MCP112T-290E/TTG

更新时间： 2024-11-19 13:02:31

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数据手册

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MCP112T-290E/TTG 数据手册

MCP111/112

Micropower Voltage Detector

Features

Description

• Ultra-low supply current: 1.75 µA (max.)

• Precision monitoring options of:

The MCP111/112 are voltage-detecting devices

designed to keep a microcontroller in reset until the

system voltage has reached, and 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 a safe operating level. The MCP111 and

MCP112 are available in eight different trip voltages.

- 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 V_OUTpin:

- MCP111 active-low, open-drain

- MCP112 active-low, push-pull

• Available in SOT23-3, TO-92 and SC70 packages

• Temperature Range:

The MCP111 has an open-drain output with an active-

low pin (V_OUT). This device will assert V_OUTwhen the

voltage on the V_DDpin is below the trip-point voltage.

- Extended: –40°C to +125°C

(except MCP1XX-195)

The MCP112 has a push-pull output and will assert an

active-low signal (V_OUTpin) when the voltage on the

V_DDpin is below the trip-point voltage.

- Industrial: –40°C to +85°C (MCP1XX-195 only)

During operation, the output (V_OUT) remains at a logic-

high as long as V_DDis greater than the specified

threshold voltage. When V_DDfalls below the voltage

trip point, V_OUTis driven low.

Applications

• Critical µC and µP Power-monitoring Applications

• Computers

• Intelligent Instruments

Package Types

SOT23-3/SC-70

• Portable Battery-Powered Equipment

Block Diagram

V_DD

V_OUT

V_DD

Comparator

V_OUT

V_SS

Output

Driver

–

TO-92

Band Gap

Reference

OUT

V_SS

 2004 Microchip Technology Inc.

DS21889B-page 1

12 3 4 5 6 7...22

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