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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS7B63-Q1 Automotive, 300mA, 40V High-Voltage, Ultra-Low-Quiescent-Current Watchdog LDO datasheet (Rev. D) | PDF | HTML | 2025年 6月 6日 |
| Application note | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2025年 9月 23日 | |
| Functional safety information | TPS7B63-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) | 2020年 6月 10日 | ||
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||
| E-book | LDO Basics (Rev. A) | 2019年 4月 8日 | ||
| Technical article | Discrete SBCs: versatile and scalable solutions for any application | PDF | HTML | 2017年 7月 27日 | |
| Technical article | LDO basics: dropout | PDF | HTML | 2017年 3月 16日 |
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
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
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。