General Description

The TCM809 and TCM810 are cost-effective system supervisor circuits designed to monitor VDD in digital systems and provide a reset signal to the host processor, when necessary. No external components are required.

Features

• Precision VDD Monitor for 2.5V, 3.0V, 3.3V, 5.0V Nominal System Voltage Supplies

• 140 msec Minimum RESET Time Out Period

• RESET Output to VDD = 1.0V (TCM809)

• Low Supply Current, 9 µA (typ.)

• VDD Transient Immunity

• Small 3-Pin SC-70 and SOT-23B Packages

• No External Components

• Push-Pull RESET Output

• Temperature Range:

- Industrial, SC-70 (E): -40°C to +85°C

- Extended, SOT-23, SC-70 (V): -40°C to +125°C

Applications

• Computers

• Embedded Systems

• Battery-Powered Equipment

• Critical Microcontroller Power Supply Monitoring

• Automotive