LM809

現行

具低電位作動、推拉重設功能的 3 接腳電壓監控器 (重設 IC),適用電源監控

產品詳細資料

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 Supply voltage (min) (V) 1 Supply voltage (max) (V) 5.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 105
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 Supply voltage (min) (V) 1 Supply voltage (max) (V) 5.5 Rating Catalog Watchdog timer WDI (s) None 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.

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技術文件

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類型 標題 日期
* Data sheet LM809/LM810 3-Pin Microprocessor Reset Circuits datasheet (Rev. E) PDF | HTML 2016年 4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
Technical article Using low-Iq voltage supervisors to extend battery life in handheld electronics PDF | HTML 2019年 9月 27日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Technical article Selecting voltage detectors, supervisors, and reset ICs for system safety: part 1 PDF | HTML 2016年 10月 17日
EVM User's guide TLV8xxxEVM-019 Evaluation Modules User's Guide 2011年 4月 8日

設計與開發

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模擬型號

LM809_2P45 PSpice Transient Model

SNVMA43.ZIP (41 KB) - PSpice Model
模擬型號

LM809_2P45 Unencrypted PSpice Transient Model

SNVMA42.ZIP (2 KB) - PSpice Model
模擬型號

LM809_2P63 PSpice Transient Model

SNVMA40.ZIP (41 KB) - PSpice Model
模擬型號

LM809_2P63 Unencrypted PSpice Transient Model

SNVMA41.ZIP (2 KB) - PSpice Model
模擬型號

LM809_2P93 PSpice Transient Model

SNVMA38.ZIP (41 KB) - PSpice Model
模擬型號

LM809_2P93 Unencrypted PSpice Transient Model

SNVMA39.ZIP (2 KB) - PSpice Model
模擬型號

LM809_3P08 PSpice Transient Model

SNVMA35.ZIP (41 KB) - PSpice Model
模擬型號

LM809_3P08 Unencrypted PSpice Transient Model

SNVMA34.ZIP (2 KB) - PSpice Model
模擬型號

LM809_4P0 PSpice Transient Model

SNVMA44.ZIP (41 KB) - PSpice Model
模擬型號

LM809_4P0 Unencrypted PSpice Transient Model

SNVMA45.ZIP (2 KB) - PSpice Model
模擬型號

LM809_4P38 PSpice Transient Model

SNVMA36.ZIP (43 KB) - PSpice Model
模擬型號

LM809_4P38 Unencrypted PSpice Transient Model

SNVMA37.ZIP (2 KB) - PSpice Model
模擬型號

LM809_4P63 PSpice Transient Model

SNVMA33.ZIP (41 KB) - PSpice Model
模擬型號

LM809_4P63 Unencrypted PSpice Transient Model

SNVMA32.ZIP (2 KB) - PSpice Model
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 (...)
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  • 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

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