zsm330 Diodes, Inc., zsm330 Datasheet
zsm330
Manufacturer Part Number
zsm330
Description
Supply Voltage Monitor
Manufacturer
Diodes, Inc.
Datasheet
1.ZSM330.pdf
(5 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ZSM330
Manufacturer:
ZETEX
Quantity:
20 000
Part Number:
zsm330N8
Manufacturer:
ZETEX
Quantity:
20 000
Issue 3 - July 2006
© Zetex Semiconductors plc 2006
SUPPLY VOLTAGE
MONITOR
ISSUE 3 – JULY 2006
DEVICE DESCRIPTION
The ZSM330 is a three terminal under
v o l t a g e m o n i t o r c i r c u i t f o r u s e i n
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
ZSM330 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
4-344
FEATURES
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APPLICATIONS
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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
3.1 volt threshold for 3.3 volt logic
20mV hysteresis prevents erratic operation
Microprocessor systems
Computers
Computer peripherals
Instrumentation
Automotive
Battery powered equipment
Internal clamp diode to discharge
ZSM330
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