Datasheet > DS1818

DS1818

更新时间： 2024-09-13 14:58:15

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
6页	110K
描述
3.3V、经济型复位芯片，带有手动复位按钮

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中文翻译

获取价格

数据手册

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DS1818 数据手册

DS1818

3.3V EconoReset with Pushbutton

BENEFITS AND FEATURES

• Improves Reliability of Processor Operation

o Temperature-Compensated Voltage

Monitor for Precise, Automated Power-

Fail Detection

PIN ASSIGNMENT

DALLAS

DS1818

Econo

Reset

o Automatically Restarts a Microprocessor

After Power Failure

o Maintains Reset for 150ms After V_CC

Returns to Tolerance for Processor

Stabilization

o Monitors Pushbutton for External

Override

TOP VIEW

SOT-23 PACKAGE

See Mech.

Drawings Section

On Website

1 2 3

o Active-Low Reset Output

BOTTOM VIEW

TO-92 PACKAGE

See Mech.

Drawings Section

On Website

• Efficient Open-Drain Output with Internal

5.5kΩ Pullup Resistor Saves Power and Space

o 35µA (max) Quiescent Current

• Allows for Easy Design with No Complicated

Settings

PIN DESCRIPTION

TO-92

o Fixed 3.3V Reset Threshold

o 5%, 10%, and 20% Tolerance Versions

Available

RST

V_CC

GND

Active Low Reset Output

Power Supply

Ground

• Operates in Most Commercial and Industrial

Environments

o -40°C to +85°C Operating Temperature

Range

SOT-23

RST

V_CC

GND

Active Low Reset Output

Power Supply

Ground

• MXD1818 Offers Improved Performance over

the DS1818

DESCRIPTION

The DS1818 EconoReset uses a precision temperature-compensated reference and comparator circuit to

monitor the status of the power supply (V_CC). When an out-of-tolerance condition is detected, an internal

power-fail signal is generated which forces reset to the active state. When V_CCreturns to an in-tolerance

condition, the reset signal is kept in the active state for approximately 150 ms to allow the power supply

and processor to stabilize.

The DS1818 also monitors a pushbutton on the reset output. If the reset line is pulled low, a reset is

generated upon release and the DS1818 output will be held in reset output low for typically 150 ms.

1 of 5

19-7559; Rev 1; 3/15

12 3 4 5 6

中文翻译

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与DS1818相关器件

型号	品牌	获取价格	描述	数据表
DS1818-10	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, BCY3, TO-92, 3 PIN
DS1818-10	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +2.88VV, CMOS, TO-92, 3 PIN
DS1818-10	DALLAS	获取价格	3.3V EconoReset with Pushbutton
DS1818-10/T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +2.88VV, TO-92, 3 PIN
DS1818-10+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +2.88VV, CMOS, ROHS COMPLIANT, TO-92, 3 PI
DS1818-10+T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +2.88VV, CMOS, ROHS COMPLIANT, TO-92, 3 PI
DS1818-15	ETC	获取价格	Logic IC
DS1818-20	DALLAS	获取价格	3.3V EconoReset with Pushbutton
DS1818-20	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, BCY3, TO-92, 3 PIN
DS1818-20+T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +2.55VV, CMOS, ROHS COMPLIANT, TO-92, 3 PI