CAT809STBI-GT3 - ON Semiconductor

April, 2012 − Rev. 31

1Publication 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, AE2 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.

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 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

Applications

•Computers, Servers, Laptops, Cable Modems

•Wireless Communications

•Embedded Control Systems

•White Goods, Power Meters

•Intelligent Instruments

•PDAs and Handheld Equipment

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PIN CONFIGURATION

VCC

RESET

(RESET)

GND

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

CAT803

CAT809

(CAT810)

3−Lead SOT23

3−Lead SC70

XXXZMG

XXX = Specific Device Code

Z = Assembly Lot Code

M = Month Code

G= Pb−Free Package

XXXZMG

MARKING DIAGRAMS

(*Note: Microdot may be in either location)

SOT−23 SC−70

CAT803, CAT809, CAT810

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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

22−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 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, 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

Operating Temperature Range −40 to +85 °C

Storage Temperature Range −65 to +105 °C

Lead Soldering Temperature (10 sec) 300 °C

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.

CAT803, CAT809, CAT810

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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

VCC

RESET

VCC

CAT803, CAT809, CAT810

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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 Conditions Min

Typ

(Note 1) Max Units

VCC Range TA = 0°C to +70°C 1.0 5.5 V

TA = −40°C to +85°C 1.2 5.5

ICC Supply Current TA = −40°C

to +85°C

VCC < 5.5 V, J/L/M/H 8 20 mA

VCC < 3.6 V, R/S/T/Z/V 6 15

VTH Reset Threshold Voltage L Threshold TA = +25°C 4.56 4.63 4.70 V

TA = −40°C to +85°C 4.50 4.75

H Threshold TA = +25°C 4.48 4.55 4.62

TA = −40°C to +85°C 4.43 4.67

M Threshold TA = +25°C 4.31 4.38 4.45

TA = −40°C to +85°C 4.25 4.50

J Threshold TA = +25°C 3.93 4.00 4.06

TA = −40°C to +85°C 3.89 4.10

T Threshold TA = +25°C 3.04 3.08 3.11

TA = −40°C to +85°C 3.00 3.15

S Threshold TA = +25°C 2.89 2.93 2.96

TA = −40°C to +85°C 2.85 3.00

R Threshold TA = +25°C 2.59 2.63 2.66

TA = −40°C to +85°C 2.55 2.70

Z Threshold TA = +25°C 2.28 2.32 2.35

TA = −40°C to +85°C 2.25 2.38

V Threshold TA = +25°C 1.58 1.60 1.62

TA = −40°C to +85°C 1.56 1.64

Reset Threshold Tempco 30 ppm/°C

TDVCC to Reset Delay (Note 2) VCC = VTH to (VTH − 100 mV) 20 ms

TRReset Active Timeout Period TA = −40°C to +85°C 140 240 460 ms

VOL RESET Output Voltage Low

(Open−drain active LOW,

CAT803 and push−pull,

active LOW, CAT809)

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 mA0.3

VOH RESET Output Voltage High

(Push−pull, active LOW,

CAT809)

VCC = VTH max, ISOURCE = 500 mA

CAT809R/S/T/Z/V

0.8 VCC V

VCC = VTH max, ISOURCE = 800 mA

CAT809J/L/M/H

VCC − 1.5

VOL RESET Output Voltage Low

(Push−pull, active HIGH,

CAT810)

VCC > VTH max, ISINK = 1.2 mA

CAT810R/S/T/Z

0.3 V

VCC > VTH max, ISINK = 3.2 mA

CAT810J/L/M

0.4

VOH RESET Output Voltage High

(Push−pull, active HIGH,

CAT810)

1.8 V < VCC VTH min,

ISOURCE = 150 mA

0.8 VCC V

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.

CAT803, CAT809, CAT810

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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.)

Figure 2. Power−up Reset Timeout vs.

Temperature

Figure 3. Supply Current vs. Temperature

(No Load, CAT8xxR/S/T/Z)

TEMPERATURE (°C) TEMPERATURE (°C)

150100500−50

160

180

200

220

240

260

100500−50

Figure 4. Power−down Reset Delay vs.

Temperature (CAT8xxR/S/T/Z)

Figure 5. Normalized Reset Threshold vs.

