LM5035

ACTIVE

PWM controller with Integrated half-bridge and SyncFET Drivers

Product details

Vin (max) (V) 15 Operating temperature range (°C) -40 to 125 Control mode Feedforward Topology Half bridge Rating Catalog Features Current limiting, High-voltage startup, Multi-topology, Pre-bias startup, Synchronization pin Duty cycle (max) (%) 50
Vin (max) (V) 15 Operating temperature range (°C) -40 to 125 Control mode Feedforward Topology Half bridge Rating Catalog Features Current limiting, High-voltage startup, Multi-topology, Pre-bias startup, Synchronization pin Duty cycle (max) (%) 50
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4 WQFN (NHZ) 24 20 mm² 5 x 4
  • 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
  • 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

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.

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

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Type Title Date
* Data sheet LM5035 PWM Controller With Integrated Half-Bridge and SyncFET Drivers datasheet (Rev. H) PDF | HTML 15 Oct 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide AN-1435 LM5035 Evaluation Board (Rev. A) 06 May 2013
EVM User's guide AN-1755 LM5035A Evaluation Board (Rev. A) 06 May 2013
User guide AN-2043 LM5035C Evaluation Board (Rev. A) 06 May 2013

Design & development

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Evaluation board

LM5035CEVAL — Evaluation Board for the LM5035C

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 (...)

User guide: PDF
Not available on TI.com
Simulation model

LM5035 PSPICE Model

SNVM018.ZIP (313 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 20 Ultra Librarian
WQFN (NHZ) 24 Ultra Librarian

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