TPS22986
- 2.8 V to 19.8 V Input
- Auto Selects 3.3 V supply
- >10mA Low Power Switch
- >500mA High Power Switch
- Reverse Current Blocking from OUT to VDD
- Wake on UART Input Activity
- UART RX and TX Buffers
The TPS22986 is a supply selection device for active Thunderbolt™ cables. The device selects a 3.3V input from two available supplies and connects the chosen input to two outputs, OUTA and OUTB. When a 3.3V supply is not present, the outputs become high impedance.
The TPS22986 has two modes of operation, Normal and Control. In Normal Mode, OUTA is always on when a valid supply is present. OUTB is connected to a valid supply when the ENB input is high.
In Control Mode, OUTA behaves the same as Normal Mode and OUTB is controlled by a combination of monitored inputs and valid supplies on VDD1 and VDD2. When a valid VDD is available, the device waits for a rising input on ENB and then disconnects OUTB until the next falling RXH transition. Once the next falling RXH transition occurs, the device reconnects OUTB.
In either mode, when a valid VDD is not available, the TPS22986 opens all switches and the outputs OUTA and OUTB become high impedance. When the connected VDD exceeds 3.6V, it is disconnected from the outputs.
The TPS22986 is available in a 1.6mm x 1.6mm WCSP package.
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 | Thunderbolt Supply Selection IC, TPS22986 datasheet (Rev. A) | 2013/12/18 | |||
| 應用說明 | Load Switch Thermal Considerations (Rev. A) | 2018/10/11 | ||||
| 應用說明 | Selecting a Load Switch to Replace a Discrete Solution | 2017/4/30 | ||||
| 應用說明 | Timing of Load Switches | 2017/4/27 | ||||
| 應用說明 | Managing Inrush Current (Rev. A) | 2015/5/28 |
設計與開發
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TPS22986EVM — TPS22986 Thunderbolt 電纜功率多工器評估模組
The TPS22986 evaluation module (EVM) helps designers evaluate the performance of the TPS22986 Supply Selection IC. The TPS22986 selects a 3.3-V input from two available supplies and connects the chosen input to two outputs, OUTA and OUTB. If a 3.3-V supply is not present, the outputs become high (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFP) | 16 | 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。