ZSM380CSTZ Diodes Zetex, ZSM380CSTZ Datasheet

IC MONITOR SUPPLY 3.8V TO92-3

ZSM380CSTZ

Manufacturer Part Number
ZSM380CSTZ
Description
IC MONITOR SUPPLY 3.8V TO92-3
Manufacturer
Diodes Zetex
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of ZSM380CSTZ

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
3 µs Typical Propagation Delay
Voltage - Threshold
3.8V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
TO-92-3 (Standard Body), TO-226
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
SUPPLY VOLTAGE
MONITOR
ISSUE 2 – JANUARY 2003
DEVICE DESCRIPTION
The ZSM380 is a three terminal under
v o l t a g e m o n i t or c ir c ui t fo r u s e i n
microprocessor systems. The threshold
voltage of the device has been set to 3.8 volts
making it ideal for 5 volt circuits.
Included in the device is a precise voltage
reference and a comparator with built in
hysteresis to prevent erratic operation. The
ZSM380 features an open collector output
capable of sinking 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
low 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 low.
The device is available in a TO92 package for
through hole applications as well as SOT223
for surface mount requirements.
SCHEMATIC DIAGRAM
4-349
FEATURES
APPLICATIONS
SOT223 and TO92 packages
Power on reset generator
Automatic reset generation
Low standby current
Guaranteed operation from 1 volt
Wide supply voltage range
delay capacitor
3.8 volt threshold for 5 volt logic
20mV hysteresis prevents erratic operation
Microprocessor systems
Computers
Computer peripherals
Instrumentation
Automotive
Battery powered equipment
Internal clamp diode to discharge
ZSM380

Related parts for ZSM380CSTZ

ZSM380CSTZ Summary of contents

Page 1

SUPPLY VOLTAGE MONITOR ISSUE 2 – JANUARY 2003 DEVICE DESCRIPTION The ZSM380 is a three terminal under ...

Page 2

ZSM380 ABSOLUTE MAXIMUM RATING Input Supply Voltage -1 to 10V Offstate Output Voltage 10V Onstate Output Sink 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 85°C 25°C -40°C 300 200 100 Input Voltage (V) Input Current vs. Input Voltage 50 V =3. -40°C 25°C 20 85° 0.4 0.8 ...

Page 4

ZSM380 TIMING DIAGRAM Vcc Threshold Voltage 1 V Output Output Undefined APPLICATION CIRCUIT Note 4: A time delayed reset can be accomplished with the additional Cd RCd ln æ ö ç V ÷ mpu ...

Page 5

CONNECTION DIAGRAMS SOT223 Package Suffix – G Top View – Pin 4 floating or connected to pin 2 ORDERING INFORMATION Part Number Package ZSM380G SOT223 ZSM380C TO92 TO92 Package Suffix – C Bottom View Part Mark ZSM380 ZSM380 4-353 ZSM380 ...

Page 6

PRODUCT AND INFORMATION DISCLAIMER This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purposes or form part of any order or contract or ...

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