LM5110

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SNVS255A – MAY 2004 – REVISED MAY 2004

LM5110 Dual 5A Compound Gate Driver with Negative Output Voltage Capability

Check for Samples: LM5110

1

FEATURES

PACKAGE

2

•

Independently Drives Two N-Channel

•

SOIC-8

MOSFETs

•

WSON-10 (4 mm x 4 mm)

•

Compound CMOS and Bipolar Outputs Reduce

Output Current Variation

DESCRIPTION

The LM5110 Dual Gate Driver replaces industry

•

5A sink/3A Source Current Capability

standard gate drivers with improved peak output

•

Two Channels can be Connected in Parallel to

current and efficiency. Each “compound” output driver

Double the Drive Current

stage includes MOS and bipolar transistors operating

•

Independent Inputs (TTL Compatible)

in parallel that together sink more than 5A peak from

capacitive

loads.

Combining

the

unique

•

Fast Propagation Times (25 ns Typical)

characteristics of MOS and bipolar devices reduces

•

Fast Rise and Fall Times (14 ns/12 ns Rise/Fall

drive current variation with voltage and temperature.

with 2 nF Load)

Separate input and output ground pins provide

•

Dedicated Input Ground Pin (IN_REF) for Split

Negative Drive Capability allowing the user to drive

Supply or Single Supply Operation

MOSFET gates with positive and negative VGS

voltages.

The

gate

driver

control

inputs

are

•

referenced to a dedicated input ground (IN_REF).

Negative Relative to Input Ground

•

Available in Dual Non-inverting, Dual Inverting

and Combination Configurations

IN_REF. The ability to hold MOSFET gates off with a

negative VGS voltage reduces losses when driving

•

Shutdown Input Provides Low Power Mode

low threshold voltage MOSFETs often used as

•

Supply Rail Under-voltage Lockout Protection

synchronous

rectifiers.

When

driving

with

•

Pin-out Compatible with Industry Standard

conventional positive only gate voltage, the IN_REF

Gate Drivers

to

a

common

ground.

Under-voltage

lockout

TYPICAL APPLICATIONS

protection and a shutdown input pin are also

provided. The drivers can be operated in parallel with

•

Synchronous Rectifier Gate Drivers

inputs and outputs connected to double the drive

•

Switch-mode Power Supply Gate Driver

current capability. This device is available in the

•

Solenoid and Motor Drivers

SOIC-8

and

the

thermally-enhanced

WSON-10

packages.

•

Power Level Shifter

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.