TPS65286
- Integrated Dual Power Distribution Switches:
- 2.5 V to 6 V Operating Input Voltage Range
- Integrated Back-to-Back Power MOSFETs With
Typical 100-mΩ On-Resistance - Adjustable Current Limiting from 75 mA to
2.7 A - ±6% Current-Limit Accuracy at 1.2 A (Typical)
- Latch-off Over Current Protection Versions
- Reverse Input-Output Voltage Protection
- Built-In Soft-Start
- Integrated Buck DCDC Converter:
- 4.5 V to 28 V Wide Input Voltage Range
- Maximum Continuous 6-A Output Load Current
- Feedback Reference Voltage 0.6 V ±1%
- Fixed 500-kHz Switching Frequency
- Built-In Internal Soft-Start Time: 1 ms
- Cycle-by-Cycle Current Limit
- Adjustable Current Limit Threshold
- Output Over-Voltage Protection
- External Clock Synchronization
- Over Temperature Protection
The TPS65286 is a full featured 4.5-V to 28-V VIN, 6-A output current synchronous step down DCDC converter, which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. The device also incorporates dual N-channel MOSFET power switches for power distribution systems. This device provides a total power distribution solution, where precision current limiting and fast protection response are required.
A dual 100-m&937; independent power distribution switch limits the output current to a programmable current limit threshold between typical 50 mA~2.7 A by using an external resistor. The current limit accuracy can be achieved as tightly as ±6% at typical 1.2 A. The nFAULT output asserts low under over-current and reverse-voltage conditions.
Constant frequency peak current mode control in the DCDC converter simplifies the compensation and optimizes transient response. Cycle-by-cycle over-current protection and operating in hiccup mode limit MOSFET power dissipation. When die temperature exceeds thermal over loading threshold, the over temperature protection shuts down the device.
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 | TPS65286 具有 4.5V 至 28V 输入电压的双路配电开关 数据表 | 2014-3-21 |
设计与开发
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TPS65286EVM-623 — TPS65286 具有双路配电开关和 28Vin/6A 降压转换器的评估模块
TPS65286EVM 评估模块 (EVM) 是一款组装完备且经过测试的电路，用于评估 4.5V 至 18V 输入与 5V/6A 输出的降压转换器，以及精密可调限流配电开关。TPS65286 PMIC 包含一个降压转换器和两个电源开关。该降压转换器旨在提供可调的输出电压，其最大连续电流可达 6A。电源开关旨在提供可通过外部电阻进行编程的精确电流限制。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RHD) | 28 | Ultra Librarian |
订购和质量
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