AS1922

Features: ` Simultaneous Triple-Voltage Monitoring` Very-Low Supply Current: 6.5µA` ±1.5% Accuracy Over Temperature` Reset Time Delay: 200ms ` Power Supply Transient Immunity` Guaranteed Reset for VCC3 1V or VCC18 1V` Active-Low Push/Pull Reset Output (AS1920)` Active-Low Open-Drain Reset ...

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AS1922 Picture
SeekIC No. : 004288220 Detail

AS1922: Features: ` Simultaneous Triple-Voltage Monitoring` Very-Low Supply Current: 6.5µA` ±1.5% Accuracy Over Temperature` Reset Time Delay: 200ms ` Power Supply Transient Immunity` Guaranteed Reset...

floor Price/Ceiling Price

Part Number:
AS1922
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

` Simultaneous Triple-Voltage Monitoring
` Very-Low Supply Current: 6.5µA
` ±1.5% Accuracy Over Temperature
` Reset Time Delay: 200ms
` Power Supply Transient Immunity
` Guaranteed Reset for VCC3 1V or VCC18 1V
` Active-Low Push/Pull Reset Output (AS1920)
` Active-Low Open-Drain Reset Output (AS1922)
` 5-pin SOT23 Package





Application

The devices are ideal for personal computers, note- books, battery-powered systems, embedded controllers, intelligent instruments, automotive systems, critical CPU monitoring, and any multi-supply monitoring application.






Description

The AS1920 and AS1922 microprocessor supervisory circuits were designed to generate a reset when at least one of the three monitored supply voltages falls below its respective trip threshold.

These very-low-current (6.5A, typ) devices AS1922 maintain reset for a minimum timeout period after all supplies have stabilized. Guaranteed to be in the correct state for VCC down to 1.0V, these devices are perfect for multiple-voltage systems with low current requirements and strict monitoring requirements.

The devices are available with the following output types:

  • Model Output Type Supervisory Range
  • AS1920-18 Push/Pull 3.0V, 1.8V, Adjustable
  • AS1922-18 Open-Drain 3.0V, 1.8V, Adjustable

All devices monitor primary and secondary factory trimmed voltages. Additionally, a third monitoring voltage of AS1922 can be selected via an external resistor divider.

The AS1920 has an active-low push/pull reset output, whereas the AS1922 has an active-low open-drain reset output.

The AS1920 and AS1922 are available in a 5-pin SOT23 package.






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