LO

UVLO

HO

DRIVER

UVLO

LEVEL

SHIFT

HB

HS

DRIVER

VDD

VSS

HI

LI

LM5100A, LM5100B, LM5100C, LM5101A, LM5101B, LM5101C

www.ti.com

SNOSAW2P – SEPTEMBER 2006 – REVISED MARCH 2013

LM5100A/B/C

LM5101A/B/C 3A, 2A and 1A High Voltage High-Side and Low-Side Gate Drivers

Check for Samples: LM5100A, LM5100B, LM5100C, LM5101A, LM5101B, LM5101C

1

FEATURES

DESCRIPTION

The LM5100A/B/C and LM5101A/B/C High Voltage

2

•

Drives Both a High-side and Low-side N-

Gate Drivers are designed to drive both the high-side

Channel MOSFETs

and

the

low-side

N-Channel

MOSFETs

in

a

•

Independent High and Low Driver Logic Inputs

synchronous buck or a half-bridge configuration. The

•

Bootstrap Supply Voltage up to 118V DC

floating high-side driver is capable of operating with

supply voltages up to 100V. The “A” versions provide

•

Fast Propagation Times (25 ns Typical)

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

•

Drives 1000 pF Load with 8 ns Rise and Fall

provide 2A and 1A respectively. The outputs are

Times

independently controlled with CMOS input thresholds

•

Excellent Propagation Delay Matching (3 ns

(LM5100A/B/C)

or

TTL

input

thresholds

(LM5101A/B/C). An integrated high voltage diode is

typical)

provided to charge the high-side gate drive bootstrap

•

Supply Rail Under-voltage Lockout

capacitor. A robust level shifter operates at high

•

Low Power Consumption

speed while consuming low power and providing

•

Pin Compatible with HIP2100/HIP2101

clean level transitions from the control logic to the

high-side

gate

driver.

Under-voltage

lockout

is

provided on both the low-side and the high-side

TYPICAL APPLICATIONS

power rails. These devices are available in the

•

Current Fed Push-pull Converters

standard SOIC-8 pin, SO PowerPad-8 pin and the

•

Half and Full Bridge Power Converters

WSON-10

pin

packages.

The

LM5100C

and

LM5101C are also available in MSOP-PowerPad-8

•

Synchronous Buck Converters

package. The LM5101A is also available in WSON-8

•

Two Switch Forward Power Converters

pin package.

•

Forward with Active Clamp Converters

Package

•

SOIC-8

•

SO PowerPad-8

•

WSON-8 (4 mm x 4 mm)

•

WSON-10 (4 mm x 4 mm)

•

MSOP-PowerPad-8

Simplified Block Diagram

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

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 © 2006–2013, 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.