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

立即訂購

產品規格表

document-pdfAcrobat LM809/LM810 3-Pin Microprocessor Reset Circuits datasheet (Rev. E) (英文) PDF | HTML

LM809

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)

2.63, 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 V_CC ≥ 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 V_CC ≥ 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 V_CC 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 V_CC 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 V_CC 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 V_CC 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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TLV809E

現行

具有低電位作動推挽輸出的低功耗電壓監控器 (重設 IC) Lower quiescent current (250 nA) and enhanced reset threshold accuracy

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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

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LM809

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

LM809

產品詳細資料

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