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参数

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 查找其它 PWM控制器和谐振控制器

封装|引脚|尺寸

HTSSOP (PWP) 20 42 mm² 6.5 x 6.4 WQFN (NHZ) 24 20 mm² 5 x 4 open-in-new 查找其它 PWM控制器和谐振控制器

特性

  • 105V / 2A Half-Bridge Gate Drivers
  • Synchronous Rectifier Control Outputs with Programmable Delays
  • Synchronous Rectifiers Turned Off in Shutdown Modes.
  • Reduced Deadtime Between High and Low Side Drive for Higher Maximum Duty Cycle.
  • High Voltage (105V) Start-up Regulator
  • Voltage mode Control with Line Feed-Forward and Volt Second Limiting
  • Resistor Programmed, 2MHz Capable Oscillator
  • Programmable Line Under-Voltage Lockout and Over-Voltage Protection
  • Internal Thermal Shutdown Protection
  • Adjustable Soft-Start
  • Versatile Dual Mode Over-Current Protection with Hiccup Delay Timer
  • Cycle-by-Cycle Over-Current Protection
  • Direct Opto-coupler Interface
  • 5V Reference Output

Packages

  • TSSOP-20
  • WQFN-24 (4mm x 5mm)

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open-in-new 查找其它 PWM控制器和谐振控制器

描述

The LM5035B 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 feed-forward.

The LM5035B is a functional variant of the LM5035A half-bridge PWM controller. The LM5035B provides higher maximum duty cycle and higher start-up regulator output current than the LM5035A or LM5035. Also, the Synchronous Rectifier drive outputs of the LM5035B are held low in shutdown modes.

The LM5035, LM5035A, and LM5035B include a floating high-side gate driver, which is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An internal high voltage startup 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 2MHz. 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 differences between LM5035, LM5035A, LM5035B, and LM5035C are summarized in .

open-in-new 查找其它 PWM控制器和谐振控制器
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 LM5035B PWM Controller w/Integ Half-Bridge and SyncFET Drivers 数据表 2013年 3月 29日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$149.00
说明

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 (...)

设计工具和仿真

仿真模型 下载
SNVM004.ZIP (313 KB) - PSpice Model

CAD/CAE 符号

封装 引脚 下载
HTSSOP (PWP) 20 视图选项
WQFN (NHZ) 24 视图选项

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