Product/Service

3-Pin Microcontroller Power Supply Supervisor

Source: IMP, Inc
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
IMP, IncIMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits optimized for low-power microprocessor (µP), microcontroller (µC) and digital systems. IMP, Inc810 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 IMP, IncIMP810 ideal for use in portable and battery operated equipment. IMP, IncIMP810 are available in a compact 3-pin SOT23 package.

Features:

  • 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

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