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IMP809MEUR-T ( 电源监控 )


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  • 1.5200元
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    浙江省 • 杭州
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The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits optimized for low-power microprocessor (μP), microcontroller (μC) and digital systems. The IMP809/810 are improved drop-in replacements for the Maxim MAX809/810 and feature 60% lower supply current.

A reset signal is issued if the power supply voltage drops below a preset reset threshold and is asserted for at least 140ms after the supply has risen above the reset threshold. The IMP809 has an active-low RESET output that is guaranteed to be in the correct state for VCC down to 1.1V. The IMP810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC.

Low supply current makes the IMP809/IMP810 ideal for use in portable and battery operated equipment. The IMP809/IMP810 are available in a compact 3-pin SOT23 package.

Six voltage thresholds are available to support 3V to 5V systems:
Reset Threshold SuffixV oltage (V)
L                              4.63
M                             4.38
J                              4.00
T                              3.08
S                              2.93
R                              2.63

■ Improved Maxim MAX809/MAX810 replacement
— Lower supply current…6μA
— 80% lower maximum supply current
■ Monitor 5V, 3.3V and 3V supplies
■ 140ms min. reset pulse width
■ Active-low reset valid with 1.1V supply (IMP809)
■ Small 3-pin SOT-23 package
■ No external components
■ Specified over full temperature range –40°C to 105°C