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ZM33164_06

Description
1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3
Categoryaccessories   
File Size137KB,5 Pages
ManufacturerZetex Semiconductors
Websitehttp://www.zetex.com/
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ZM33164_06 Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3

SUPPLY VOLTAGE
MONITOR
ISSUE
4
– JULY 2006
DEVICE DESCRIPTION
The ZM33164 is a three terminal under
voltage monitor circuit for use in
microprocessor systems. The threshold
voltage of the device has been set to 4.3volts
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
ZM33164 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.
ZM33164
FEATURES
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
4.3 volt threshold for 5 volt logic
60mV hysteresis prevents erratic operation
APPLICATIONS
Microprocessor systems
Computers
Computer peripherals
Instrumentation
Automotive
Battery powered equipment
SCHEMATIC DIAGRAM
4-94
Issue
4
-
July 2006
© Zetex Semiconductors plc 2006

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Description 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
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