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CAT811MTBI-T

Description
Monitoring circuit 4.38v push-pull low
CategoryPower/power management    The power supply circuit   
File Size150KB,11 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Environmental Compliance
Download Datasheet Parametric View All

CAT811MTBI-T Overview

Monitoring circuit 4.38v push-pull low

CAT811MTBI-T Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Parts packaging codeSOT-143
package instructionTSOP, TO-253
Contacts4
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresRESET THRESHOLD VOLTAGE IS 4.38V; MANUAL RESET INPUT
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G4
JESD-609 codee3
length2.9 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals4
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSOP
Encapsulate equivalent codeTO-253
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE
Peak Reflow Temperature (Celsius)260
power supply5 V
Certification statusNot Qualified
Maximum seat height1.12 mm
Maximum supply current (Isup)0.02 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1.2 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch1.92 mm
Terminal locationDUAL
Threshold voltage nominal+4.38V
Maximum time at peak reflow temperature40
width1.3 mm
Base Number Matches1
CAT811, CAT812
4-Pin Microprocessor Power Supply Supervisors
with Manual Reset
FEATURES
Precision monitoring of
+5.0 V (± 5%, ± 10%, ± 20%),
+3.3 V (± 5%, ± 10%),
+3.0 V (± 10%) and
+2.5 V (± 5%) power supplies
Manual reset input
Offered in two output configurations:
CAT811: Active LOW reset
CAT812: Active HIGH reset
Direct replacements for the MAX811 and
MAX812 in applications operating over the
industrial temperature range
Reset valid down to V
CC
= 1.0V
6µA power supply current
Power supply transient immunity
Available in SOT-143 packages with Sn or
NiPdAu Green Lead finishes.
Industrial temperature range: -40ºC to +85ºC
DESCRIPTION
The CAT811 and CAT812 are microprocessor supervi-
sory circuits that monitor power supplies. The CAT811
and CAT812 are direct replacements for the MAX811
and MAX812 in applications operating over the industrial
temperature range; both have a manual reset input.
These devices generate a reset signal, which is
asserted while the power supply voltage is below a
preset threshold level and for at least 140ms after the
power supply level has risen above that level. The
underlying floating gate technology, AE
2(TM)
used by
Catalyst Semiconductor, makes it possible to offer any
custom reset threshold value. Seven industry
standard threshold levels are offered to support
+5.0V, +3.3V, +3.0V and +2.5V systems.
The CAT811 features a RESET push-pull output
(active LOW) and the CAT812 features a RESET
push-pull output (active HIGH).
Fast transients on the power supply are ignored and
the output is guaranteed to be in the correct state at
Vcc levels as low as 1.0 V.
The CAT811/812 are fully specified over the industrial
temperature range (-40°C to 85°C) and are available
in a compact 4-pin SOT-143 package.
For Ordering Information details, see page 10.
APPLICATION
Computers, Servers, Laptops
Cable modems
Wireless communications
Embedded control systems
White goods
Power meters
Intelligent instruments
PDAs and handheld equipment
THRESHOLD SUFFIX SELECTOR
DESCRIPTION
Nominal Threshold
Voltage
4.63V
4.38V
4.00V
3.08V
2.93V
2.63V
2.32V
Threshold Suffix
Designation
L
M
J
T
S
R
Z
PIN CONFIGURATION
GND
1
CAT811
CAT812
¯¯¯¯¯¯
RESET
2
3
¯¯¯
MR
4
V
CC
© 2010 SCILLC. All rights reserved.
Characteristics subject to change without notice
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