TPS2557-Q1
- AEC-Q100 Qualified
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C5
-
Functional Safety-Capable
- Documentation available to aid functional safety system design
- Meets USB current-limiting requirements
- Adjustable current limit, 500 mA – 5 A (typ.)
- ±6.5% current-limit accuracy at 4.5 A
- Fast short-circuit response – 3.5 µs (typ.)
- 22-mΩ high-side MOSFET
- Operating range: 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
- Safety-related certifications:
- UL Recognized for UL 2367
- CB Certification for IEC 60950
- CB Certification for IEC 62368
The TPS2556-Q1 and TPS2557-Q1 power-distribution switches are specialized for automotive applications which require precision current limiting or capacity to handle heavy capacitive loads and short circuits. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) via an external resistor. Control of the power-switch rise and fall times minimizes current surges during turnon or turnoff.
TPS2556-Q1 and TPS2557-Q1 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.
Use with the TPS2511-Q1 or TPS2513A-Q1 for a low-loss, automotive-qualified, USB charging-port solution capable of charging all of today’s popular phones and tablets.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS255x-Q1 Precision Automotive Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. B) | PDF | HTML | 2020/9/23 | ||
| 證書 | TPS2556, TPS2557 UL Certificate of Compliance IEC 62368-1 (Rev. A) | 2024/6/24 | ||||
| 功能安全資訊 | TPS2556-Q1, TPS2557-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) | PDF | HTML | 2020/7/20 | |||
| 應用說明 | How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device | PDF | HTML | 2020/2/26 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 |
設計與開發
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TPS2557DRBEVM-423 — TPS2557DRBEVM-423：用於 TPS2557 的評估模組
The TPS2556EVM-423 and TPS2557EVM-423 are evaluation modules (EVM) for Texas Instruments power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5-V to 6.5-V range. An on-board jumper sets the output current-limit to either 0.5 A or 1 A. The board is designed for the (...)
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。