AS1909 SUPERVISOR IC

Low-Voltage μP Supervisory Circuit, Open-Drain Reset

The AS1909 (open drain output with active low reset) is a low voltage supervisory circuit device. Reset thresholds are factory programmable between 1.6V and 2.5V in steps of 100mV. The duration of the reset is 1.5/30/150ms (typ) after the supply voltage has risen above the threshold. The device operates down to 0.7V.

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KEY FEATURES
  • Tiny package
  • Wide operating temperature range
  • KEY BENEFITS
    • Small footprint
    • Suitable for automotive applications
    AS1909 APPLICATIONS
    • Cordless and Mobile Phones
    • MP3 Players
    • CD and DVD Players
    • PDAs
    • Handheld Computers
    • Digital Cameras
    • Hard Drives
    • Applications Where Power Supply Supervisory Control is Required.
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AS1909 PRODUCT FACTS

Supervised voltages [V (IN1)]1.6 to 2.5
Supervised voltages [V (IN2)]
Supervised voltages [V (IN3)]
Supervised voltages [V (IN4)]
Inputs1
Push/Pull active low
Push/Pull active high
Open-Drain
Watchdog
Man. reset
Supply current [μA]2.6
Supply voltage [V]0.7 to 3.6
PackageSOT23-3