ZSH330C Diodes Zetex, ZSH330C Datasheet

ZSH330C

Manufacturer Part Number

ZSH330C

Description

IC MONITOR SUPPLY 3.3V TO92-3

Manufacturer

Diodes Zetex

Type

Simple Reset/Power-On Resetr

Datasheet

1.ZSH330C.pdf (5 pages)

Specifications of ZSH330C

Number Of Voltages Monitored

Output

Open Drain or Open Collector

Reset

Active High

Reset Timeout

1.4 µs Typical Propagation Delay

Voltage - Threshold

3.1V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Through Hole

Package / Case

TO-92-3 (Standard Body), TO-226

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Current page: 1 of 5
Download datasheet (88Kb)

SUPPLY VOLTAGE

MONITOR

ISSUE 2- JANUARY 2003

DEVICE DESCRIPTION

The ZSH330 is a three terminal under voltage

monitor circuit for use in microprocessor

systems. The threshold voltage of the device

has been set to 3.1 volts making it ideal for

3.3 volt circuits.

Included in the device is a precise voltage

reference and a comparator with built in

hysteresis to prevent erratic operation. The

ZSH330 features an open collector output

capable of sourcing at least l0mA which only

requires a single external resistor to

interface to following circuits.

Operation of the device is guaranteed from

one volt upwards, from this level to the

device threshold voltage the output is held

high providing a power on reset function.

Should the supply voltage, once established,

at any time drop below the threshold level

then the output again will pull high.

The device is available in a TO92 package for

through hole applications as well as SOT223

for surface mount requirements.

SCHEMATIC DIAGRAM

4-329

FEATURES

•

APPLICATIONS

•

Vcc

Out

Gnd

SOT223 and TO92 packages

Power on reset generator

Automatic reset generation

Low standby current

Guaranteed operation from 1 volt

Wide supply voltage range

Internal clamp diode to discharge delay

capacitor

3.1 volt threshold for 3.3 volt logic

20mV hysteresis prevents erratic operation

Microprocessor systems

Computers

Computer peripherals

Instrumentation

Automotive

Battery powered equipment

ZSH330

Related parts for ZSH330C

ZSH330C Summary of contents

Page 1

SUPPLY VOLTAGE MONITOR ISSUE 2- JANUARY 2003 DEVICE DESCRIPTION The ZSH330 is a three terminal under voltage monitor circuit for use in microprocessor systems. The threshold voltage of the device has been set to 3.1 volts making it ideal for ...

Page 2

ZSH330 ABSOLUTE MAXIMUM RATING Input Supply Voltage -1 to 10V Offstate Output Voltage 10V Onstate Output Source Current( ) Internally limited Note 1 Clamp Diode Forward Current( ) 100mA Note 1 Operating Junction Temperature 150°C Operating Temperature -40 to 85°C ...

Page 3

TYPICAL CHARACTERISTICS 500 400 300 200 100 85°C 25°C -40° Input Voltage (V) Input Current v Input Voltage 30 20 85°C 10 25°C -40°C 0 0.8 -40°C 0.6 25°C 85°C 0.4 0.2 0.0 ...

Page 4

ZSH330 TIMING DIAGRAM APPLICATION CIRCUIT Note 4: A time delayed reset can be accomplished with the additional Cd. 1 é æ ö æ = RCd − ê ç V ÷ ç TH ê ç ÷ ç ...

Page 5

... CONNECTION DIAGRAMS SOT223 Package Suffix – G Top View – Connect pin 4 to pin 2 or leave pin 4 electrically isolated ORDERING INFORMATION Part No Package Partmark ZSH330C TO92 ZSH330 ZSH330G SOT223 ZSH330 ZSH330 TO92 Package Suffix – C Bottom View 4-333 ...

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