General Description

The TCM811 and TCM812 are cost effective system supervisory circuits designed to monitor V DD in digital systems and provide a reset signal to the host controller when necessary. A manual reset input is provided to override the reset monitor and is suitable for use as a push-button reset. No external components are required.

Features

• Precision VDD Monitor for 2.0V, 2.8V, 3.0V, 3.3V, 5.0V Nominal Supplies

• Manual Reset Input

• 140 ms Minimum RESET Output Duration

• RESET Output Valid to VDD = 1.0V (TCM811)

• Low 6 µA (typ.) Supply Current

• VDD Transient Immunity

• Small 4-Pin SOT-143 Package

• No External Components

• Replacement for MAX811/812 and Offers a Lower Threshold Voltage Option

• Push-Pull RESET Output

• Temperature Range:

   - Commercial (C) -40°C to +85°C

Applications

• Computers

• Embedded Systems

• Battery Powered Equipment

• Critical Microcontroller Power Supply Monitoring