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The MCP111/112 are voltage-detecting devices designed to keep a microcontroller in reset until the system voltage has stabilized at the appropriate level for reliable system operation. These devices also operate as protection from brown-out conditions when the system supply voltage drops below the specified threshold voltage level. Eight different trip voltages are available.
MCP111 Maximum Ratings
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0V Input current (VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 mA Output current (RST) . . . . . . . . . . . . . . . . . . . . . . . . . .. 10 mA Rated Rise Time of VDD . . . . . . . . . . . . . . . . . . . . . . . 100V/s All inputs and outputs (except RST) w.r.t. VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to (VDD + 1.0V) RST output w.r.t. VSS . . . . . . . . . . . . . . . . . . . -0.6V to 13.5V Storage temperature . . . . . . . . . . . . . . . . . . 65°C to + 150°C Ambient temp. with power applied . . . . . . . -40°C to + 125°C Maximum Junction temp. with power applied . . . . . . . . 150°C ESD protection on all pins . . . . . . . . . . . . . . . . . . . . . . . 2 kV † Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
MCP111 Features
• Ultra-low supply current: 1.75 A (max.) • Precision monitoring options of: - 1.90V, 2.32V, 2.63V, 2.90V, 2.93V, 3.08V, 4.38V and 4.63V • Resets microcontroller in a power-loss event • Active-low VOUT pin: - MCP111 active-low, open-drain - MCP112 active-low, push-pull • Available in SOT23-3, TO-92, SC-70 and SOT-89-3 packages • Temperature Range: - Extended: -40°C to +125°C (except MCP1XX-195) - Industrial: -40°C to +85°C (MCP1XX-195 only) • Pb-free devices