ADM809SARTZ-REEL7 – Low-Voltage Microprocessor Supervisor with Watchdog Timer

The ADM809SARTZ-REEL7 is a low-voltage microprocessor supervisor with a built-in watchdog timer, designed to monitor power supplies and system resets in microprocessor-based systems. It ensures reliable operation and system safety by providing reset outputs when system voltages fall below a predefined threshold.

Product Brochure

Description

Technical Specifications:

  • Supply Voltage: 1.8V to 5.5V
  • Reset Threshold Voltage: Adjustable
  • Reset Pulse Duration: 140 ms (typical)
  • Watchdog Timeout Period: 1.6 seconds (typical)
  • Supply Current (Icc): 3 µA (typical)
  • Reset Output: Active low reset
  • Package Type: 6-lead SOT-23
  • Operating Temperature Range: -40°C to +125°C
  • Applications: Ideal for microprocessor systems, embedded systems, portable electronics, battery-powered devices, and automotive applications where reliable operation and reset functionality are critical.

Product Features:

  • Low-Voltage Detection: Monitors supply voltages as low as 0.8V, ensuring system stability and protection from undervoltage conditions.
  • Watchdog Timer: Includes a built-in watchdog timer to monitor system operation, ensuring recovery from malfunctioning microprocessors by issuing a reset.
  • Precise Voltage Thresholds: Adjustable threshold voltage levels, allowing users to customize voltage detection based on specific system requirements.
  • Low Power Consumption: Designed for ultra-low power consumption (Icc typically 3 µA), making it ideal for battery-powered applications.
  • Built-in Reset Output: Provides a reset signal output when supply voltage falls below the predefined threshold, enhancing system reliability.
  • Wide Supply Voltage Range: Operates with a supply voltage range from 1.8V to 5.5V, offering flexibility for various system designs.
  • Automatic Reset: Automatically generates a reset when power is applied or after a power failure, ensuring the system starts in a safe state.
  • Small Package: Available in a compact 6-lead SOT-23 package, ideal for space-constrained applications.
  • Operating Temperature Range: -40°C to +125°C, allowing reliable performance across a wide range of temperatures.

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