格书
16页 203K
描述
N-Channel MOSFET Gate Driver

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中文翻译

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LTC4441_15 数据手册

 浏览型号LTC4441_15的Datasheet PDF文件第2页浏览型号LTC4441_15的Datasheet PDF文件第3页浏览型号LTC4441_15的Datasheet PDF文件第4页浏览型号LTC4441_15的Datasheet PDF文件第5页浏览型号LTC4441_15的Datasheet PDF文件第6页浏览型号LTC4441_15的Datasheet PDF文件第7页 
LTC4441/LTC4441-1  
N-Channel MOSFET  
Gate Driver  
FeaTures  
DescripTion  
The LTC®4441/LTC4441-1 is an N-channel MOSFET gate  
driver that can supply up to 6A of peak output current.  
The chip is designed to operate with a supply voltage of  
up to 25V and has an adjustable linear regulator for the  
gate drive. The gate drive voltage can be programmed  
between 5V and 8V.  
n
6A Peak Output Current  
n
Wide V Supply Range: 5V to 25V  
IN  
n
n
n
n
n
n
n
n
Adjustable Gate Drive Voltage: 5V to 8V  
Logic Input Can Be Driven Below Ground  
30ns Propagation Delay  
Supply Independent CMOS/TTL Input Thresholds  
Undervoltage Lockout  
Low Shutdown Current: <12µA  
Overtemperature Protection  
Adjustable Blanking Time for MOSFET’s  
Current Sense Signal (LTC4441)  
Available in SO-8 and 10-Lead MSOP  
(Exposed Pad) Packages  
The LTC4441/LTC4441-1 features a logic threshold driver  
input. This input can be driven below ground or above the  
driver supply. A dual function control input is provided to  
disable the driver or to force the chip into shutdown mode  
with <12µA of supply current. Undervoltage lockout and  
overtemperature protection circuits will disable the driver  
output when activated. The LTC4441 also comes with an  
open-drain output that provides adjustable leading edge  
blanking to prevent ringing when sensing the source cur-  
rent of the power MOSFETs.  
n
applicaTions  
n
Power Supplies  
The LTC4441 is available in a thermally enhanced 10-lead  
MSOPpackage.TheLTC4441-1istheSO-8versionwithout  
the blanking function.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Protected by U.S. Patents including 6677210.  
n
Motor/Relay Control  
n
Line Drivers  
Charge Pumps  
n
Typical applicaTion  
D1  
L1  
MBR10100  
10µH 20A  
V
52V  
2A  
OUT  
V
IN  
RISE/FALL Time vs CLOAD  
6V TO 24V  
+
+
22µF  
25V  
X7R  
200  
180  
160  
140  
120  
100  
80  
C
OUT  
T
= 25°C  
A
R1  
330k  
R5  
DRV = 5V  
CC  
V
IN  
FB  
DRV  
CC  
C
VCC  
10µF  
X5R  
R2  
86.6k  
SHUTDOWN  
Q2 R6  
Si7370  
×2  
SGND  
OUT  
LTC4441  
EN/SHDN  
RISE TIME  
R3  
5mΩ  
R7  
LTC3803  
RBLANK  
IN  
60  
PGND  
SWITCHING  
CONTROLLER  
40  
FALL TIME  
BLANK  
GATE  
R4  
20  
100Ω  
+
SENSE  
0
0
5
10 15 20 25 30 35 40 45 50  
(nF)  
GND  
FB  
R8  
C
LOAD  
511k  
4441 TA01b  
R9  
8.06k  
4441 TA01a  
44411fa  
1
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