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 VCC 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.
•
•
•
•
•
•
SC−70
SD SUFFIX
CASE 419AB
PIN CONFIGURATION
3−Lead SOT23
3−Lead SC70
GND
• Precision Monitoring of
•
SOT−23
TB SUFFIX
CASE 527AG
1
Features
•
http://onsemi.com
+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 VCC = 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
3
VCC
2
RESET
(RESET)
(Top View)
CAT803
CAT809
(CAT810)
MARKING DIAGRAMS
XXXMG
G
XXXMG
G
SOT−23
SC−70
XXX
M
G
= Specific Device Code
= Month Code
= Pb−Free Package
(*Note: Microdot may be in either location)
Applications
•
•
•
•
•
•
Computers, Servers, Laptops, Cable Modems
Wireless Communications
Embedded Control Systems
White Goods, Power Meters
Intelligent Instruments
PDAs and Handheld Equipment
© Semiconductor Components Industries, LLC, 2012
October, 2012 − Rev. 33
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
1
Publication Order Number:
CAT803/D
CAT803, CAT809, CAT810
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
CAT803
CAT809
CAT810
Name
1
1
1
GND
2
2
−
RESET
Active LOW reset. RESET is asserted if VCC falls below the reset threshold and
remains low for at least 140 ms after VCC rises above the reset threshold.
−
−
2
RESET
Active HIGH reset. RESET is asserted if VCC falls below the reset threshold and
remains high for at least 140 ms after VCC rises above the reset threshold.
3
3
3
VCC
Description
Ground
Power supply voltage that is monitored.
Table 3. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
−0.3 to +6.0
V
Input Current, VCC
20
mA
Output Current, RESET, RESET
20
mA
Rate of Rise, VCC
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
Any pin with respect to ground
mW
Operating Temperature Range
−40 to +85
°C
Storage Temperature Range
−65 to +105
°C
300
°C
Lead Soldering Temperature (10 sec)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
http://onsemi.com
2
CAT803, CAT809, CAT810
VCC
VCC
VCC
TOLERANCE
BIAS
+
RESET
DIGITAL
DELAY
–
VOLTAGE
REFERENCE
CAT803
GND
VCC
VCC
VCC
TOLERANCE
BIAS
+
DIGITAL
DELAY
–
VOLTAGE
REFERENCE
RESET
CAT809
GND
VCC
VCC
VCC
TOLERANCE
BIAS
+
DIGITAL
DELAY
–
VOLTAGE
REFERENCE
RESET
CAT810
GND
Figure 1. Block Diagrams
http://onsemi.com
3
CAT803, CAT809, CAT810
Table 4. ELECTRICAL CHARACTERISTICS
(VCC = Full range, TA = −40°C to +85°C, unless otherwise specified. Typical values at TA = +25°C and VCC = 5 V for the L/H/M/J
versions, VCC = 3.3 V for the T/S versions, VCC = 3 V for the R version and VCC = 2.5 V for the Z/V versions.)
Symbol
Parameter
VCC Range
ICC
VTH
Supply Current
Reset Threshold Voltage
Conditions
Min
V
5.5
TA = −40°C to +85°C
1.2
5.5
TA = −40°C
to +85°C
VCC < 5.5 V, J/L/M/H
8
20
VCC < 3.6 V, R/S/T/Z/V
6
15
L Threshold
TA = +25°C
4.56
4.63
4.70
TA = −40°C to +85°C
4.50
TA = +25°C
4.48
TA = −40°C to +85°C
4.43
TA = +25°C
4.31
TA = −40°C to +85°C
4.25
TA = +25°C
3.93
TA = −40°C to +85°C
3.89
TA = +25°C
3.04
TA = −40°C to +85°C
3.00
TA = +25°C
2.89
TA = −40°C to +85°C
2.85
TA = +25°C
2.59
TA = −40°C to +85°C
2.55
TA = +25°C
2.28
TA = −40°C to +85°C
2.25
TA = +25°C
1.58
TA = −40°C to +85°C
1.56
J Threshold
T Threshold
S Threshold
R Threshold
Z Threshold
V Threshold
Reset Threshold Tempco
VCC to Reset Delay (Note 2)
VCC = VTH to (VTH − 100 mV)
TR
Reset Active Timeout Period
TA = −40°C to +85°C
4.55
VOL
RESET Output Voltage Low
(Open−drain active LOW,
CAT803 and push−pull,
active LOW, CAT809)
V
4.62
4.67
4.38
4.45
4.50
4.00
4.06
4.10
3.08
