可提供此产品的更新版本
功能与比较器件相同但引脚有所不同。
LM5022
- Internal 60-V start-up regulator
- 1-A Peak MOSFET gate driver
- VIN Range: 6 V to 60 V (operates down to 3 V after start-up)
- Duty cycle limit of 90%
- Programmable UVLO with hysteresis
- Cycle-by-cycle current limit
- External synchronizable (AC-coupled)
- Single resistor oscillator frequency set
- Slope compensation
- Adjustable soft start
- 10-Pin VSSOP package
The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP package.
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 | LM5022 60-V Low-Side Controller for Boost and SEPIC 数据表 (Rev. J) | PDF | HTML | 2018-5-21 | ||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 技术文章 | What is behind isolated DC/DC converter voltage regulation? | PDF | HTML | 2015-8-31 | |||
| 白皮书 | How to design boost, SEPIC or flyback regulators with wide VIN power ICs | 2014-7-29 | ||||
| 应用手册 | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014-7-11 | ||||
| 应用手册 | AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. B) | 2013-5-6 | ||||
| 应用手册 | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013-5-3 | ||||
| 应用手册 | Application Note 1557 LM5022 Evaluation Board (cn) | 2008-5-22 | ||||
| 应用手册 | Application Note 1696 Designing a Boost LED Driver Using the LM5022 (cn) | 2008-2-22 |
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）。
FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator
该工具可帮助电源工程师根据规范选择合适的隔离式 DC-DC 拓扑。根据所选的拓扑，计算器还会针对设计推荐合适的 IC。
许多 TI 参考设计都包括 LM5022
通过我们的参考设计选择工具来审查并确定最适用于您应用和参数的设计。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VSSOP (DGS) | 10 | Ultra Librarian |
订购和质量
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