Datasheet > LTC4442EMS8E-TRPBF

LTC4442EMS8E-TRPBF

更新时间： 2024-01-15 12:42:43

品牌	Logo	应用领域
凌特 - Linear		驱动器
页数	文件大小	规格书
12页	159K
描述
High Speed Synchronous N-Channel MOSFET Drivers

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数据手册

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LTC4442/LTC4442-1

High Speed Synchronous

N-Channel MOSFET Drivers

FEATURES

DESCRIPTION

The LTC^®4442 is a high frequency gate driver designed

to drive two N-channel MOSFETs in a synchronous buck

DC/DC converter topology. The powerful driver capabil-

ity reduces switching losses in MOSFETs with high gate

capacitance.

■

Wide V Range: 6V to 9.5V

■

38V Maximum Input Supply Voltage

■

Adaptive Shoot-Through Protection

■

2.4A Peak Pull-Up Current

5A Peak Pull-Down Current

■

8ns TG Fall Time Driving 3000pF Load

The LTC4442 features a separate supply for the input

logic to match the signal swing of the controller IC. If the

input signal is not being driven, the LTC4442 activates a

shutdown mode that turns off both external MOSFETs.

The input logic signal is internally level-shifted to the

bootstrapped supply, which may function at up to 42V

above ground.

■

12ns TG Rise Time Driving 3000pF Load

■

Separate Supply to Match PWM Controller

■

Drives Dual N-Channel MOSFETs

■

Undervoltage Lockout

■

Thermally Enhanced MSOP Package

APPLICATIONS

The LTC4442 contains undervoltage lockout circuits on

both the driver and logic supplies that turn off the external

MOSFETs when an undervoltage condition is present.

The LTC4442 and LTC4442-1 have different undervoltage

lockout thresholds to accommodate a wide variety of ap-

plications.Anadaptiveshoot-throughprotectionfeatureis

also built-in to prevent power loss resulting from MOSFET

cross-conduction current.

■

Distributed Power Architectures

High Density Power Modules

■

The LTC4442/LTC4442-1 are available in the thermally

enhanced 8-lead MSOP package.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

TYPICAL APPLICATION

LTC4442 Driving 3000pF Capacitive Loads

Synchronous Buck Converter Driver

INPUT (IN)

5V/DIV

32V

BOOST

LTC4442

BOTTOM

GATE (BG)

5V/DIV

LOGIC

TOP GATE

(TG-TS)

5V/DIV

OUT

PWM

GND

4442 TA01a

4442 TA01b

10ns/DIV

4442fa

12 3 4 5 6 7...12

中文翻译

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与LTC4442EMS8E-TRPBF相关器件

型号	品牌	获取价格	描述	数据表
LTC4442IMS8E-1	Linear	获取价格	IC,DUAL MOSFET DRIVER,CMOS,TSSOP,8PIN,PLASTIC
LTC4442IMS8E-1#PBF	Linear	获取价格	LTC4442/LTC4442-1 - High Speed Synchronous N-Channel MOSFET Drivers; Package: MSOP; Pins:
LTC4442IMS8E-1#TR	Linear	获取价格	IC,DUAL MOSFET DRIVER,CMOS,TSSOP,8PIN,PLASTIC
LTC4442IMS8E-1#TRPBF	Linear	获取价格	LTC4442/LTC4442-1 - High Speed Synchronous N-Channel MOSFET Drivers; Package: MSOP; Pins:
LTC4442IMS8E-1-PBF	Linear	获取价格	High Speed Synchronous N-Channel MOSFET Drivers
LTC4442IMS8E-1-TRPBF	Linear	获取价格	High Speed Synchronous N-Channel MOSFET Drivers
LTC4442IMS8E-PBF	Linear	获取价格	High Speed Synchronous N-Channel MOSFET Drivers
LTC4442IMS8E-TRPBF	Linear	获取价格	High Speed Synchronous N-Channel MOSFET Drivers
LTC4443	Linear	获取价格	High Speed Synchronous N-Channel MOSFET Drivers
LTC4443-1	Linear	获取价格	High Speed Synchronous N-Channel MOSFET Drivers

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