CAT803TTBI-GT3

© Semiconductor Components Industries, LLC, 2014
August, 2014 − Rev. 34
1 Publication Order Number:
CAT803/D
CAT803, CAT809, CAT810
3-Pin Microprocessor
Power Supply Supervisors
Description
The CAT803, CAT809, and CAT810 are supervisory circuits that
monitor power supplies in digital systems. The CAT803, CAT809, and
CAT810 are direct replacements for the MAX803, MAX809 and
MAX810 in applications operating over the industrial temperature range.
These devices generate a reset signal, which is asserted while the
power supply voltage is below a preset threshold level and for at least
140 ms after the power supply level has risen above that level. The
underlying floating gate technology, Analog EEPROM used by
ON Semiconductor, makes it possible to offer any custom reset
threshold value. Seven industry standard threshold levels are offered
to support +5.0 V, +3.3 V, +3.0 V and +2.5 V systems.
The CAT803 has an open−drain RESET
output (active LOW). The
CAT803 requires a pull−up resistor on the reset output.
The CAT809 features a push−pull RESET
output (active LOW) and
the CAT810 features a push−pull RESET output (active HIGH).
Fast transients on the power supply are ignored and the output is
guaranteed to be in the correct state at V
CC
levels as low as 1.0 V.
The CAT803, CAT809, and CAT810 are available in both the
compact 3−pin SOT−23 and SC−70 packages.
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
Offered in Three Output Configurations:
CAT803: Open−Drain Active LOW Reset
CAT809: Push−Pull Active LOW Reset
CAT810: Push−Pull Active HIGH Reset
Direct Replacements for the MAX803, MAX809 and MAX810 in
Applications Operating over the Industrial Temperature Range
Reset Valid down to V
CC
= 1.0 V
6 mA Power Supply Current
Power Supply Transient Immunity
Industrial Temperature Range: −40°C to +85°C
Available in SOT−23 and SC−70 Packages
These Devices are Pb−Free and are RoHS Compliant
Applications
Computers, Servers, Laptops, Cable Modems
Wireless Communications
Embedded Control Systems
White Goods, Power Meters
Intelligent Instruments
PDAs and Handheld Equipment
http://onsemi.com
PIN CONFIGURATION
V
CC
RESET
(RESET)
GND
1
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
ORDERING INFORMATION
(Top View)
SOT−23
TB SUFFIX
CASE 527AG
SC−70
SD SUFFIX
CASE 419AB
2
3
CAT803
CAT809
(CAT810)
3−Lead SOT23
3−Lead SC70
XXXMG
G
XXX = Specific Device Code
M = Month Code
G = Pb−Free Package
XXXMG
G
MARKING DIAGRAMS
(*Note: Microdot may be in either location)
SOT−23 SC−70
CAT803, CAT809, CAT810
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2
Table 1. THRESHOLD SUFFIX SELECTOR
Nominal Threshold Voltage Threshold Suffix Designation
4.63 V L
4.55 V H
4.38 V M
4.00 V J
3.08 V T
2.93 V S
2.63 V R
2.32 V Z
1.60 V V
Table 2. PIN DESCRIPTIONS
Pin Number
Name Description
CAT803 CAT809 CAT810
1 1 1 GND Ground
2 2 RESET Active LOW reset. RESET is asserted if V
CC
falls below the reset threshold and
remains low for at least 140 ms after V
CC
rises above the reset threshold.
2 RESET Active HIGH reset. RESET is asserted if V
CC
falls below the reset threshold and
remains high for at least 140 ms after V
CC
rises above the reset threshold.
3 3 3 V
CC
Power supply voltage that is monitored.
Table 3. ABSOLUTE MAXIMUM RATINGS
Parameter Rating Units
Any pin with respect to ground −0.3 to +6.0 V
Input Current, V
CC
20 mA
Output Current, RESET, RESET 20 mA
Rate of Rise, V
CC
100
V/ms
Continuous Power Dissipation
Derate 2.2 mW/°C above 70°C (SC70)
Derate 4 mW/°C above 70°C (SOT23)
175
320
mW
Operating Temperature Range −40 to +85 °C
Storage Temperature Range −65 to +105 °C
Lead Soldering Temperature (10 sec) 300 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
CAT803, CAT809, CAT810
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3
CAT803
GND
+
DIGITAL
DELAY
TOLERANCE
BIAS
VOLTAGE
REFERENCE
CAT810
+
DIGITAL
DELAY
TOLERANCE
BIAS
VOLTAGE
REFERENCE
GND
CAT809
+
DIGITAL
DELAY
TOLERANCE
BIAS
VOLTAGE
REFERENCE
GND
Figure 1. Block Diagrams
V
CC
V
CC
V
CC
RESET
RESET
RESET
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC

CAT803TTBI-GT3

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Supervisory Circuits 3.08V, Open Drain Active Low
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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