LTC4444

PRODUCTION

High Voltage Synchronous N-Channel MOSFET Driver

Data Sheet (Rev. C) Product Selection Table

Part Models: 14
1ku List Price: Starting From $2.07

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Overview

AEC-Q100 Qualified for Automotive Applications
Bootstrap Supply Voltage to 114V
Wide V_CC Voltage: 7.2V to 13.5V
Adaptive Shoot-Through Protection
2.5A Peak TG Pull-Up Current
3A Peak BG Pull-Up Current
1.2Ω TG Driver Pull-Down
0.55Ω BG Driver Pull-Down

5ns TG Fall Time Driving 1nF Load
8ns TG Rise Time Driving 1nF Load
3ns BG Fall Time Driving 1nF Load
6ns BG Rise Time Driving 1nF Load
Drives Both High and Low Side N-Channel MOSFETs
Undervoltage Lockout
Thermally Enhanced 8-Lead MSOP Package

The LTC4444 is a high frequency high voltage gate driver that drives two N-channel MOSFETs in a synchronous DC/DC converter with supply voltages up to 100V. This powerful driver reduces switching losses in MOSFETs with high gate capacitance.

The LTC4444 is configured for two supply-independent inputs. The high side input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 114V above ground.

The LTC4444 contains undervoltage lockout circuits that disable the external MOSFETs when activated. Adaptive shoot-through protection prevents both MOSFETs from conducting simultaneously.

For a similar driver in this product family, please refer to the chart below.


Parameter	LTC4444	LTC4446	LTC4444-5
Shoot-Through Protection	Yes	No	Yes
Absolute Max TS	100V	100V	100V
MOSFET Gate Drive	7.2V to 13.5V	7.2V to 13.5V	4.5V to 13.5V
V_CC UV⁺	6.6V	6.6V	4V
V_CC UV^–	6.15V	6.15V	3.55V

Applications

Distributed Power Architectures
Automotive Power Supplies
High Density Power Modules
Telecommunications

Part Models: 14
1ku List Price: Starting From $2.07

Documentation

Data Sheet 1

LTC4444: High Voltage Synchronous N-Channel MOSFET Driver Data Sheet (Rev.C) 01/05/2011

Reliability Data 1

R419 Reliability Data 03/22/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4444EMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444EMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444EMS8E#WPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444EMS8E#WTRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444HMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444HMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444HMS8E#WPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444HMS8E#WTRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444IMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444IMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444IMS8E#WPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444IMS8E#WTRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444MPMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4444MPMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC4444EMS8E#PBF	PRODUCTION
LTC4444EMS8E#TRPBF	PRODUCTION
LTC4444EMS8E#WPBF	PRODUCTION
LTC4444EMS8E#WTRPBF	PRODUCTION
LTC4444HMS8E#PBF	PRODUCTION
LTC4444HMS8E#TRPBF	PRODUCTION
LTC4444HMS8E#WPBF	PRODUCTION
LTC4444HMS8E#WTRPBF	PRODUCTION
LTC4444IMS8E#PBF	PRODUCTION
LTC4444IMS8E#TRPBF	PRODUCTION
LTC4444IMS8E#WPBF	PRODUCTION
LTC4444IMS8E#WTRPBF	PRODUCTION
LTC4444MPMS8E#PBF	PRODUCTION
LTC4444MPMS8E#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4444
LTC4444-5

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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