TPS3423
- Operating voltage range: 1V to 6V
- Nano supply current: 18nA (typical)
- HBM ESD rating on push-button pin: ±8kV
- Programmable short press and long press
duration
- TPS3423, TPS3424 fixed timing
options:
- Short press duration: 50msec to 13sec
- Long press duration: 1sec to 30sec
- Timer accuracy (maximum): ±10%
- TPS3424: user-programmable option (50msec to 50sec) through external capacitor
- TPS3423, TPS3424 fixed timing
options:
- Output configurations:
- RESET configurations:
- Push-pull / open-drain, active high / low
- Latched / non-latched
- 100msec to 10sec pulse option for non-latched version
- INT configurations:
- open drain, active low
- non-latched (100msec to 1sec pulse duration)
- RESET configurations:
- Kill feature: enables host to control the RESET output
- Available in pin compatible SOT-583 and SOT563 packages
TPS3423 and TPS3424 are push-button controllers which offer wide range of independent detection of short press and long press functionality. These devices offer up to two outputs per push-button (RESET and INT), which can be used for various use cases including enabling the voltage regulator or circuit breakers, generating a monoshot for given press duration and sending an interrupt to micro controller. The device generates an interrupt pulse both for short press and long press notifying the micro controller. RESET output changes the state based on the device configuration.
The extreme low power consumption 18nA helps to improve product shelf life for battery powered devices. The device keeps the power tree disabled until required button press is detected. This feature can be used to implement battery freshness seal.
TPS3423/4 are offered in fixed timing options for short and long press durations. To provide flexibility to the designer, TPS3424 also offers user-programmable short and long press durations through an external capacitor. Kill pin in TPS3424 enables feedback from the microcontroller to asynchronously de-assert RESET.
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 | TPS3423, TPS3424, Nano-Power, Push-Button Controllers With Configurable Delay to Enable Battery Freshness Seal datasheet (Rev. C) | PDF | HTML | 2025/8/20 |
設計與開發
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TPS3424EVM — TPS3424 評估模組
TPS3424 評估模組 (EVM) 適用於評估 TPS3424 和 TPS3423 按鈕系列。此機板旨在為 TPS3424 和 TPS3423 裝置的所有輸入與輸出針腳提供範例設計和測試點，以擷取裝置的量測結果和行為資料。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-5X3 (DRL) | 8 | Ultra Librarian |