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LM5045 - 产品图解：
LM5045-具有集成 MOSFET 驱动器的全桥接 PWM 控制器
LM5045-PWM与谐振控制器-离线隔离型DC/DC控制器和转换器-电源管理
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TI产品 - LM5045介绍

LM5045 - 具有集成 MOSFET 驱动器的全桥接 PWM 控制器

LM5045是TI德州仪器公司的一款PWM与谐振控制器产品，LM5045是具有集成 MOSFET 驱动器的全桥接 PWM 控制器，本站介绍了LM5045的封装应用图解、特点和优点、功能等，并给出了与LM5045相关的TI元器件型号供参考。

LM5045 - 具有集成 MOSFET 驱动器的全桥接 PWM 控制器 - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品特性
  • Highest Integration Controller for Small Form Factor, High-Density Power Converters
  • High-Voltage Start-Up Regulator
  • Intelligent Sync Rectifier Start-Up Allows Linear Turnon Into Prebiased Loads
  • Synchronous Rectifiers Disabled in UVLO mode and Hiccup Mode
  • Two Independent, Programmable Synchronous Rectifier Dead-Time Adjustments
  • Four High-Current 2-A Bridge Gate Drivers
  • Wide-Bandwidth Optocoupler Interface
  • Configurable for Either Current Mode or Voltage Mode Control
  • Dual-Mode Overcurrent Protection
  • Resistor Programmed 2-MHz Oscillator
  • Programmable Line UVLO and OVP
产品应用
  • E-Bike
  • Military: Radar and Electronic Warfare
  • Power: Telecom DC-DC Module: Analog
  • Private Branch Exchange (PBX)
  • Solar Power Inverters
  • Vector Signal Generators
  • Microwave Ovens
  • Point-to-Point Microwave Backhaul
  • Power: Telecom/Server AC/DC Supply: Dual Controller: Analog
  • Solar Micro-Inverters
  • TETRA Base Stations
  • Washing Machine: Low-End
产品说明

The LM5045 PWM controller contains all of the features necessary to implement full-bridge topology power converters using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100 V. This highly integrated controller-driver provides dual 2-A high-side and low-side gate drivers for the four external bridge MOSFETs plus control signals for the secondary-side synchronous rectifier MOSFETs. External resistors program the leading and trailing edge dead-time between the main and synchronous rectifier control signals. Intelligent start-up of the synchronous rectifiers allows monotonic turnon of the power converter even with prebias load conditions. Additional features include cycle-by-cycle current limiting, hiccup mode restart, programmable soft-start, synchronous rectifier soft-start, and a 2-MHz capable oscillator with synchronization capability and thermal shutdown.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM5045HTSSOP (28)9.70 mm × 4.40 mm
WQFN (28)5.00 mm × 5.00 mm
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