LM5115
- Self-Synchronization to Main Channel Output
- Standalone DC/DC Synchronous Buck Mode
- Leading Edge Pulse Width Modulation
- Voltage-Mode Control with Current Injection and Input Line Feed-Forward
- Operates from AC or DC Input up to 75V
- Wide 4.5V to 30V Bias Supply Range
- Wide 0.75V to 13.5V Output Range.
- Top and Bottom Gate Drivers Sink 2.5A Peak
- Adaptive Gate Driver Dead-Time Control
- Wide Bandwidth Error Amplifier (4MHz)
- Programmable Soft-Start
- Thermal Shutdown Protection
- TSSOP-16 or Thermally Enhanced WSON-16 Packages
All trademarks are the property of their respective owners.
The LM5115 is a versatile switching regulator controller. It has two main application configurations. The first is utilizing the Secondary Side Post Regulation (SSPR) technique to implement multiple output power converters. In the second configuration, it can be used as a standalone synchronous buck controller (Please see for more details). The SSPR technique develops a highly efficient and well regulated auxiliary output from the secondary side switching waveform of an isolated power converter. Regulation of the auxiliary output voltage is achieved by leading edge pulse width modulation (PWM) of the main channel duty cycle. Leading edge modulation is compatible with either current mode or voltage mode control of the main output. The LM5115 drives external high side and low side NMOS power switches configured as a synchronous buck regulator. A current sense amplifier provides overload protection and operates over a wide common mode input range. Additional features include a low dropout (LDO) bias regulator, error amplifier, precision reference, adaptive dead time control of the gate signals and thermal shutdown.
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 | LM5115 Secondary Side Post Regulator / Synchronous Buck Controller 数据表 (Rev. E) | 2013-3-21 | |||
| 白皮书 | Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) | 2019-4-10 | ||||
| 模拟设计期刊 | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016-7-21 | ||||
| 用户指南 | Application Note 1542 LM5115A Evaluation Board (cn) | 2007-3-17 | ||||
| 用户指南 | Application Note 1367 LM5115 HV DC Evaluation Board (cn) | 2005-10-18 |
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) | 16 | Ultra Librarian |
| WSON (NHQ) | 16 | 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。