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LTC4440-5 PDF预览

LTC4440-5

更新时间： 2023-12-20 18:45:01
品牌 Logo 应用领域
亚德诺 - ADI 栅极驱动驱动器
页数 文件大小 规格书
14页 260K
描述
高速、高电压、高端栅极驱动器

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中文翻译

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LTC4440-5 数据手册

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LTC4440-5  
High Speed, High Voltage,  
High Side Gate Driver  
FeaTures  
DescripTion  
The LTC®4440-5 is a high frequency high side N-channel  
MOSFET gate driver that is designed to operate in appli-  
n
Wide Operating V Range: Up to 60V  
IN  
n
Rugged Architecture Tolerant of 80V V Transients  
IN  
n
Powerful 1.85Ω Driver Pull-Down (with 6V Supply)  
cations with V voltages up to 60V. The LTC4440-5 can  
IN  
n
Powerful 1.1A Peak Current Driver Pull-Up  
also withstand and continue to function during 80V V  
IN  
transients. The powerful driver capability reduces switch-  
ing losses in MOSFETs with high gate capacitances. The  
LTC4440-5’s pull-up has a peak output current of 1.1A and  
its pull-down has an output impedance of 1.85Ω.  
(with 6V Supply)  
n
7ns Fall Time Driving 1000pF Load  
n
10ns Rise Time Driving 1000pF Load  
n
Drives Standard Threshold MOSFETs  
n
TTL/CMOS Compatible Inputs with Hysteresis  
The LTC4440-5 features supply independent TTL/CMOS  
compatible input thresholds with 350mV of hysteresis.  
The input logic signal is internally level-shifted to the  
bootstrapped supply, which may function at up to 95V  
above ground.  
n
Input Thresholds are Independent of Supply  
n
Undervoltage Lockout  
n
Low Profile (1mm) SOT-23 (ThinSOT™) and  
Thermally Enhanced 8-Pin MSOP Packages  
The LTC4440-5 is optimized for driving (5V) logic level  
FETs and contains an undervoltage lockout circuit that  
disables the external MOSFET when activated.  
applicaTions  
n
Telecommunications Power Systems  
n
Distributed Power Architectures  
The LTC4440-5 is available in the low profile (1mm)  
SOT-23 or a thermally enhanced 8-lead MSOP package.  
n
Server Power Supplies  
n
High Density Power Modules  
PARAMETER  
LTC4440-5  
60V  
LTC4440A-5  
80V  
LTC4440  
80V  
n
General Purpose Low-Side Driver  
Max Operating TS  
Absolute Max TS  
L, LT, LTC, LTM, Linear Technology, the Linear logo and PolyPhase are registered trademarks  
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents, including 6677210.  
80V  
100V  
100V  
MOSFET Gate Drive  
4V to 15V  
3.2V  
4V to 15V  
3.2V  
8V to 15V  
6.3V  
+
V
V
UV  
UV  
CC  
CC  
–
3.04V  
3.04V  
6.0V  
Typical applicaTion  
Synchronous Phase-Modulated Full-Bridge Converter  
LTC4440-5 Driving a 1000pF Capacitive Load  
V
IN  
36V TO 60V  
V
CC  
4V TO 15V  
LTC4440-5  
TG-TS  
2V/DIV  
V
BOOST  
TG  
CC  
INP  
GND  
TS  
INP  
2V/DIV  
LTC4440-5  
V
BOOST  
TG  
CC  
•
•
LTC3722-1  
4440-5 TA02  
INP  
50ns/DIV  
V
= BOOST-TS = 5V  
GND  
TS  
CC  
4440 TA01  
44405fb  
1
For more information www.linear.com//LTC4440-5  
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