LM5039是TI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，本页介绍了LM5039的产品说明、应用、特性等，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 - TI公司（Texas Instruments，德州仪器）
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.
- 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)
