Datasheet > DS1819AR-5

DS1819AR-5

更新时间： 2024-11-10 08:08:27

品牌	Logo	应用领域
达拉斯 - DALLAS		光电二极管
页数	文件大小	规格书
8页	110K
描述
Power Supply Management Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN

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中文翻译

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数据手册

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DS1819AR-5 数据手册

DS1814/DS1819

5-Volt and 3.3-Volt MicroMonitor

www.dalsemi.com

FEATURES

ꢀ Halts and restarts an out-of-control

microprocessor

PIN ASSIGNMENT

ꢀ Holds microprocessor in check during power

transients

ꢀ Automatically restarts microprocessor after

power failure

ꢀ Monitors pushbutton for external override

ꢀ Accurate 5%, 10%, or 20% (3-volt only)

microprocessor power monitoring

ꢀ Eliminates the need for discrete components

ꢀ 20% tolerance for use with 3.0-volt systems

ꢀ Pin- and function-compatible with the

MAX823/24/25 products

SOT-23-5 PACKAGE

See Mech. Drawing

PIN DESCRIPTION

DS181xA

RST

GND

Active Low Reset Output

Ground

ꢀ Low cost SOT-23-5 package

ꢀ Industrial temperature: -40°C to +85°C

PBRST

Pushbutton Reset Input

VCC

Strobe Input

Power Supply

DEVICE

RST

PBRST

DS181xA

DS181xB

DS181xC

x = "DS1814" for 5 volt devices

x = "DS1819" for 3 volt devices

DS181xB

RST

GND

RST

Active Low Reset Output

Ground

Active High Reset Output

VCC

Strobe Input

Power Supply

DS181xC

RST

GND

RST

Active Low Reset Output

Ground

Active High Reset Output

PBRST

VCC

Pushbutton Reset Input

Power Supply

DESCRIPTION

The DS1814 5-Volt MicroMonitor and the DS1819 3.3-Volt MicroMonitor monitor three vital conditions

for a microprocessor: power supply, software execution, and external override. First, a precision

temperature-compensated reference and comparator circuit monitor the status of V_CC. When an out-of-

tolerance condition occurs, an internal power-fail signal is generated which forces the reset(s) to an active

state. When V_CCreturns to an in-tolerance condition, the reset signal is kept in the active state for a

minimum of 140 ms to allow the power supply and processor to stabilize.

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与DS1819AR-5相关器件

型号	品牌	获取价格	描述	数据表
DS1819AR-5/T&R	MAXIM	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO5, 0.650 INCH, SOT-23, 5 PIN
DS1819AR-5/TR	ETC	获取价格	Power Supply Supervisor
DS1819AR-5+T&R	MAXIM	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO5, 0.650 INCH, LEAD FREE, SOT
DS1819AR-5T&R	DALLAS	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO5, SOT-23, 5 PIN
DS1819AR-5-U	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5, 0.650 INCH, SOT-23, 5 PIN
DS1819AR-5-U+	MAXIM	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO5, 0.650 INCH, LEAD FREE, SOT
DS1819B	DALLAS	获取价格	5V and 3.3V MicroMonitor
DS1819B	ADI	获取价格	5V及3.3V MicroMonitor
DS1819BR-10/T&R	MAXIM	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, +3VV, CMOS, PDSO5, SOT-23, 5 PIN
DS1819BR-10/TR	ETC	获取价格	Voltage Detector