MCP130T-460I.pdfVIP

MCP120/130 Microcontroller Supervisory Circuit with Open Drain OutputFEATURES ? 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 k?) for MCP130 ? Holds RESET for 350 ms (typical) ? RESET to VCC = 1.0V ? Accuracy of ±125 mV for 5V systems and ±75 mV for 3V systems over temperature ? 45 μA typical operating current ? Temperature range: - Industrial (I): -40°C to +85°C DESCRIPTION The Microchip Technology Inc. MCP120/130 is a volt- age supervisory device designed to keep a microcon- troller in reset until the system voltage has reached the proper level and stabilized. It also operates as protec- tion 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 k? 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. PACKAGES BLOCK DIAGRAM VSS VDD RST VSS VDD VSS VDD RST VSS VDD RST VSS RST VDD TO-92 with ‘D’ Bondout TO-92 WITH ‘F’ BONDOUT TO-92 with ‘G’ Bondout TO-92 with ‘H’ Bondout SOT-23-3 MCP120 MCP130 MCP130 MCP120 MCP130 MCP120 MCP120 MCP130 RST VDD NC VSS 1 2 3 4 8 7 6 5 NC NC NC NC 150mil SOIC MCP120 MCP130 RST Delay Circuit Output Driver RESET VDD + - Comparator pull-up on MCP130 5k? internal Bandgap Reference only? 2001 Microchip Technology Inc. DS11184D MCP120/1301.0 ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* VDD 7.0V All inputs and outputs w.r.t. VSS -0.6V to VDD +1.0V Storage temperature -65°C to +150°C Ambient temp. with power applied -65°C to +125°C ESD protection on all pins ≥ 2 kV *Notice: Stresses above those listed under “Maximum R