©
Semiconductor Components Industries, LLC, 2012
April, 2012
−
Rev. 31
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, AE
2
used by ON Semiconductor,
makes it possible to offer any custom reset threshold value. Seven
industry standard threshold levels are offered to s5.0 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
m
A 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
XXXZM
G
G
XXX
= Specific Device Code
Z
= Assembly Lot Code
M
= Month Code
G
= Pb
−
Free Package
XXXZM
G
G
MARKING DIAGRAMS
(*Note: Microdot may be in either location)
SOT
−
23
SC
−
70
Harman Kardon
AVR 151 Service Manual
Page 63 of 131
Summary of Contents for AVR 1510
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