SM72485
- Operating Input Voltage: 6 V to 95 V
- Integrated 100-V, N-Channel Buck Switch
- Internal Start-Up Regulator
- No Loop Compensation Required
- Ultra-Fast Transient Response
- On-time Varies Inversely With Input Voltage
- Operating Frequency Remains Constant With Varying Line Voltage and Load Current
- Adjustable Output Voltage From 2.5 V
- Highly Efficient Operation
- Precision Internal Reference
- Low Bias Current
- Intelligent Current Limit
- Thermal Shutdown
- Package
- VSSOP (3 mm × 3 mm)
- WSON (4 mm × 4 mm)
The SM72485 step-down switching regulator features all of the functions required to implement a low cost, efficient, Buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the VSSOP and the thermally enhanced WSON package. The regulator is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced off-time, which is inversely proportional to VOUT. This scheme ensures short circuit control while providing minimum foldback. Other features include: Thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout, maximum duty cycle limiter, and a precharge switch.
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 | SM72485 100-V, 150-mA Constant On-Time Buck Switching Regulator 数据表 (Rev. E) | PDF | HTML | 2016-12-16 | ||
| 应用手册 | AN-2122 SM3320-RF-EV Reference Design (Rev. E) | 2013-5-6 | ||||
| 应用手册 | SM3320-BATT-EV Charge Controller Reference Design (Rev. C) | 2013-5-6 |
设计与开发
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TIDA-00320 — 用于 PLC 的 8 通道并行 0.5A 低侧数字输出模块参考设计
数字输出模块是 PLC/PAC 或 DCS 中的标准元件，用于控制传动器、电机和其他电阻、电容或电感负载。客户将受益于这款具有并行接口的集成保护低侧驱动器，因为它使 MCU 接口易于与 Beaglebone Black 一起测试。该设计能够以小巧的外形在所有 8 个通道上提供 0.5A 电流，而不影响热管理
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (NGU) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
订购和质量
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