ZSM561

更新时间： 2024-01-01 17:04:16

品牌	Logo	应用领域
捷特科 - ZETEX		监控监视器
页数	文件大小	规格书
6页	150K
描述
SUPPLY VOLTAGE MONITOR

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中文翻译

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数据手册

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ZSM561 数据手册

SUPPLY VOLTAGE

MONITOR

ZSM561

ISSUE 3 – JANUARY 1998

DEVICE DESCRIPTION

FEATURES

The ZSM561 is a three terminal under

voltage monitor circuit for use in

microprocessor systems. The threshold

voltage of the device hasbeen set to 4.6 volts

making it ideal for 5 volt circuits.

SO8, SOT223 and TO92 packages

Power on reset generator

Automatic reset generation

Low standby current

•

Guaranteed operation from 1 volt

Wide supply voltage range

Included in the device is a precise voltage

reference and a comparator with built in

hysteresis to prevent erratic operation. The

ZSM561 features an open collector output

capable of sinking at least l0mA which only

requires a single external resistor to

interface to following circuits.

Internal clamp diode to discharge

delay capacitor

4.6 volt threshold for 5 volt logic

•

20mV hysteresis prevents erratic operation

APPLICATIONS

Operation of the device is guaranteed from

one volt upwards, from this level to the

device threshold voltage the output is held

low providing a power on reset function.

Shouldthesupplyvoltage, onceestablished,

at any time drop below the threshold level

then the output again will pull low. Also

included is a 6 volt zener diode connected

between Vcc and Gnd. With just the addition

of a low cost external NPN transistor and

resistor, this zener allows the ZSM561 to

provide both regulator and supply monitor

functions

Microprocessor systems

•

Computers

•

Computer peripherals

•

Instrumentation

•

Automotive

•

Battery powered equipment

•

The device is available in a TO92 package for

through hole applicationsaswell asSO8 and

SOT223 for surface mount requirements.

SCHEMATIC DIAGRAM

4-364

12 3 4 5 6

中文翻译

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