Temperature

TEMPERATURE (°C) TEMPERATURE (°C)

150100500−50

120100806040200

0.9988

0.9990

0.9992

0.9998

1.0000

1.0002

POWER−UP RESET TIMEOUT (mS)

SUPPLY CURRENT (mA)

POWER−DOWN RESET DELAY (mS)

NORMALIZED THRESHOLD

150

0.9994

0.9996

VCC = 3.6 V

VCC = 5.5 V

VCC = 2.5 V

VCC = 5 V

CAT803, CAT809, CAT810

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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.

0 V

CAT803, CAT809

5 V

0 V

5 V

RESET

(140 ms

minimum)

Reset Timeout Period

CAT810

0 V

5 V

Figure 6. Reset Timing Diagram

VTH

VCC

RESET/OUT

VCC Transient Response

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 − V

CC), 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).

Figure 7. Maximum Transient Duration without

Causing a Reset Pulse vs. Reset Comparator

Overdrive

RESET OVERDRIVE VTH − VCC (mV)

1000100101

TRANSIENT DURATION (ms)

CAT809M

CAT809Z

TAMB = 25°C

CAT803, CAT809, CAT810

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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.

Figure 8. RESET Valid with VCC Under 1.0 V Figure 9. RESET Valid with VCC Under 1.1 V

CAT809

GND

Power

10 kW

Supply

CAT810

GND

Power

Supply

RESET

VCC

RESET

10 kW

VCC

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.

Figure 10. Bi−directional Reset Pin Interfacing

CAT809

GND

Power

Supply

BUF Buffered

RESET

GND

Bi−directional

I/O Pin

(For example:

68HC11)

VCC

4.7 kW

RESET RESET

INPUT

CAT803 Open−Drain RESET Application

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.

Figure 11. Typical CAT803 Open−Drain

Circuit Configuration

CAT803

GND

Power

Supply

GND

VCC

5 kW

RESET RESET

INPUT

CAT803, CAT809, CAT810

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Table 5. ORDERING PART NUMBER

Order Number

Voltage

Top Mark

(Note 4)

Output Reset Package

Quantity

per Reel

(Note 5)

NiPdAu (Note 3) Matte−Tin NiPdAu Matte−Tin

CAT803LSDI−GT3 CAT803LSDI−T3 4.63 V VKA VKL

Open

Drain LOW SC70−3

3,000

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

Open

Drain LOW SOT−23−3

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

CMOS /

Push−Pull LOW SC70−3

3,000

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

CMOS /

Push−Pull LOW SOT−23−3

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

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

CAT803, CAT809, CAT810

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Table 5. ORDERING PART NUMBER

Order Number Quantity

per Reel

(Note 5)

PackageResetOutput

Top Mark

(Note 4)

Voltage

NiPdAu (Note 3)

Quantity

per Reel

(Note 5)

PackageResetOutput

Matte−TinNiPdAu

Voltage

Matte−Tin

CAT810LSDI−GT3 CAT810LSDI−T3 4.63 V VHA VHT

CMOS /

Push−Pull HIGH SC70−3

3,000

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

CMOS /

Push−Pull HIGH SOT−23−3

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

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

CAT803, CAT809, CAT810

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PACKAGE DIMENSIONS

SOT−23, 3 Lead

CASE 527AG−01

ISSUE O

E1 E

TOP VIEW

SIDE VIEW END VIEW

L1 L

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC TO-236.

SYMBOL MIN NOM MAX

0º 8º

0.013

0.37

0.085

2.80

2.10

1.20

1.90 BSC

0.40 REF

1.12

0.10

0.50

0.18

3.04

2.64

1.40

0.54 REF

0.95 BSC

0.89

CAT803, CAT809, CAT810

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PACKAGE DIMENSIONS

SC−70, 3 Lead, 1.25x2

CASE 419AB−01

ISSUE O

L1 L2

bA1

TOP VIEW

SIDE VIEW END VIEW

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC MO-203.

SYMBOL MIN NOM MAX

0º 8º

0.00

0.15

0.08

0.26

1.80

1.15

0.65 BSC

0.15 BSC

1.10

0.10

0.30

0.22

0.46

2.20

2.40

1.35

0.80

θ1 4º 10º

A2 0.80 1.00

0.42 REF

0.36

2.00

2.10

1.25

0.90

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.

CAT803/D

PUBLICATION ORDERING INFORMATION

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

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Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada

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Email: orderlit@onsemi.com

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For additional information, please contact your local

Sales Representative