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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LM5107

SNVS333E – NOVEMBER 2004 – REVISED MARCH 2016

LM5107 100V / 1.4A Peak Half Bridge Gate Driver

1

1 Features

1

•

Drives Both a High Side and Low Side N-Channel

MOSFET

•

High Peak Output Current (1.4A Sink / 1.3A

Source)

•

Independent TTL compatible inputs

•

Integrated Bootstrap Diode

•

Bootstrap Supply Voltage to 118V DC

•

Fast Propagation Times (27 ns Typical)

•

Drives 1000 pF Load with 15ns Rise and Fall

Times

•

Excellent Propagation Delay Matching (2 ns

Typical)

•

Supply Rail Under-Voltage Lockout

•

Low Power Consumption

•

Pin Compatible with ISL6700

•

Packages:

–

SOIC

–

WSON (4 mm x 4 mm)

2 Applications

•

Current Fed Push-Pull Converters

•

Half and Full Bridge Power Converters

•

Solid State Motor Drives

•

Two Switch Forward Power Converters

3 Description

The LM5107 is a low cost high voltage gate driver,

designed to drive both the high side and the low side

N-Channel MOSFETs in a synchronous buck or a

half bridge configuration. The floating high-side driver

is capable of working with rail voltages up to 100V.

The outputs are independently controlled with TTL

compatible input thresholds. An integrated on chip

high voltage diode is provided to charge the high side

gate drive bootstrap capacitor. A robust level shifter

technology operates at high speed while consuming

low power and providing clean level transitions from

the control input logic to the high side gate driver.

Under-voltage lockout is provided on both the low

side and the high side power rails. The device is

available in the SOIC and the thermally enhanced

WSON packages.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM5107

SOIC (8)

4.90 mm × 3.91 mm

WSON (8)

4.00 mm × 4.00 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Simplified Block Diagram