MCP120 Datasheet | Microchip Technology

MCP120/130 Microcontroller Supervisory Circuit with Open Drain Output Features - Holds microcontroller in reset until supply voltage reaches stable operating level - Resets microcontroller during power loss - Precision monitoring of 3V, 3.3V and 5V systems - 7 voltage trip points available - Active low RESET pin - Open drain output - Internal pull-up resistor (5 kΩ) for MCP130 - Holds RESET for 350 ms (typical) - RESET to VCC = 1.0V - Accuracy of ±125 m V for 5V systems and ±75 m V for 3V systems over temperature - 45 µA typical operating current - Temperature range: - Industrial (I): -40°C to +85°C PACKAGES TO-92 with ‘D’ Bondout TO-92 WITH ‘F’ BONDOUT VSS VDD VDD RST MCP120 MCP130 MCP130 TO-92 with ‘G’ Bondout TO-92 with ‘H’ Bondout DESCRIPTION The Microchip Technology Inc. MCP120/130 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. Both devices are available with a choice of seven different trip voltages and both have open drain outputs. The MCP130 has an internal 5 kΩ pullup resistor. Both devices have active low RESET pins. The MCP120/130 will assert the RESET signal whenever the voltage on the VDD pin is below the trip-point voltage. VDD VSS VSS RST MCP120 MCP130 SOT-23-3 150mil...