Diodes Incorporated
Back to MicroProcessor Supervisory IC / Reset IC / Voltage Detector

APX812

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The APX812 is a 4-terminal microprocessor supervisor IC with active high reset output and monitors the supply voltage to microprocessors. The APX812 asserts a reset signal to the microprocessor when the manual reset pin (MR) is brought low, whenever the supply voltage falls below its threshold level and at initial power-up. The reset is asserted for at least 240 ms after the MR pin is brought high or the supply voltage rises above the threshold voltage. A number of thresholds are available supporting the supervision of 2.5V, 3.0V, 3.3V and 5V supplies.

Feature(s)

  • Precision Monitor of 2.5V/3.0V/3.3V/5.0V power supply voltage
  • Full specified over temperature
  • Manual reset input
  • Available in four output configuration
  • Push-pull Active high reset APX812
  • Power-on reset generator with fixed delay time 200ms
  • Application(s)

  • Computers
  • Controllers
  • Intelligent Instruments
  • Critical ?P and ?C Power Monitoring
  • Portable/Battery-Powered Equipment
  • Product Specifications

    Product Parameters

    Fixed Detect Voltages (V) 2.25, 2.63, 2.93, 3.08, 4, 4.38, 4.63 V
    Adjustable Detect Voltage Reference Voltage (V) N/A V
    Number of Channels 1
    Minimum Operating Voltage (V) 1 V
    Maximum Input Voltage (V) 5.5 V
    Quiescent Current (µA) 20 µA
    Typical Time Delay (µs) 20 µs
    Reset Period (ms) 200 ms
    RESET Output (Active High) Yes (Active High)
    RESET Output (Active Low) No (Active Low)
    Manual RESET Yes
    Watchdog No
    Watchdog Time (s) None s
    Power Fail Comparator Threshold (V) None V
    Reset Output Topology Push-Pull
    Ambient Temperature Range  (°C) -40 to 85 °C

    Related Content

    Packages

    Technical Documents

    Recommended Soldering Techniques

    TN1.pdf

    Additional Technical Documents are available upon request:
    Application information, Evaluation board, and Other technical documents

    Request Documents

    RoHS CofC

    FAQs