首頁 電源管理 監控器和重設 IC 重設與看門狗 IC

TPS3825

現行

具有手動復位電壓監控器 (重置 IC)

產品詳細資料

Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93, 4.55 Features Complimentary output, Manual reset capable Reset threshold accuracy (%) 2.4 Iq (typ) (mA) 0.015 Output driver type/reset output Active-high, Active-low, Push-Pull Time delay (ms) 200 Watchdog timer WDI (s) None Supply voltage (min) (V) 1.1 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 85
Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93, 4.55 Features Complimentary output, Manual reset capable Reset threshold accuracy (%) 2.4 Iq (typ) (mA) 0.015 Output driver type/reset output Active-high, Active-low, Push-Pull Time delay (ms) 200 Watchdog timer WDI (s) None Supply voltage (min) (V) 1.1 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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)
  • 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).

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).

下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能與所比較的裝置相似
TPS3850-Q1 現行 具窗口看門狗定時器和可編程延遲且適用 OV 和 UV 監控的車用窗口看門狗 Offers more threshold voltage options (0.84 V to 4.8 V) with higher reset threshold accuracy and programmable watchdog.

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 11
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
Test report TIDA-00609 Test Results 2015年 6月 25日
User guide Easy Demo User Manual 2015年 6月 22日
Test report TIDA-00089 Test Results 2013年 12月 13日
User guide Value Soundbar Reference Design Kit Development Guide (Rev. A) 2012年 2月 3日
Application note Disabling the Watchdog Timer for TI's Family of Supervisors 2003年 10月 30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

TPS382-Q1EVM — 具有整合式看門狗的 TPS382x-Q1 電壓監控器評估模組

TPS382-Q1EVM 評估模組 (EVM) 有五種不同的 TPS382x-Q1 裝置,可讓您評估和測試產品系列的不同功能。  EVM 包括具有 2.5V、3V、3.3V 和 5V 固定監控功能的裝置,並配備看門狗輸入、手動重設、正和負重設輸出、以及開漏和推拉式重設功能的。
使用指南: PDF
TI.com 無法提供
支援軟體

SLVC367 PCM3070-K CS v1.2.3

支援產品和硬體

支援產品和硬體

產品
重設與看門狗 IC
TPS3825 具有手動復位電壓監控器 (重置 IC)
硬體開發
開發板
PCM3070RHBEVM-K PCM3070RHBEVM-K 評估模組
支援軟體

SLVC369 RDK-VALUE-SB-RELEASE-v1

支援產品和硬體

支援產品和硬體

產品
重設與看門狗 IC
TPS3825 具有手動復位電壓監控器 (重置 IC)
支援軟體

TIDCAJ4 TIDA-00609 Software

支援產品和硬體

支援產品和硬體

產品
重設與看門狗 IC
TPS3825 具有手動復位電壓監控器 (重置 IC)
組裝圖

TIDA-00609 Assembly Drawing

TIDRFK6.PDF (1219 KB)
物料清單

TIDA-00089 BOM

TIDR315.PDF (138 KB)
物料清單

TIDA-00609 BOM

TIDRFK5.PDF (125 KB)
CAD/CAE 符號

TIDA-00609 CAD Files

TIDRFK8.ZIP (24452 KB)
Gerber 檔案

TIDA-00089 Gerber

TIDC216.ZIP (1286 KB)
Gerber 檔案

TIDA-00609 Gerber

TIDCAJ3.ZIP (7534 KB)
PCB 佈局

TIDA-00609 PCB

TIDRFK7.PDF (2187 KB)
配置圖

TIDA-00089 Schematic

TIDR314.PDF (133 KB)
配置圖

TIDA-00609 Schematic

TIDRFK4.PDF (228 KB)
模擬工具

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

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一,涵蓋我們的類比和電源產品組合,以及特定類比行為模型,且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前,建立完整的終端設備設計和解決方案原型,進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
參考設計

TIDA-00609 — 自我啟動音訊系統

The purpose of this reference design is to provide hardware and software tools that can be used as reference for audio systems. The new revision of the PurePath™ Console Motherboard (Rev F) adds stand-alone self-booting capabilities to allow making compelling demos with any evaluation module (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-00089 — 適用於立體聲道或 2.1 應用的超值條形音箱參考設計套件

This is a Value Soundbar reference design kit for Stereo or 2.1 applications, which can easily be reapplied for PC speakers, or MP3 Docks. This is a complete reference design, including all programming hardware required, so you can get to working within minutes, a prototype within hours, and (...)
Test report: PDF
電路圖: PDF
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

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