TPS3824
- Power-on reset generator with a fixed delay time of 200ms (TPS3823, TPS3824, TPS3825, and TPS3828) or 25ms (TPS3820)
- Manual reset input (TPS3820, TPS3823, TPS3825, and TPS3828)
- Reset output available in active-low (TPS3820, TPS3823, TPS3824, and TPS3825), active-high (TPS3824 and TPS3825), and open drain (TPS3828)
- Supply voltage supervision range: 2.5V, 3V, 3.3V, 5V
- Watchdog timer (TPS3820, TPS3823, TPS3824, and TPS3828)
- Supply current of 15µA (typical)
- 5-pin SOT-23 package
- Temperature range: −40°C to 85°C (−40°C to 125°C for TPS3823A-33)
The TPS382x family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains less than the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to make sure proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage (VIT− + VHYS). When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x family also offers watchdog time out options of 200ms (TPS3820) and 1.6s (TPS3823, TPS3824, and TPS3828).
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS382x Voltage Monitor With Watchdog Timer datasheet (Rev. O) | PDF | HTML | 2025年 3月 20日 |
| Application note | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | 2020年 3月 17日 | ||
| Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020年 2月 28日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Application brief | Latching a Voltage Supervisor (Reset IC) (Rev. A) | 2019年 4月 5日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Disabling the Watchdog Timer for TI's Family of Supervisors | 2003年 10月 30日 | ||
| Application note | Power Supply Sequencing Solutions for Dual Supply Voltage DSPs (Rev. A) | 2000年 7月 5日 |
設計與開發
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TPS382-Q1EVM — 具有整合式看門狗的 TPS382x-Q1 電壓監控器評估模組
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | 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