The MCP809 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized. It also operates as protection from brown-out conditions when the supply voltage drops below a safe operating level. MCP809 has a CMOS push-pull output with active low reset and is available in a choice of seven different trip voltages. It operates over the extended industrial temperature range (-40°C/+85°C). MCP809 is available in a SOT23-3 package.
Parameter Name Value
Manual Reset No
Watchdog Timer No
Typical Reset Pulse Width (ms) 350
Reset Type Active Low
Typical Supply Current (uA) 45
Vcc Range Min (V) 1.0
Vcc Range Max (V) 5.5
Output Push-Pull
Temp Range Min. (°C) -40
Temp Range Max. (°C) +85
Nominal Reset Voltage (V) 4.60, 4.50, 4.35, 4.25, 3.00, 2.85, 2.55
