LO

UVLO

HO

DRIVER

UVLO

LEVEL

SHIFT

HB

HS

DRIVER

VDD

VSS

HI

LI

LM25101A, LM25101B, LM25101C

www.ti.com

SNVS859B – JULY 2012 – REVISED APRIL 2013

LM25101A/B/C 3A, 2A, and 1A 80V Half-Bridge Gate Drivers

Check for Samples: LM25101A, LM25101B, LM25101C

1

FEATURES

PACKAGES

2

•

Independent high and low driver logic inputs

•

SOIC-8

•

Bootstrap supply voltage up to 100V DC

•

SO Power Pad-8

•

Drives both a high-side and low-side N-

•

WSON-8 (4 mm x 4 mm)

Channel MOSFETs

•

WSON-10 (4 mm x 4 mm)

•

Fast propagation times (25 ns typical)

•

MSOP Power Pad-8

•

Drives 1000 pF load with 8 ns rise and fall

times

DESCRIPTION

The LM25101A/B/C High Voltage Gate Drivers are

•

Excellent propagation delay matching (3 ns

designed to drive both the high-side and the low-side

typical)

N-Channel MOSFETs in a synchronous buck or a

•

Supply rail under-voltage lockout

half-bridge configuration. The “A” versions provide a

•

Low power consumption

full 3A of gate drive while the “B” and “C” versions

provide 2A and 1A respectively. The outputs are

•

Pin compatible with HIP2100/HIP2101

independently controlled with TTL input thresholds.

An integrated high voltage diode is provided to

TYPICAL APPLICATIONS

charge the high-side gate drive bootstrap capacitor. A

•

Motor controlled drivers

robust level shifter operates at high speed while

consuming low power and providing clean level

•

Half and Full Bridge power converters

transitions from the control logic to the high-side gate

•

Synchronous buck converters

driver. Under-voltage lockout is provided on both the

•

Two switch forward power converters

low-side and the high-side power rails. These devices

•

Forward with Active Clamp converters

are available in the standard SOIC-8 pin, SO Power

Pad-8, WSON-8 (4 mm x 4 mm), WSON-10 (4 mm x

•

48V server power

4 mm), and MSOP Power Pad-8 packages.

•

Solar DC/DC and DC/AC converters

SIMPLIFIED BLOCK DIAGRAM

1

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2

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PRODUCTION DATA information is current as of publication date.

Copyright © 2012–2013, 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.