TPS7B63-Q1
- AEC-Q100 qualified for automotive
applications:
- Temperature grade 1: –40°C to 125°C, TA
- Maximum output current: 300mA
- 4V to 40V wide VIN input-voltage range with up to 45V transients
- Fixed 3.3V and 5V outputs
- Maximum dropout voltage: 400mV at 300mA
- Stable with output capacitor in wide range of capacitance (4.7µF to 500µF) and ESR (0.001Ω to 20Ω)
- Low quiescent current
(I(Q)):
- < 4µA when EN is low (shutdown mode)
- 19µA typical at light loads with WD_EN high (watchdog disabled)
- Configurable for window watchdog or standard watchdog
- Open-to-closed window ratio configurable as 1:1 or 8:1
- Fully adjustable watchdog period (from 10ms to 500ms)
- 10% accurate watchdog period
- Dedicated WD_EN pin to control watchdog ON-OFF
- Fully adjustable power-good threshold and power-good delay period
- Low input-voltage tracking to UVLO
- Integrated fault protection
- Overload current-limit protection
- Thermal shutdown
-
Functional Safety-Capable
- Documentation available to aid functional safety system design
- 16-pin HTSSOP package
In automotive microcontroller or microprocessor power-supply applications, the watchdog is used to monitor the microcontroller working status to prevent software runaway. The watchdog must be independent of the microcontroller in a reliable system.
The TPS7B63-Q1 is a 300mA watchdog low-dropout regulator (LDO) designed for an operating voltage up to 40V, with typical quiescent current of only 19µA at light load. The device integrates a programmable function for selecting a window watchdog or standard watchdog, with an external resistor to set the watchdog time within 10% accuracy.
The PG pin on the TPS7B63-Q1 indicates when the output voltage is stable and in regulation. The power-good delay period and power-good threshold can be adjusted by selecting external components. The device also features integrated short-circuit and overcurrent protection. The combination of such features makes this device particularly flexible and designed to supply a microcontroller in automotive applications.
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 | TPS7B63-Q1 Automotive, 300mA, 40V High-Voltage, Ultra-Low-Quiescent-Current Watchdog LDO datasheet (Rev. D) | PDF | HTML | 2025/6/6 | ||
| 應用說明 | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2025/9/23 | |||
| 功能安全資訊 | TPS7B63-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) | 2020/6/10 | ||||
| 應用說明 | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/6/27 | ||||
| 電子書 | LDO Basics (Rev. A) | 2019/4/8 | ||||
| 技術文章 | Discrete SBCs: versatile and scalable solutions for any application | PDF | HTML | 2017/7/27 | |||
| 技術文章 | LDO basics: dropout | PDF | HTML | 2017/3/16 |
設計與開發
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TPS7B6350EVM — TPS7B6350-Q1 300mA 看門狗 LDO 穩壓器評估模組
TPS7B6350EVM 評估模組 (EVM) 可協助評估 TPS7B6350-Q1 看門狗低壓差穩壓器 (LDO) 的運作與效能。TPS7B6350-Q1 是一款採用 16 接腳 HTSSOP 封裝的單晶片整合式 40V 300mA 看門狗 LDO 穩壓器。該元件專為汽車環境中的微控制器或微處理器電源供應所設計。該元件具備過載保護、過溫保護，以及整合式可調式電源良好閾值與延遲時間功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 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。