3.11
3.15
2.93
2.96
3.00
2.63
2.66
2.70
2.32
2.35
2.38
1.60
1.62
1.64
ppm/°C
20
140
mA
4.75
30
TD
VOH
Units
1.0
M Threshold
VOL
Max
TA = 0°C to +70°C
H Threshold
VOH
Typ
(Note 1)
240
ms
460
ms
VCC = VTH min, ISINK = 1.2 mA
CAT803R/S/T/Z, CAT809R/S/T/Z/V
0.3
V
VCC = VTH min, ISINK = 3.2 mA
CAT803J/L/M, CAT809J/L/M/H
0.4
VCC > 1.0 V, ISINK = 50 mA
0.3
RESET Output Voltage High
(Push−pull, active LOW,
CAT809)
VCC = VTH max, ISOURCE = 500 mA
CAT809R/S/T/Z/V
0.8 VCC
VCC = VTH max, ISOURCE = 800 mA
CAT809J/L/M/H
VCC − 1.5
RESET Output Voltage Low
(Push−pull, active HIGH,
CAT810)
VCC > VTH max, ISINK = 1.2 mA
CAT810R/S/T/Z
0.3
VCC > VTH max, ISINK = 3.2 mA
CAT810J/L/M
0.4
RESET Output Voltage High
(Push−pull, active HIGH,
CAT810)
1.8 V < VCC VTH min,
ISOURCE = 150 mA
1. Production testing done at TA = +25°C; limits over temperature guaranteed by design only.
2. RESET output for the CAT809; RESET output for the CAT810.
http://onsemi.com
4
0.8 VCC
V
V
V
CAT803, CAT809, CAT810
TYPICAL OPERATING CHARACTERISTICS
(VCC = Full range, TA = −40°C to +85°C, unless otherwise specified. Typical values at TA = +25°C and VCC = 5 V for the
L/M/J versions, VCC = 3.3 V for the T/S versions, VCC = 3 V for the R version and VCC = 2.5 V for the Z version.)
12
SUPPLY CURRENT (mA)
VCC = 5 V
240
220
VCC = 2.5 V
200
180
160
−50
0
50
100
10
VCC = 5.5 V
8
4
2
0
50
100
150
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 2. Power−up Reset Timeout vs.
Temperature
Figure 3. Supply Current vs. Temperature
(No Load, CAT8xxR/S/T/Z)
14
1.0002
12
1.0000
10
8
6
4
2
0
−50
VCC = 3.6 V
6
0
−50
150
NORMALIZED THRESHOLD
POWER−DOWN RESET DELAY (mS)
POWER−UP RESET TIMEOUT (mS)
260
0
50
100
0.9998
0.9996
0.9994
0.9992
0.9990
0.9988
150
0
20
40
60
80
100
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 4. Power−down Reset Delay vs.
Temperature (CAT8xxR/S/T/Z)
Figure 5. Normalized Reset Threshold vs.
Temperature
http://onsemi.com
5
120
CAT803, CAT809, CAT810
Detailed Descriptions
Reset Timing
The reset signal is asserted LOW for the CAT803/CAT809 and HIGH for the CAT810 when the power supply voltage falls below
the threshold trip voltage and remains asserted for at least 140 ms after the power supply voltage has risen above the threshold.
5V
VTH
VCC
0V
TR
TD
5V
CAT803, CAT809
Reset Timeout Period
(140 ms
minimum)
RESET
0V
5V
CAT810
RESET
0V
Figure 6. Reset Timing Diagram
30
VCC Transient Response
TAMB = 25°C
TRANSIENT DURATION (ms)
The CAT803/CAT809/CAT810 protect mPs against
brownout failure. Short duration transients of 4 msec or less
and 100 mV amplitude typically do not cause a false RESET.
Figure 7 shows the maximum pulse duration of negative−
going VCC transients that do not cause a reset condition.
As the amplitude of the transient goes further below the
threshold (increasing VTH − VCC), the maximum pulse
duration decreases. In this test, the VCC starts from an initial
voltage of 0.5 V above the threshold and drops below it by
the amplitude of the overdrive voltage (VTH − VCC).
25
20
15
CAT809Z
10
CAT809M
5
0
1
10
100
1000
RESET OVERDRIVE VTH − VCC (mV)
Figure 7. Maximum Transient Duration without
Causing a Reset Pulse vs. Reset Comparator
Overdrive
http://onsemi.com
6
CAT803, CAT809, CAT810
Valid RESET with VCC Under 1.0 V
To ensure that the CAT809 RESET pin is in a known state when VCC is under 1.0 V, a >10 kW pull−down resistor between
RESET pin and GND is recommended. For the CAT810, a pull−up resistor from RESET pin to VCC is needed.
