ADM809TART-REEL7

3引脚微处理器监控电路， SC70和SOT -23 Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23

Product Details

The ADM809 supervisory circuit monitors the power supply voltage in microprocessor systems. It provides a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1V. The ADM809 provides an active-low reset signal RESET, and has a push-pull output stage.

Seven reset threshold options are available. The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC.

The ADM809 is available in 3-lead SOT-23 and SC70 and consumes only 17µA, making it suitable for low power portable equipment.

**Applications**

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Microprocessor systems

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Computers

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Controllers

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Intelligent instruments

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Automotive systems

### Features and Benefits

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Specified over Temperature

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Low Power Consumption 17 µA

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Precision Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V Options

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Reset Assertion Down to 1 V VCC

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140 ms Min Power-On Reset 

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Push-Pull RESET Output

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SC70 and SOT-23 Packages