TPS2556
- Meets USB Current-Limiting Requirements
- Adjustable Current Limit, 500 mA to 5 A (Typical)
- ±6.5% Current-Limit Accuracy at 4.5 A
- Fast Overcurrent Response: 3.5-µs (Typical)
- 22-mΩ High-Side MOSFET
- Operating Voltage: 2.5 V to 6.5 V
- 2-µA Maximum Standby Supply Current
- Built-in Soft Start
- 15-kV and 8-kV System-Level ESD Capable
- UL Listed: File No. E169910 and CB IEC60950-1-am2 ed2.0
The TPS255x power-distribution switch is intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
TPS255x devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and overtemperature conditions.
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 | TPS255x Precision Adjustable Current-Limited Power-Distribution Switches 数据表 (Rev. B) | PDF | HTML | 2016-12-1 | ||
| 证书 | TPS2556, TPS2557 UL Certificate of Compliance IEC 62368-1 (Rev. A) | 2024-6-24 | ||||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 |
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）。
TPS2556DRBEVM-423 — TPS2556DRBEVM-423：用于 TPS2556 的评估模块
TPS2556EVM-423 和 TPS2557EVM-423 是评估模块 (EVM)，适用于德州仪器 (TI) 的具有可调节限流的配电开关。这些 EVM 在 2.5V 至 6.5V 的电压范围内工作。板载跳线将输出限流设置为 0.5A 或 1A。该电路板设计用于 5A 电流功能的 TPS2556 或 TPS2557。测试点允许方便快捷地访问所有关键节点电压。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
订购和质量
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