MCP121 Series

1uA Supervisor Open Drain Active Low

Catalog

1uA Supervisor Open Drain Active Low

Part	Voltage - Threshold	Reset Timeout [Min]	Reset	Mounting Type	Output	Operating Temperature [Min]	Operating Temperature [Max]	Type	Supplier Device Package	Number of Voltages Monitored	Package / Case	Qualification	Grade
Microchip Technology MCP121-315E/TO	3.08 V	80 ms	Active Low	Through Hole	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	TO-92-3	1	TO-226-3 TO-92-3
Microchip Technology MCP121T-315E/TTVAO	3.08 V	80 ms	Active Low	Surface Mount	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	SOT-23-3	1	SC-59 SOT-23-3 TO-236-3	AEC-Q100	Automotive
Microchip Technology MCP121T-270E/LB	2.63 V	80 ms	Active Low	Surface Mount	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	SC-70-3	1	SC-70 SOT-323
Microchip Technology MCP121T-315E/TT	3.08 V	80 ms	Active Low	Surface Mount	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	SOT-23-3	1	SC-59 SOT-23-3 TO-236-3
Microchip Technology MCP121-475E/TO	4.63 V	80 ms	Active Low	Through Hole	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	TO-92-3	1	TO-226-3 TO-92-3
Microchip Technology MCP121T-475E/TT	4.63 V	80 ms	Active Low	Surface Mount	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	SOT-23-3	1	SC-59 SOT-23-3 TO-236-3
Microchip Technology MCP121-270E/TO	2.63 V	80 ms	Active Low	Through Hole	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	TO-92-3	1	TO-226-3 TO-92-3
Microchip Technology MCP121T-240E/LB	2.32 V	80 ms	Active Low	Surface Mount	Open Drain or Open Collector	-40 °C	125 °C	Simple Reset/Power-On Reset	SC-70-3	1	SC-70 SOT-323
Microchip Technology MCP121T-195I/TT	1.9 V	80 ms	Active Low	Surface Mount	Open Drain or Open Collector	-40 °C	85 °C	Simple Reset/Power-On Reset	SOT-23-3	1	SC-59 SOT-23-3 TO-236-3
Microchip Technology MCP121-195I/TO	1.9 V	80 ms	Active Low	Through Hole	Open Drain or Open Collector	-40 °C	85 °C	Simple Reset/Power-On Reset	TO-92-3	1	TO-226-3 TO-92-3

Catalog

1uA Supervisor Open Drain Active Low

Key Features

• * Operating current: 1.75uA (max)

• * Wide Voltage range: 1.0V to 5.5V

• * Available Trip Points: 1.9V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V, 4.63V

• * Trip point accuracy: +/- 1.5%

• * Output Options: Open-Drain

• * Package options: SOT23-3, SC70-3, TO92-3

Description

The MCP121 Series of CMOS voltage detectors are well suited for many portable and consumer electrics applications due to the extremely low 1uA operating current and small surface-mount packaging. These devices are designed to hold the microcontroller in reset until the supply voltage reaches a predetermined operating level. These devices also protect against brownout conditions that occur as a result of the supply voltage dropping below a tolerable level.