The MCP810 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 high reset and is available in a choice of seven different trip voltages. It operates over the extended industrial temperature range (-40°C/+85°C). MCP810 is available in a SOT23-3 package.

• Holds microcontroller in reset until supply voltage reaches stable operating voltage
• Resets microcontroller during power loss
• Precision monitoring of 3V, 3.3V and 5V systems
• Active low RESET pin (MCP809) or active high RESET (MCP810)
• Push-pull output
• Holds RESET for 350ms (typical)
• RESET to VDD = 1.0V
• Accuracy of +(-)125mV for 5V systems and +(-)75mV for 3V systems over temperature
• 45uA typical operating current
• Temp range:
  • Industrial (I): -40C to +85C