LM5039 - 具有高级电流限制的半桥接 PWM 控制器

LM5039是TI德州仪器公司的一款PWM与谐振控制器产品，LM5039是具有高级电流限制的半桥接 PWM 控制器，本站介绍了LM5039的封装应用图解、特点和优点、功能等，并给出了与LM5039相关的TI元器件型号供参考。

LM5039 - 具有高级电流限制的半桥接 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

产品描述

The LM5039 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 LM5039 is a functional variant of the LM5035B half-bridge PWM controller, featuring average current limit during an overload event to balance the center-point of the half-bridge capacitor divider. The floating high-side gate driver 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). 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 provides peak cycle-by-cycle and average current limit. Other features include adjustable hiccup mode overload protection, soft-start, revision reference, and thermal shutdown.

产品特性

105V / 2A Half-Bridge Gate Drivers
Synchronous Rectifier Control Outputs with Programmable Delays
High Voltage (105V) Start-up Regulator
Voltage-mode Control with Line Feed-Forward and Volt • Second Limiting
Programmable Average Current Limit Balances the Half-Bridge Capacitor Divider Voltage in an Overload Condition
Programmable Hiccup Mode Timer Reduces Power Dissipation During a Continuous Overload Event
Adjustable Peak Cycle-by-Cycle Over Current Protection
Resistor Programmed, 2MHz Capable Oscillator
Patented Oscillator Synchronization
Programmable Line Under-Voltage Lockout
Internal Thermal Shutdown Protection
Adjustable Soft-Start
Direct Opto-Coupler Interface
5V Reference Output

Packages

HTSSOP-20 (Thermally enhanced)
WQFN-24 (4mm x 5mm)

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