首頁 電源管理 監控器和重設 IC
首頁
電源管理
監控器和重設 IC

TPS3813K33-EP

現行

具視窗看門狗的強化型產品處理器監控電路

立即訂購
產品規格表

TPS3813K33-EP

現行
產品規格表 立即訂購

產品詳細資料

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93 Features Reset time delay, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Open-drain Time delay (ms) 25 Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Rating HiRel Enhanced Product Watchdog timer WDI (s) Programmable Operating temperature range (°C) -55 to 125
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93 Features Reset time delay, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Open-drain Time delay (ms) 25 Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Rating HiRel Enhanced Product Watchdog timer WDI (s) Programmable Operating temperature range (°C) -55 to 125
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree(1)
  • Window-Watchdog With Programmable Delay and Window Ratio
  • 6-Pin SOT-23 Package
  • Supply Current of 9 µA (Typ)
  • Power On Reset Generator With a Fixed Delay Time of 25 ms
  • Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V
  • Open-Drain Reset Output
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Safety Critical Systems
    • Automotive Systems
    • Healing Systems

(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree(1)
  • Window-Watchdog With Programmable Delay and Window Ratio
  • 6-Pin SOT-23 Package
  • Supply Current of 9 µA (Typ)
  • Power On Reset Generator With a Fixed Delay Time of 25 ms
  • Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V
  • Open-Drain Reset Output
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Safety Critical Systems
    • Automotive Systems
    • Healing Systems

(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

The TPS3813 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

During power on, RESET is asserted when supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td = 25 ms typical, starts after VDD has risen above the threshold voltage (VIT). 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.

For safety critical applications the TPS3813 family incorporates a so-called window-watchdog with programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting WDT to GND, VDD, or using an external capacitor. The lower limit and thus the window ratio is set by connecting WDR to GND or VDD. The supervised processor now needs to trigger the TPS3813 within this window not to assert a RESET.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 6-pin SOT-23 package.

The TPS3813 devices are characterized for operation over a temperature range of -55°C to 125°C.

The TPS3813 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

During power on, RESET is asserted when supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td = 25 ms typical, starts after VDD has risen above the threshold voltage (VIT). 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.

For safety critical applications the TPS3813 family incorporates a so-called window-watchdog with programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting WDT to GND, VDD, or using an external capacitor. The lower limit and thus the window ratio is set by connecting WDR to GND or VDD. The supervised processor now needs to trigger the TPS3813 within this window not to assert a RESET.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 6-pin SOT-23 package.

The TPS3813 devices are characterized for operation over a temperature range of -55°C to 125°C.
filter 尋找其它 監控器和重設 IC
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
功能相同，但引腳輸出與所比較的裝置不同
TPS35-Q1 現行 具有逾時監視計時器的車用毫微靜態電流精密監控器 Improved accuracy and lower quiescent current

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 TPS3813J25-EP, TPS3813L30-EP, TPS3813K33-EP, TPS3813I50-EP datasheet (Rev. A) 2006年 5月 24日
* Radiation & reliability report TPS3813K33MDBVREP Reliability Report 2016年 10月 5日
* VID TPS3813K33-EP VID V6206627 2016年 6月 21日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Application note All Window Watchdog Supervisors 2009年 9月 9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)。

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 (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 6 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

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

以英文檢視所有論壇主題

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