LM5035_15 Datasheet, PDF(1/39 Page) Texas Instruments – PWM Controller With Integrated Half-Bridge and SyncFET Drivers

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LM5035_15 Datasheet, PDF (1/39 Pages) Texas Instruments – PWM Controller With Integrated Half-Bridge and SyncFET Drivers

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LM5035

SNVS428H â JANUARY 2006 â REVISED OCTOBER 2015

LM5035 PWM Controller With Integrated Half-Bridge and SyncFET Drivers

1 Features

â¢1 105-V, 2-A Half-Bridge Gate Drivers

â¢ Synchronous Rectifier-Control Outputs With

Programmable Delays

â¢ High-Voltage (105-V) Start-up Regulator

â¢ Voltage Mode Control With Line Feedforward and

Volt-Second Limiting

â¢ Resistor Programmed, 2-MHz Capable Oscillator

â¢ Patent Pending Oscillator Synchronization

â¢ Programmable Line Undervoltage Lockout

â¢ Line Overvoltage Protection

â¢ Internal Thermal Shutdown Protection

â¢ Adjustable Soft-Start

â¢ Versatile Dual Mode Overcurrent Protection With

Hiccup Delay Timer

â¢ Cycle-by-Cycle Overcurrent Protection

â¢ Direct Optocoupler Interface

â¢ 5-V Reference Output

2 Applications

â¢ Industrial Power Converters

â¢ Telecom Power Converters

3 Description

The LM5035 half-bridge controller-gate driver

contains all of the features necessary to implement

half-bridge topology power converters using voltage

mode control with line voltage feedforward. The

floating high-side gate driver is capable of operating

with supply voltages up to 105 V. Both the high-side

and low-side gate drivers are capable of 2-A peak. An

internal high voltage start-up regulator is included,

along with programmable line undervoltage lockout

(UVLO) and overvoltage protection (OVP). The

oscillator is programmed with a single resistor to

frequencies up to 2 MHz. The oscillator can also be

synchronized to an external clock. A current sense

input and a programmable timer provide cycle-by-

cycle current limit and adjustable hiccup mode

overload protection.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM5035

HTSSOP

PowerPADâ¢ (20)

WQFN (24)

6.50 mm Ã 4.40 mm

5.00 mm Ã 4.00 mm

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

the end of the data sheet.

Simplied Application Diagram

VPWR

LM5035

VIN

UVLO

VOUT

OVP

RAMP

AGND

SR2

SR1

COMP

PGND

Error Amplifier

and Isolation

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.

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