主頁 電源管理 監(jiān)控器和復(fù)位 IC 復(fù)位及看門狗 IC

LM809

正在供貨

具有低電平有效推挽復(fù)位功能、用于監(jiān)控電源的 3 引腳電壓監(jiān)控器（復(fù)位 IC）

產(chǎn)品詳情

Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.93, 3.08, 4.38, 4.63 Features Ease-of-use Reset threshold accuracy (%) 5 Iq (typ) (mA) 0.015 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 240 Watchdog timer WDI (s) None Supply voltage (min) (V) 1 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 105
Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.93, 3.08, 4.38, 4.63 Features Ease-of-use Reset threshold accuracy (%) 5 Iq (typ) (mA) 0.015 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 240 Watchdog timer WDI (s) None Supply voltage (min) (V) 1 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 105
SOT-23 (DBZ) 3 6.9204 mm2 2.92 x 2.37
  • Precision Monitoring of Supply Voltages
    • Available Threshold Options:
      2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Superior Upgrade to MAX809 and MAX810
  • Fully Specified Over Temperature
  • 140-ms Minimum Power-On Reset Pulse Width,
    240-ms Typical
    • Active-Low RESET Output (LM809)
    • Active-High RESET Output (LM810)
  • Ensured RESET Output Valid for VCC ≥ 1 V
  • Low Supply Current, 15-μA Typical
  • Power Supply Transient Immunity
  • Precision Monitoring of Supply Voltages
    • Available Threshold Options:
      2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Superior Upgrade to MAX809 and MAX810
  • Fully Specified Over Temperature
  • 140-ms Minimum Power-On Reset Pulse Width,
    240-ms Typical
    • Active-Low RESET Output (LM809)
    • Active-High RESET Output (LM810)
  • Ensured RESET Output Valid for VCC ≥ 1 V
  • Low Supply Current, 15-μA Typical
  • Power Supply Transient Immunity

The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.

The function of the LM809 and LM810 are to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240 ms after VCC rises above the threshold. The LM809 has an active-low RESET output, while the LM810 has an active-high RESET output.

Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages.

With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.

The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.

The function of the LM809 and LM810 are to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240 ms after VCC rises above the threshold. The LM809 has an active-low RESET output, while the LM810 has an active-high RESET output.

Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages.

With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.
下載 觀看帶字幕的視頻 視頻

您可能感興趣的相似產(chǎn)品

功能優(yōu)于所比較器件的普遍直接替代產(chǎn)品
TLV809E 正在供貨 具有低電平有效推挽輸出的低功耗電壓監(jiān)控器（復(fù)位 IC） Lower quiescent current (250 nA) and enhanced reset threshold accuracy

技術(shù)文檔

star =有關(guān)此產(chǎn)品的 TI 精選熱門文檔
未找到結(jié)果。請清除搜索并重試。
查看全部 9
類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 LM809/LM810 3-Pin Microprocessor Reset Circuits 數(shù)據(jù)表 (Rev. E) PDF | HTML 2016年 4月 20日
應(yīng)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
技術(shù)文章 Using low-Iq voltage supervisors to extend battery life in handheld electronics PDF | HTML 2019年 9月 27日
電子書 電壓監(jiān)測儀和電壓檢測器：提示、技巧和基礎(chǔ)知識 英語版 2019年 8月 28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(shù)文章 Selecting voltage detectors, supervisors, and reset ICs for system safety: part 1 PDF | HTML 2016年 10月 17日
EVM 用戶指南 TLV8xxxEVM-019 Evaluation Modules User's Guide 2011年 4月 8日

設(shè)計和開發(fā)

如需其他信息或資源，請點擊以下任一標(biāo)題進(jìn)入詳情頁面查看（如有）。

仿真模型

LM809_2P45 PSpice Transient Model

SNVMA43.ZIP (41 KB) - PSpice Model
下載
仿真模型

LM809_2P45 Unencrypted PSpice Transient Model

SNVMA42.ZIP (2 KB) - PSpice Model
下載
仿真模型

LM809_2P63 PSpice Transient Model

SNVMA40.ZIP (41 KB) - PSpice Model
下載
仿真模型

LM809_2P63 Unencrypted PSpice Transient Model

SNVMA41.ZIP (2 KB) - PSpice Model
下載
仿真模型

LM809_2P93 PSpice Transient Model

SNVMA38.ZIP (41 KB) - PSpice Model
下載
仿真模型

LM809_2P93 Unencrypted PSpice Transient Model

SNVMA39.ZIP (2 KB) - PSpice Model
下載
仿真模型

LM809_3P08 PSpice Transient Model

SNVMA35.ZIP (41 KB) - PSpice Model
下載
仿真模型

LM809_3P08 Unencrypted PSpice Transient Model

SNVMA34.ZIP (2 KB) - PSpice Model
下載
仿真模型

LM809_4P0 PSpice Transient Model

SNVMA44.ZIP (41 KB) - PSpice Model
下載
仿真模型

LM809_4P0 Unencrypted PSpice Transient Model

SNVMA45.ZIP (2 KB) - PSpice Model
下載
仿真模型

LM809_4P38 PSpice Transient Model

SNVMA36.ZIP (43 KB) - PSpice Model
下載
仿真模型

LM809_4P38 Unencrypted PSpice Transient Model

SNVMA37.ZIP (2 KB) - PSpice Model
下載
仿真模型

LM809_4P63 PSpice Transient Model

SNVMA33.ZIP (41 KB) - PSpice Model
下載
仿真模型

LM809_4P63 Unencrypted PSpice Transient Model

SNVMA32.ZIP (2 KB) - PSpice Model
下載
模擬工具

PSPICE-FOR-TI — PSpice? for TI 設(shè)計和仿真工具

PSpice? for TI 可提供幫助評估模擬電路功能的設(shè)計和仿真環(huán)境。此功能齊全的設(shè)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(yè)內(nèi)超大的模型庫之一，涵蓋我們的模擬和電源產(chǎn)品系列以及精選的模擬行為模型。

借助?PSpice for TI 的設(shè)計和仿真環(huán)境及其內(nèi)置的模型庫，您可對復(fù)雜的混合信號設(shè)計進(jìn)行仿真。創(chuàng)建完整的終端設(shè)備設(shè)計和原型解決方案，然后再進(jìn)行布局和制造，可縮短產(chǎn)品上市時間并降低開發(fā)成本。?

在?PSpice for TI 設(shè)計和仿真工具中，您可以搜索 TI (...)
發(fā)送申請
封裝 引腳 CAD 符號、封裝和 3D 模型
SOT-23 (DBZ) 3 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)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(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

支持和培訓(xùn)

視頻