主頁 電源管理 監控器和復位 IC 復位及看門狗 IC

TPS3619

正在供貨

適用于 RAM 保持模式的電池備份監控器

產品詳情

Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93, 4.55 Features Battery backup switchover, Manual reset capable, PFI/PFO, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 2.4 Iq (typ) (mA) 0.04 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 100 Watchdog timer WDI (s) None Supply voltage (min) (V) 1.65 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 Battery backup switchover, Manual reset capable, PFI/PFO, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 2.4 Iq (typ) (mA) 0.04 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 100 Watchdog timer WDI (s) None Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 85
VSSOP (DGK) 8 14.7 mm2 3 x 4.9
  • Supply Current of 40 μA (Max)
  • Battery-Supply Current of 100 nA (Max)
  • Precision Supply Voltage Monitor 3.3 V, 5 V, Other Options on Request
  • Backup-Battery Voltage Can Exceed VDD
  • Power On Reset Generator With Fixed 100-ms Reset Delay Time
  • Voltage Monitor For Power-Fail or Low-Battery Monitoring
  • Battery Freshness Seal (TPS3619)
  • Pin-For-Pin Compatible With MAX819, MAX703, and MAX704
  • 8-Pin MSOP Package
  • Temperature Range –40°C to +85°C
  • APPLICATIONS
    • Fax Machines
    • Set-Top Boxes
    • Advanced Voice Mail Systems
    • Portable Battery-Powered Equipment
    • Computer Equipment
    • Advanced Modems
    • Automotive Systems
    • Portable Long-Time Monitoring Equipment
    • Point-of-Sale Equipment

All other trademarks are the property of their respective owners
  • Supply Current of 40 μA (Max)
  • Battery-Supply Current of 100 nA (Max)
  • Precision Supply Voltage Monitor 3.3 V, 5 V, Other Options on Request
  • Backup-Battery Voltage Can Exceed VDD
  • Power On Reset Generator With Fixed 100-ms Reset Delay Time
  • Voltage Monitor For Power-Fail or Low-Battery Monitoring
  • Battery Freshness Seal (TPS3619)
  • Pin-For-Pin Compatible With MAX819, MAX703, and MAX704
  • 8-Pin MSOP Package
  • Temperature Range –40°C to +85°C
  • APPLICATIONS
    • Fax Machines
    • Set-Top Boxes
    • Advanced Voice Mail Systems
    • Portable Battery-Powered Equipment
    • Computer Equipment
    • Advanced Modems
    • Automotive Systems
    • Portable Long-Time Monitoring Equipment
    • Point-of-Sale Equipment

All other trademarks are the property of their respective owners

The TPS3619 and TPS3620 families of supervisory circuits monitor and control processor activity by providing backup-battery switchover for data retention of CMOS RAM.

During power on, RESET is asserted when the supply voltage (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET output 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 starts after VDD has risen above VIT. When the supply voltage drops below VIT, the output becomes active (low) again.

The product spectrum is designed for supply voltages of 3.3 V and 5 V. The TPS3619 and TPS3620 are available in an 8-pin MSOP package and are characterized for operation over a temperature range of
–40°C to +85°C.

The TPS3619 and TPS3620 families of supervisory circuits monitor and control processor activity by providing backup-battery switchover for data retention of CMOS RAM.

During power on, RESET is asserted when the supply voltage (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET output 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 starts after VDD has risen above VIT. When the supply voltage drops below VIT, the output becomes active (low) again.

The product spectrum is designed for supply voltages of 3.3 V and 5 V. The TPS3619 and TPS3620 are available in an 8-pin MSOP package and are characterized for operation over a temperature range of
–40°C to +85°C.
下載 觀看帶字幕的視頻 視頻

您可能感興趣的相似產品

open-in-new 比較替代產品
功能與比較器件相似
TPS38-Q1 正在供貨 具有超低靜態電流和延時功能的汽車類 65V 雙通道監控器 Up to two channel monitor with lower quiescent current (1.0μA)

技術文檔

star =有關此產品的 TI 精選熱門文檔
未找到結果。請清除搜索并重試。
查看全部 8
類型 標題 下載最新的英語版本 日期
* 數據表 Backup-Battery Supervisors for RAM Retention 數據表 (Rev. H) 2007年 12月 4日
應用手冊 Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 2020年 3月 17日
選擇指南 Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 2020年 2月 28日
電子書 電壓監測儀和電壓檢測器：提示、技巧和基礎知識 英語版 2019年 8月 28日
應用手冊 Using the TPS3619 With MSP430 Microcontrollers (Rev. B) PDF | HTML 2018年 8月 6日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
選擇指南 電源管理指南 2018 (Rev. R) 2018年 6月 25日
技術文章 Charge pumps: An often unconsidered method of DC/DC conversion PDF | HTML 2015年 7月 17日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

模擬工具

PSPICE-FOR-TI — PSpice? for TI 設計和仿真工具

PSpice? for TI 可提供幫助評估模擬電路功能的設計和仿真環境。此功能齊全的設計和仿真套件使用 Cadence? 的模擬分析引擎。PSpice for TI 可免費使用，包括業內超大的模型庫之一，涵蓋我們的模擬和電源產品系列以及精選的模擬行為模型。

借助?PSpice for TI 的設計和仿真環境及其內置的模型庫，您可對復雜的混合信號設計進行仿真。創建完整的終端設備設計和原型解決方案，然后再進行布局和制造，可縮短產品上市時間并降低開發成本。?

在?PSpice for TI 設計和仿真工具中，您可以搜索 TI (...)
發送申請
封裝 引腳 CAD 符號、封裝和 3D 模型
VSSOP (DGK) 8 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

支持和培訓

視頻