Datasheet > SP730M-4.475

SP730M-4.475

更新时间： 2024-11-29 06:42:15

品牌	Logo	应用领域
西伯斯 - SIPEX		光电二极管
页数	文件大小	规格书
5页	83K
描述
Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, TO-236AB, SOT-23, 3 PIN

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SP730M-4.475 数据手册

Preliminary

SP730

Microprocessor Supervisory

Circuit with Pull Up Resistor

FEATURES

■ Holds Microcontroller in Reset

■ Reset Microcontroller during power loss

■ 4.375 Voltage Trip Point

GND

■ Active Low RESET Pin

■ Internal Pull-up Resistor

■ Holds RESET for 350ms (typical)

■ RESET to V_DD=1.0V

■ 45µA Typical Operating Current

■ Offered in a 3 Pin SOT-23 Package

SP730

3 Pin SOT-23

RESET

APPLICATIONS

■ Networking

■ Computer

■ Industrial Process Control

DESCRIPTION

The SP730 is a voltage supervisory device designed to keep a microcontroller in reset until the

system voltage has reached the proper level and stabilized. It also operates as protection from

brown-out conditions when the supply voltage drops below a safe operating level. TThe SP730

has an internal 5k pull-up resistor. Both devices have active low RESET pins. The SP730 has

an active low RESET pin and will assert the RESET signal whenever the voltage on the VDD pin

is below the trip-point voltage. The part is available in a small 3 pin SOT-23 package. Contact

factory for other volatage options. Contact factory for other trip voltage options.

TYPICAL APPLICATION CIRCUIT

Microcontroller

Bypass

Capacitor

®®

SP730

GND

MCLR

RESET

GND

Rev:A Date: 01/22/04

SP730 Microprocessor Supervisory Circuit

12 3 4 5

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