PWM controller with Integrated half-bridge and SyncFET Drivers


Product details


Topology Half-Bridge Control method Feedforward, Voltage VCC (Min) (V) 8 VCC (Max) (V) 15 Duty cycle (Max) (%) 50 UVLO thresholds on/off (V) Programmable/1.25V Frequency (Max) (kHz) 2000 Operating temperature range (C) -40 to 125 Gate drive (Typ) (A) 2 Features Current Limiting, HV Start-up, Multi-topology, Pre-Bias Start-Up, Synchronization Pin Rating Catalog open-in-new Find other PWM controllers & resonant controllers

Package | Pins | Size

HTSSOP (PWP) 20 42 mm² 6.5 x 6.4 WQFN (NHZ) 24 20 mm² 5 x 4 open-in-new Find other PWM controllers & resonant controllers


  • 105-V, 2-A Half-Bridge Gate Drivers
  • Synchronous Rectifier-Control Outputs With
    Programmable Delays
  • High-Voltage (105-V) Start-up Regulator
  • Voltage Mode Control With Line Feedforward and
    Volt-Second Limiting
  • Resistor Programmed, 2-MHz Capable Oscillator
  • Patent Pending Oscillator Synchronization
  • Programmable Line Undervoltage Lockout
  • Line Overvoltage Protection
  • Internal Thermal Shutdown Protection
  • Adjustable Soft-Start
  • Versatile Dual Mode Overcurrent Protection With
    Hiccup Delay Timer
  • Cycle-by-Cycle Overcurrent Protection
  • Direct Optocoupler Interface
  • 5-V Reference Output
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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.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet LM5035 PWM Controller With Integrated Half-Bridge and SyncFET Drivers datasheet (Rev. H) Oct. 15, 2015
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides AN-1435 LM5035 Evaluation Board (Rev. A) May 06, 2013
User guides AN-1755 LM5035A Evaluation Board (Rev. A) May 06, 2013
User guides AN-2043 LM5035C Evaluation Board (Rev. A) May 06, 2013
Technical articles Introducing TI’s new Power Solution Video Series Apr. 19, 2012

Design & development

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Hardware development

document-generic User guide

The LM5035C evaluation board is designed to provide the design engineer with a fully functional power converter based on the Half Bridge topology to evaluate the LM5035C controller. The LM5035C is a functional variant of the LM5035B Half-Bridge PWM Controller. The amplitude of the SR control signals (...)

Design tools & simulation

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CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 20 View options
WQFN (NHZ) 24 View options

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