AS1923 SUPERVISOR IC

Quad-Voltage Supervisory Circuit

The AS1923 (open drain output with active low reset) monitors up to 4 supply rails with factory trimmed reset thresholds (also externally tunable) and operational accuracy to 5 or 10%. The IC operates down to 1V and draws 55uA typ.

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KEY FEATURES
  • Monitors 4 supply rails
  • Tiny package
  • Factory programmable thresholds
  • KEY BENEFITS
    • Monitor all system supply rails
    • Small footprint
    • Customisable
    AS1923 APPLICATIONS
    • Portable & Battery Powered Systems
    • Embedded Controllers
    • Intelligent Instruments
    • Automotive Systems
    • Embedded Controllers
    • Critical CPU Monitoring
    • Multi-Supply Applications
(click to enlarge)


AS1923 PRODUCT FACTS

Supervised voltages [V (IN1)]5.0, Adj.
Supervised voltages [V (IN2)]3.3, 3.0
Supervised voltages [V (IN3)]2.5, 1.8, Adj
Supervised voltages [V (IN4)]-5.0, 1.8, Adj
Inputs4
Push/Pull active low
Push/Pull active high
Open-Drain
Watchdog
Man. reset
Supply current [μA]6.5
Supply voltage [V]1.0 to 3.6
PackageSOT23-5