MCP121T-450ELB Microchip

MCP102/103/121/131 Micropower Voltage Supervisors Features: General Description: The MCP102/103/121/131 devices are voltage Ultra-Low Supply Current: 1.75 A supervisor devices designed to keep a microcontroller (steady-state maximum) in reset until the system voltage has reached and Precision Monitoring Options of: stabilized at the proper level for reliable system - 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and operation. Table 1 shows the available features for 4.63V these devices. Resets Microcontroller in a Power-Loss Event RST Pin (active-low): Package Types - MCP121: Active-low, Open-drain SOT-23/SC70 TO-92 - MCP131: Active-low, Open-drain with Inter- nal Pull-up Resistor - MCP102 and MCP103: Active-low, Push-pull 1 RST Reset Delay Timer (120 ms delay, typical) V Available in SOT-23, TO-92 and SC70 Packages 3 SS RST V V SS DD Temperature Range: V - Extended: -40C to +125C 2 DD (except MCP1XX-195) - Industrial: -40C to +85C (MCP1XX-195 only) SOT-23/SC70 Pb-free Devices Applications: V 1 SS Critical Microcontroller and Microprocessor V Power-monitoring Applications 3 DD Computers Intelligent Instruments RST 2 Portable Battery-powered Equipment Block Diagram V DD (1) R Comparator + Reset Output Delay Driver RST Circuit Band Gap Reference Note: MCP131 only V SS 2004-2014 Microchip Technology Inc. DS20001906D-page 1 MCP102/121/131 MCP103MCP102/103/121/131 TABLE 1: DEVICE FEATURES Output Reset Package Pinout Device Delay Comment (Pin 1, 2, 3) Type Pull-up Resistor (typ) MCP102 Push-pull No 120 ms RST, V , V DD SS MCP103 Push-pull No 120 ms V , RST, V SS DD MCP121 Open-drain External 120 ms RST, V , V DD SS MCP131 Open-drain Internal (~95 k)120ms RST, V , V DD SS MCP111 Open-drain External No V , V , V See MCP111/112 Data Sheet OUT SS DD (DS21889) MCP112 Push-Pull No No V , V , V See MCP111/112 Data Sheet OUT SS DD (DS21889) DS20001906D-page 2 2004-2014 Microchip Technology Inc.