Power
Supply
Power
Supply
VCC
VCC
10 kW
CAT810
CAT809
RESET
RESET
10 kW
GND
GND
Figure 8. RESET Valid with VCC Under 1.0 V
Figure 9. RESET Valid with VCC Under 1.1 V
Bi−directional Reset Pin Interfacing
The CAT809/810 can interface with mP/mC bi−directional reset pins by connecting a 4.7 kW resistor in series with the
CAT809/810 reset output and the mP/mC bi−directional reset pin.
BUF
Power
Supply
Buffered
RESET
VCC
VCC
CAT809
mP
4.7 kW
(For example:
68HC11)
RESET
INPUT
RESET
GND
GND
Bi−directional
I/O Pin
Figure 10. Bi−directional Reset Pin Interfacing
CAT803 Open−Drain RESET Application
Power
Supply
The CAT803 features an open−drain RESET output and
therefore needs a pull−up resistor on the output for proper
operation, as shown on Figure 11. An advantage of the
open−drain output includes the ability to “wire AND”
several outputs together to form an inexpensive logic circuit.
It is also possible to have the pull−up resistor connected to
a different supply which can be higher than the CAT803 VCC
pin. The value of the pull−up resistor is not critical in most
applications, typical values being between 5 kW and 10 kW.
VCC
5 kW
CAT803
VCC
mP
RESET
GND
RESET
INPUT
GND
Figure 11. Typical CAT803 Open−Drain
Circuit Configuration
http://onsemi.com
7
CAT803, CAT809, CAT810
Table 5. ORDERING PART NUMBER
Top Mark
(Note 4)
Order Number
NiPdAu (Note 3)
Matte−Tin
Voltage
NiPdAu
Matte−Tin
CAT803LSDI−GT3
CAT803LSDI−T3
4.63 V
VKA
VKL
CAT803MSDI−GT3
CAT803MSDI−T3
4.38 V
VKA
VKL
CAT803JSDI−GT3
CAT803JSDI−T3
4.00 V
VKA
VKL
CAT803TSDI−GT3
CAT803TSDI−T3
3.08 V
VKA
VKL
CAT803SSDI−GT3
CAT803SSDI−T3
2.93 V
VKA
VKL
CAT803RSDI−GT3
CAT803RSDI−T3
2.63 V
VKA
VKL
CAT803ZSDI−GT3
CAT803ZSDI−T3
2.32 V
VKA
VKL
CAT803LTBI−GT3
CAT803LTBI−T3
4.63 V
VKA
VKL
CAT803MTBI−GT3
CAT803MTBI−T3
4.38 V
VKA
VKL
CAT803JTBI−GT3
CAT803JTBI−T3
4.00 V
VKA
VKL
CAT803TTBI−GT3
CAT803TTBI−T3
3.08 V
VKA
VKL
CAT803STBI−GT3
CAT803STBI−T3
2.93 V
VKA
VKL
CAT803RTBI−GT3
CAT803RTBI−T3
2.63 V
VKA
VKL
CAT803ZTBI−GT3
CAT803ZTBI−T3
2.32 V
VKA
VKL
CAT809LSDI−GT3
CAT809LSDI−T3
4.63 V
VLA
VLD
CAT809MSDI−GT3
CAT809MSDI−T3
4.38 V
VLA
VLD
CAT809JSDI−GT3
CAT809JSDI−T3
4.00 V
VLA
VLD
CAT809TSDI−GT3
CAT809TSDI−T3
3.08 V
VLA
VLD
CAT809SSDI−GT3
CAT809SSDI−T3
2.93 V
VLA
VLD
CAT809RSDI−GT3
CAT809RSDI−T3
2.63 V
VLA
VLD
CAT809ZSDI−GT3
CAT809ZSDI−T3
2.32 V
VLA
VLD
CAT809LTBI−GT3
CAT809LTBI−T3
4.63 V
VLA
VLD
CAT809HTBI−GT3
CAT809HTBI−T3
4.55 V
VLA
VLD
CAT809MTBI−GT3
CAT809MTBI−T3
4.38 V
VLA
VLD
CAT809JTBI−GT3
CAT809JTBI−T3
4.00 V
VLA
VLD
CAT809TTBI−GT3
CAT809TTBI−T3
3.08 V
VLA
VLD
CAT809STBI−GT3
CAT809STBI−T3
2.93 V
VLA
VLD
CAT809RTBI−GT3
CAT809RTBI−T3
2.63 V
VLA
VLD
CAT809ZTBI−GT3
CAT809ZTBI−T3
2.32 V
VLA
VLD
CAT809VTBI−GT3
CAT809VTBI−T3
1.60 V
VLA
VLD
Output
Reset
Package
Open
Drain
LOW
SC70−3
Quantity
per Reel
(Note 5)
