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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.

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SOT−23

TB SUFFIX

CASE 527AG

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

SC−70

SD SUFFIX

CASE 419AB

guaranteed to be in the correct state at V levels as low as 1.0 V.

CC

The CAT803, CAT809, and CAT810 are available in both the

compact 3−pin SOT−23 and SC−70 packages.

PIN CONFIGURATION

1

3−Lead SOT23

3−Lead SC70

Features

GND

• Precision Monitoring of

+5.0 V (−5%, −10%, −20%),

+3.3 V (−5%, −10%),

+3.0 V (−10%) and

3

V

CC

2

CAT803

CAT809

(CAT810)

RESET

(RESET)

+2.5 V (−5%) Power Supplies

(Top View)

• Offered in Three Output Configurations:

− CAT803: Open−Drain Active LOW Reset

− CAT809: Push−Pull Active LOW Reset

MARKING DIAGRAMS

− CAT810: Push−Pull Active HIGH Reset

• Direct Replacements for the MAX803, MAX809 and MAX810 in

Applications Operating over the Industrial Temperature Range

XXXMG

G

• Reset Valid down to V = 1.0 V

CC

• 6 mA Power Supply Current

SOT−23

SC−70

• Power Supply Transient Immunity

XXX

M

G

= Specific Device Code

• 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

= 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

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

• PDAs and Handheld Equipment

©

Semiconductor Components Industries, LLC, 2012

1

Publication Order Number:

October, 2012 − Rev. 33

CAT803/D

CAT803, CAT809, CAT810

Table 1. THRESHOLD SUFFIX SELECTOR

Nominal Threshold Voltage

Threshold Suffix Designation

4.63 V

4.55 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

1.60 V

L

H

M

J

T

S

R

Z

V

Table 2. PIN DESCRIPTIONS

Pin Number

CAT803

CAT809

CAT810

Name

Description

1

2

1

2

1

GND

Ground

−

RESET

Active LOW reset. RESET is asserted if V falls below the reset threshold and

remains low for at least 140 ms after V rises above the reset threshold.

CC

−

2

3

RESET

Active HIGH reset. RESET is asserted if V falls below the reset threshold and

CC

remains high for at least 140 ms after V rises above the reset threshold.

CC

3

V

CC

Power supply voltage that is monitored.

Table 3. ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

−0.3 to +6.0

20

Units

V

Any pin with respect to ground

Input Current, V

mA

CC

Output Current, RESET, RESET

Rate of Rise, V

20

mA

100

V/ms

mW

CC

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

Storage Temperature Range

−40 to +85

−65 to +105

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.

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2

CAT803, CAT809, CAT810

V

CC

V

CC

+

–

V

CC

TOLERANCE

RESET

DIGITAL

DELAY

BIAS

VOLTAGE

REFERENCE

CAT803

GND

V

CC

V

CC

+

V

CC

TOLERANCE

DIGITAL

DELAY

BIAS

RESET

–

VOLTAGE

REFERENCE

CAT809

GND

V

CC

V

CC

+

V

CC

TOLERANCE

DIGITAL

DELAY

BIAS

RESET

–

VOLTAGE

REFERENCE

CAT810

GND

Figure 1. Block Diagrams

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3

CAT803, CAT809, CAT810

Table 4. ELECTRICAL CHARACTERISTICS

(V = Full range, T = −40°C to +85°C, unless otherwise specified. Typical values at T = +25°C and V = 5 V for the L/H/M/J

CC

A

CC

versions, V = 3.3 V for the T/S versions, V = 3 V for the R version and V = 2.5 V for the Z/V versions.)

CC

Typ

(Note 1)

Symbol

Parameter

Range

Conditions

T = 0°C to +70°C

Min

1.0

1.2

Max

5.5

Units

V

CC

V

A

T = −40°C to +85°C

A

5.5

I

Supply Current

T = −40°C

V

< 5.5 V, J/L/M/H

8

6

20

mA

CC

A

CC

to +85°C

< 3.6 V, R/S/T/Z/V

15

CC

V

TH

Reset Threshold Voltage

L Threshold

T = +25°C

4.56

4.50

4.48

4.43

4.31

4.25

3.93

3.89

3.04

3.00

2.89

2.85

2.59

2.55

2.28

2.25

1.58

1.56

4.63

4.70

4.75

4.62

4.67

4.45

4.50

4.06

4.10

3.11

3.15

2.96

3.00

2.66

2.70

2.35

2.38

1.62

1.64

V

A

T = −40°C to +85°C

A

H Threshold

M Threshold

J Threshold

T Threshold

S Threshold

R Threshold

Z Threshold

V Threshold

T = +25°C

A

4.55

4.38

4.00

3.08

2.93

2.63

2.32

1.60

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

T = +25°C

A

T = −40°C to +85°C

A

Reset Threshold Tempco

30

20

ppm/°C

ms

T

V

CC

to Reset Delay (Note 2)

