LM809M3-4.38/NOPB

TEXAS INSTRUMENTS  LM809M3-4.38/NOPB  微控制器复位电路, 低电平有效复位, 1.2V-5.5V输入, SOT-23-3

The is a 3-pin Microprocessor Supervisory Circuit with active-low RESET output. The supervisory circuit can be used to monitor the power supplies in microprocessor and digital systems. It provides a reset to the microprocessor during power-up, power-down and brownout conditions. The function of the LM809 is 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 240ms after VCC rises above the threshold.

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Power supply transient immunity

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Fully specified over-temperature

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Ensured RESET output valid for VCC >= 1V

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Superior upgrade to MAX809 and MAX810

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140ms Minimum power-ON reset pulse width

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15µA Typical low supply current

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Green product and no Sb/Br