LTC4444
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LTC4444

High Voltage Synchronous N-Channel MOSFET Driver

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Info: : PRODUCTION tooltip
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Part Details
Part Models 14
1ku List Price Starting From $2.07
Features
  • AEC-Q100 Qualified for Automotive Applications
  • Bootstrap Supply Voltage to 114V
  • Wide VCC 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
Additional Details
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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
VCC UV+ 6.6V 6.6V 4V
VCC 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

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

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Filter by Model

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Part Models

Product Lifecycle

PCN

Feb 3, 2020

- 20_0128

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Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC4444EMS8E#PBF

PRODUCTION

LTC4444EMS8E#TRPBF

PRODUCTION

LTC4444EMS8E#WPBF

PRODUCTION

LTC4444EMS8E#WTRPBF

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LTC4444HMS8E#PBF

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LTC4444HMS8E#TRPBF

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LTC4444HMS8E#WPBF

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Software & Part Ecosystem

Software & Part Ecosystem

Tools & Simulations

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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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