Datasheet > MCP121T-450I/LB

MCP121T-450I/LB

更新时间： 2024-11-29 03:58:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		监控
页数	文件大小	规格书
28页	403K
描述
Micropower Voltage Supervisors

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中文翻译

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数据手册

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MCP121T-450I/LB 数据手册

MCP102/103/121/131

Micropower Voltage Supervisors

Features

Package Types

• Ultra low supply current: 1.75 µA

(steady-state max.)

SOT23-3/SC-70

TO-92

•

Precision monitoring options of:

RST

V_DD

- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V

and 4.63V

V_SS

RST

• Resets microcontroller in a power-loss event

• RST pin (Active-low):

V_SS

V_DD

- MCP121: Active-low, open-drain

- MCP131: Active-low, open-drain with internal

pull-up resistor

SOT23-3/SC-70

- MCP102 and MCP103: Active-low, push-pull

V_SS

• Reset Delay Timer (120 ms delay, typ.)

• Available in SOT23-3, TO-92 and SC-70

packages

V_DD

•

Temperature Range:

RST

- Extended: -40°C to +125°C

(except MCP1XX-195)

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

• Pb-free devices

Block Diagram

V_DD

Applications

• Critical Microcontroller and Microprocessor

Power-monitoring Applications

R ⁽¹⁾

Comparator

• Computers

–

Reset

Output

Driver

• Intelligent Instruments

• Portable Battery-powered Equipment

Delay

RST

Circuit

General Description

Band Gap

Reference

The MCP102/103/121/131 are voltage supervisor

devices designed to keep a microcontroller in reset

until the system voltage has reached and stabilized at

the proper level for reliable system operation. Table 1

shows the available features for these devices.

V_SS

Note 1: MCP131 Only

TABLE 1:

DEVICE FEATURES

Output

Reset

Delay (typ)

Package Pinout

(Pin # 1, 2, 3)

Device

Comment

Type

Pull-up Resistor

MCP102 Push-pull

MCP103 Push-pull

120 ms

RST, V_DD, V_SS

VSS, RST, V_DD

RST, V_DD, V_SS

V_OUT, V_SS, V_DD

MCP121 Open-drain External

MCP131 Open-drain Internal (~95 kΩ) 120 ms

MCP111 Open-drain External

See MCP111/112 Data Sheet

(DS21889)

MCP112 Push-Pull No

V_OUT, V_SS, V_DD

See MCP111/112 Data Sheet

(DS21889)

DS21906B-page 1

12 3 4 5 6 7...28

中文翻译

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