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Microcontroller Supervisory IC Application Note

A voltage detector with an individual SENSE pin and VDD pin require a circuit with two power supplies. However, such configuration depends on the application and two power supplies may not be available. Ricoh provides a product version ("H" Type) with an N-channel open drain output which offers a "H" reset signal instead of "L". Such "H" reset signal addresses a typical phenomenon at the output when sensing voltages below the minimum operating voltage of the voltage detector.
Compare R3111xxxxA/C versus the R3111xxxxB for details.

The N-channel open drain "H" Type ("H" Reset)

Products equipped with N-channel open drain "H" Type


You can download application notes in PDF format.

  • Voltage Regulator
    (11 pages/823KB)
  • Microcontroller Supervisory ICs
    (7 pages/579KB)
  • DC/DC Converter
    (7 pages/525KB)

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