3,000
Open
Drain
LOW
SOT−23−3
CMOS /
Push−Pull
LOW
SC70−3
3,000
CMOS /
Push−Pull
LOW
SOT−23−3
3. Not recommended for new designs.
4. Threshold and full part numbers will be provided on box and reel labels as well as all Shipping documents.
5. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
6. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device
Nomenclature document, TND310/D, available at www.onsemi.com
http://onsemi.com
8
CAT803, CAT809, CAT810
Table 5. ORDERING PART NUMBER
Top Mark
(Note 4)
Order Number
NiPdAu (Note 3)
Matte−Tin
Voltage
NiPdAu
Matte−Tin
CAT810LSDI−GT3
CAT810LSDI−T3
4.63 V
VHA
VHT
CAT810MSDI−GT3
CAT810MSDI−T3
4.38 V
VHA
VHT
CAT810JSDI−GT3
CAT810JSDI−T3
4.00 V
VHA
VHT
CAT810TSDI−GT3
CAT810TSDI−T3
3.08 V
VHA
VHT
CAT810SSDI−GT3
CAT810SSDI−T3
2.93 V
VHA
VHT
CAT810RSDI−GT3
CAT810RSDI−T3
2.63 V
VHA
VHT
CAT810ZSDI−GT3
CAT810ZSDI−T3
2.32 V
VHA
VHT
CAT810LTBI−GT3
CAT810LTBI−T3
4.63 V
VHA
VHT
CAT810MTBI−GT3
CAT810MTBI−T3
4.38 V
VHA
VHT
CAT810JTBI−GT3
CAT810JTBI−T3
4.00 V
VHA
VHT
CAT810TTBI−GT3
CAT810TTBI−T3
3.08 V
VHA
VHT
CAT810STBI−GT3
CAT810STBI−T3
2.93 V
VHA
VHT
CAT810RTBI−GT3
CAT810RTBI−T3
2.63 V
VHA
VHT
CAT810ZTBI−GT3
CAT810ZTBI−T3
2.32 V
VHA
VHT
Output
Reset
Package
CMOS /
Push−Pull
HIGH
SC70−3
Quantity
per Reel
(Note 5)
3,000
CMOS /
Push−Pull
HIGH
SOT−23−3
3. Not recommended for new designs.
4. Threshold and full part numbers will be provided on box and reel labels as well as all Shipping documents.
5. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
6. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device
Nomenclature document, TND310/D, available at www.onsemi.com
http://onsemi.com
9
CAT803, CAT809, CAT810
PACKAGE DIMENSIONS
SOT−23, 3 Lead
CASE 527AG−01
ISSUE O
SYMBOL
D
3
E1
1
E
2
e
e1
MIN
A
0.89
1.12
0.013
0.10
b
0.37
0.50
c
0.085
0.18
D
2.80
3.04
E
2.10
2.64
E1
1.20
1.40
e
0.95 BSC
e1
1.90 BSC
L
0.40 REF
0.54 REF
0º
θ
A
MAX
A1
L1
TOP VIEW
NOM
8º
q
b
L1
A1
SIDE VIEW
L
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC TO-236.
http://onsemi.com
10
c
CAT803, CAT809, CAT810
PACKAGE DIMENSIONS
SC−70, 3 Lead, 1.25x2
CASE 419AB−01
ISSUE O
MIN
SYMBOL
D
E1 E
A
0.80
1.10
0.00
0.10
A2
0.80
b
0.15
0.30
c
0.08
0.22
D
1.80
2.00
2.20
E
1.80
2.10
2.40
E1
1.15
1.25
1.35
TOP VIEW
0.90
1.00
0.65 BSC
L
e
MAX
A1
e
e
NOM
0.26
0.36
L1
0.42 REF
L2
0.15 BSC
0.46
θ
0º
8º
θ1
4º
10º
q1
A2 A
q
q1
b
L
L1
A1
SIDE VIEW
c
L2
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-203.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
http://onsemi.com
11
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
CAT803/D
工商网监
湘ICP备2023018690号
