TPS22992
- Input operating voltage range (VIN):
- TPS22992: 0.1 V to 5.5 V
- TPS22992S: 1 V to 5.5 V
- Bias voltage supply (VBIAS): 1.5 V to 5.5 V
- Maximum continuous current: 6 A
- On-resistance (RON): 8.7 mΩ (typ.)
- Adjustable slew rate control
- Adjustable quick output discharge (QOD)
- Open drain Power Good (PG) signal
- Low power consumption:
- ON state (IQ): 10 µA (typ.) for TPS22992
- ON state (IQ): 30 µA (typ.) for TPS22992S
- OFF state (ISD): 0.1 µA (typ.)
- Short circuit protection (TPS22992S only)
- Thermal shutdown
- Smart ON pin pulldown (RPD,ON)
- ON ≥ VIH (ION): 25 nA (typ.)
- ON ≤ VIL (RPD,ON): 500 kΩ (typ.)
The TPS22992x product family consists of two devices: TPS22992 and TPS22992S. Each device is a single-channel load switch with an 8.7-mΩ power MOSFET designed to maximize power density in applications up to 5.5 V and 6 A. A configurable rise time provides flexibility for power sequencing and minimizes inrush current for high capacitance loads.
The switch is controlled by an enable pin (ON), which is capable of interfacing directly with low voltage GPIO signals (VIH = 0.8 V). The TPS22992x device has an optional QOD pin for quick output discharge when switch is turned off, and the fall time (tFALL) of the output can be adjusted through an external resistor. There is a Power Good (PG) signal on the device that indicates when the main MOSFET is fully turned on, which can be used to enable a downstream load.
Both TPS22992x devices come with thermal shutdown to ensure protection in high temperature environments. The TPS22992S device also integrates overcurrent protection, preventing damage to the device if the output is shorted to ground during operation or start-up.
For small form factor applications, the TPS22992x devices are available in a 1.25 × 1.25mm, 0.4-mm pitch, 8-pin WQFN package. The TPS22992 device is also available in a 1.5 × 1.25 mm, 0.5-mm pitch, 8-pin WQFN package where a wider pin pitch is needed. Both devices are characterized for operation over the free-air temperature range of –40°C to +125°C.
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 | TPS22992x 5-V, 8.7-mΩ, 6-A Load Switch With Adjustable Rise Time datasheet (Rev. A) | PDF | HTML | 2021/12/21 | ||
| 技術文章 | How innovative packaging can drive higher power density in load switches | PDF | HTML | 2022/2/23 | |||
| 證書 | TPS22992EVM EU RoHS Declaration of Conformity (DoC) | 2021/6/3 | ||||
| 應用說明 | Basics of Load Switches (Rev. A) | 2018/9/5 | ||||
| 應用說明 | Managing Inrush Current (Rev. A) | 2015/5/28 |
設計與開發
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TPS22992EVM — 適用於 5.5-V、6-A 負載開關的 TPS22992 評估模組
TPS22992EVM 是一款雙層 PCB，內含 TPS22992 負載開關裝置。與裝置及 PCB 佈線圖路由連接的 VIN 和 VOUT 能夠處理高連續電流，並提供出入測試中裝置的低電阻路徑。測試點連線可讓 EVM 使用者利用使用者定義的測試條件來控制裝置，並進行準確的 RON 量測。
TPS22992SEVM — 適用於 5.5-V、6-A 電流限制負載開關的 TPS22992S 評估模組
TPS22992S 評估模組 (EVM) 是一款雙層 PCB，內含 TPS22992S 負載開關裝置。與裝置及 PCB 佈線圖路由連接的 VIN 和 VOUT 能夠處理高連續電流，並提供出入測試中裝置的低電阻路徑。測試點連線可讓 EVM 使用者利用使用者定義的測試條件來控制裝置，並進行準確的 RON 量測。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN-HR (RXP) | 8 | Ultra Librarian |
| WQFN-HR (RXN) | 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。