LM5034
- Two Independent PWM Current Mode Controllers
- Integrated High Voltage Startup Regulator
- Compound 2.5A Main Output Gate Drivers
- Single Resistor Oscillator Setting to 2 MHz
- Synchronizable Oscillator
- Active Clamp Gate Driver for P-Channel MOSFETs
- Adjustable Gate Drive Overlap Time
- Programmable Maximum Duty Cycle
- Maximum Duty Cycle Fold-Back at High Line Voltage
- Adjustable Timer for Hiccup Mode Current Limiting
- Integrated Slope Compensation
- Adjustable Line Under-Voltage Lockout
- Independently Adjustable Soft-Start (Each Regulator)
- Direct Interface with Opto-Coupler Transistor
- Thermal Shutdown
All trademarks are the property of their respective owners.
The LM5034 dual current mode PWM controller contains all the features needed to control either two independent forward/active clamp dc/dc converters or a single high current converter comprised of two interleaved power stages. The two controller channels operate 180° out of phase thereby reducing input ripple current. The LM5034 includes a startup regulator that operates over a wide input range up to 100V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5A peak sink current. The adjustable dead-time of the active clamp gate drivers and adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line under-voltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable restart delay, PWM slope compensation, soft-start, and a 2 MHz capable oscillator with synchronization capability.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LM5034 High Voltage Dual Interleaved Current Mode Controller with Active Clamp 数据表 (Rev. A) | 2013-3-29 | |||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 应用手册 | Operation and Benefits of Active-Clamp Forward Power Converters | 2007-3-22 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 20 | Ultra Librarian |
订购和质量
推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。