DS1818

更新时间： 2024-11-13 22:50:47

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
5页	63K
描述
3.3V EconoReset with Pushbutton

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中文翻译

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数据手册

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DS1818 数据手册

DS1818

3.3V EconoReset with Pushbutton

www.dalsemi.com

FEATURES

ꢀ Automatically restarts a microprocessor after

power failure

PIN ASSIGNMENT

ꢀ Monitors pushbutton for external override

ꢀ Maintains reset for 150 ms after V_CCreturns

to an in-tolerance condition

ꢀ Reduces need for discrete components

ꢀ Precision temperature-compensated voltage

reference and voltage sensor

SOT-23 PACKAGE

ꢀ Accurate 5%, 10% or 20% power monitoring

ꢀ Low-cost TO-92 or space saving surface

mount SOT-23 packages available

1 2 3

ꢀ Efficient open-drain output with internal

5.5 kΩ=pull-up resistor

ꢀ Operating temperature -40°C to +85°C

TO-92 PACKAGE

See Mech.

Drawings Section

PIN DESCRIPTION

TO-92

RST

V_CC

GND

Active Low Reset Output

Power Supply

Ground

SOT-23

RST

V_CC

GND

Active Low Reset Output

Power Supply

Ground

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.

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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