TPS3431

現行

具有啟用功能的標準可編程看門狗定時器

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同,但引腳輸出與所比較的裝置不同
TPS3435 現行 毫微靜態電流精密逾時監視計時器 250-nA IQ, enhanced watchdog accuracy, compact packaging, and on-the-fly programming

產品詳細資料

Features Timeout watchdog, Watchdog disable, Watchdog timer Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5 Rating Catalog Watchdog timer WDI (s) 0.2, Programmable Operating temperature range (°C) -40 to 125
Features Timeout watchdog, Watchdog disable, Watchdog timer Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5 Rating Catalog Watchdog timer WDI (s) 0.2, Programmable Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • Factory-programmed precision watchdog timers:
    • ±2.5% Accurate watchdog timeout (WDT) typical at 25°C
  • Watchdog disable feature
  • User-programmable watchdog timeout
  • Input voltage range: VDD = 1.8 V to 6.5 V
  • Low quiescent current: IDD = 10 µA (typical)
  • Active-low open-drain output
  • Enable input (EN) and enable output (ENOUT)
  • Available in a small 3-mm × 3-mm, 8-pin VSON package
  • Junction operating temperature range: –40°C to +125°C
  • Factory-programmed precision watchdog timers:
    • ±2.5% Accurate watchdog timeout (WDT) typical at 25°C
  • Watchdog disable feature
  • User-programmable watchdog timeout
  • Input voltage range: VDD = 1.8 V to 6.5 V
  • Low quiescent current: IDD = 10 µA (typical)
  • Active-low open-drain output
  • Enable input (EN) and enable output (ENOUT)
  • Available in a small 3-mm × 3-mm, 8-pin VSON package
  • Junction operating temperature range: –40°C to +125°C

The TPS3431 is a standard programmable watchdog timer with an enable feature for a wide variety of applications. The watchdog timeout features a 15% accuracy, high-precision timing (–40°C to +125°C) and 2.5% typical at 25°C. The watchdog timeout can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via the Enable pin or the SET logic pins to avoid undesired watchdog timeouts during the development process.

The TPS3431 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package.

The TPS3431 is a standard programmable watchdog timer with an enable feature for a wide variety of applications. The watchdog timeout features a 15% accuracy, high-precision timing (–40°C to +125°C) and 2.5% typical at 25°C. The watchdog timeout can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via the Enable pin or the SET logic pins to avoid undesired watchdog timeouts during the development process.

The TPS3431 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package.

下載 觀看有字幕稿的影片 影片

查看 TI.com 庫存中的類似產品

規格相似的產品依可用的 TI.com 庫存排序。

立即檢視

您可能會感興趣的類似產品

open-in-new 比較替代產品
可直接投入的替代產品,相較於所比較的裝置,具備升級功能
TPS3431-Q1 現行 具有啟用功能的車用標準可編程看門狗定時器 AEC-Q100 qualified version of this device
功能與所比較的裝置相似
TPS3851 現行 具整合式看門口定時器的高精度電壓監控器 Integrated watchdog and voltage monitor option with enhanced accuracy (0.8%)

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 5
類型 標題 日期
* Data sheet TPS3431 Standard Programmable Watchdog Timer with Enable datasheet (Rev. A) PDF | HTML 2021年 5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
EVM User's guide TPS3431EVM Standard Watchdog Timer With Enable User's Guide 2018年 7月 12日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS3431EVM — 具有啟用功能的 TPS3431 標準可編程監視計時器評估模組

The TPS3431 evaluation module (EVM) is a platform for evaluating the TP3431 device. TPS3431 is a standard programmable watchdog timer with an enable feature for a wide variety of applications. This device is used to monitor a watchdog input from a MCU and trigger a watchdog output if a (...)

使用指南: PDF
TI.com 無法提供
計算工具

SNVC223 TPS343x Timing Calculator

支援產品和硬體

支援產品和硬體

產品
監控器和重設 IC
TPS3430 具有可編程重設延遲功能的窗口看門狗計時器 TPS3430-Q1 具有可編程重設延遲功能的車用窗口看門狗計時器 TPS3431 具有啟用功能的標準可編程看門狗定時器 TPS3431-Q1 具有啟用功能的車用標準可編程看門狗定時器
硬體開發
開發板
TPS3430EVM 具有可編程重設延遲功能的 TPS3430 窗口監視計時器 TPS3431EVM 具有啟用功能的 TPS3431 標準可編程監視計時器評估模組
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
參考設計

TIDA-010041 — 用作比較器或電源序列器的奈米功率、寬 VIN (最大 12 V) 監控器參考設計

This reference design highlights a versatile use case for a low-power reset IC and a watchdog timer. With less than 1-µA current consumption, the TPS3840 device can be configured to work either as a comparator (with simple 3-pin configuration) or as a universal power supply supervisor that (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON (DRB) 8 Ultra Librarian

訂購與品質

內含資訊:
  • 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
內含資訊:
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片