LM809M3-4.38/NOPB
TI(德州仪器)
主动器件
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