V = V to (V − 100 mV)

CC TH TH

D

R

T

Reset Active Timeout Period

T = −40°C to +85°C

140

240

460

0.3

ms

A

V

OL

RESET Output Voltage Low

(Open−drain active LOW,

CAT803 and push−pull,

active LOW, CAT809)

V

= V min, I = 1.2 mA

SINK

V

CC

TH

CAT803R/S/T/Z, CAT809R/S/T/Z/V

V

= V min, I = 3.2 mA

0.4

0.3

CC

TH

SINK

CAT803J/L/M, CAT809J/L/M/H

V

> 1.0 V, I

= 50 mA

CC

SINK

V

OH

RESET Output Voltage High

(Push−pull, active LOW,

CAT809)

0.8 V

V

= V max, I

= 500 mA

CC

TH

SOURCE

CC

CAT809R/S/T/Z/V

V

= V max, I

= 800 mA

V

− 1.5

CC

TH

SOURCE

CC

CAT809J/L/M/H

V

OL

RESET Output Voltage Low

(Push−pull, active HIGH,

CAT810)

V

> V max, I

= 1.2 mA

0.3

0.4

CC

TH

SINK

CAT810R/S/T/Z

V

> V max, I

= 3.2 mA

CC

TH

SINK

CAT810J/L/M

V

OH

RESET Output Voltage High

(Push−pull, active HIGH,

CAT810)

1.8 V < V

SOURCE

V

min,

0.8 V

CC

TH

I

= 150 mA

1. Production testing done at T = +25°C; limits over temperature guaranteed by design only.

A

2. RESET output for the CAT809; RESET output for the CAT810.

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4

CAT803, CAT809, CAT810

TYPICAL OPERATING CHARACTERISTICS

(V = Full range, T = −40°C to +85°C, unless otherwise specified. Typical values at T = +25°C and V = 5 V for the

CC

A

CC

L/M/J versions, V = 3.3 V for the T/S versions, V = 3 V for the R version and V = 2.5 V for the Z version.)

CC

260

240

220

200

12

10

V

CC

= 5 V

V

CC

= 5.5 V

8

6

4

V

CC

= 3.6 V

V

CC

= 2.5 V

180

160

2

0

−50

0

50

TEMPERATURE (°C)

100

150

−50

0

50

TEMPERATURE (°C)

100

150

Figure 2. Power−up Reset Timeout vs.

Figure 3. Supply Current vs. Temperature

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

Temperature

14

12

10

8

1.0002

1.0000

0.9998

0.9996

0.9994

0.9992

6

4

0.9990

0.9988

2

0

−50

0

50

100

150

0

20

40

60

80

100

120

TEMPERATURE (°C)

Figure 4. Power−down Reset Delay vs.

Figure 5. Normalized Reset Threshold vs.

Temperature

Temperature (CAT8xxR/S/T/Z)

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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.

5 V

V

TH

V

CC

0 V

T

Reset Timeout Period

R

D

(140 ms

minimum)

5 V

RESET

0 V

CAT803, CAT809

5 V

RESET

CAT810

0 V

Figure 6. Reset Timing Diagram

30

V_CCTransient Response

T

AMB

= 25°C

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−

25

20

15

10

going V transients that do not cause a reset condition.

CC

As the amplitude of the transient goes further below the

CAT809Z

threshold (increasing V − V ), the maximum pulse

TH

CC

duration decreases. In this test, the V starts from an initial

CC

CAT809M

voltage of 0.5 V above the threshold and drops below it by

5

0

the amplitude of the overdrive voltage (V − V ).

TH

CC

1

10

100

1000

RESET OVERDRIVE V − V (mV)

TH

CC

Figure 7. Maximum Transient Duration without

Causing a Reset Pulse vs. Reset Comparator

Overdrive

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CAT803, CAT809, CAT810

Valid RESET with V_CCUnder 1.0 V

To ensure that the CAT809 RESET pin is in a known state when V is under 1.0 V, a >10 kW pull−down resistor between

CC

RESET pin and GND is recommended. For the CAT810, a pull−up resistor from RESET pin to V is needed.

CC

Power

Supply

Power

Supply

V

CC

V

CC

10 kW

CAT810

RESET

CAT809

RESET

GND

10 kW

GND

Figure 8. RESET Valid with V_CCUnder 1.0 V

Figure 9. RESET Valid with V_CCUnder 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

Buffered

RESET

Power

Supply

V

CC

V

CC

CAT809

RESET

GND

mP

RESET

INPUT

GND

4.7 kW

(For example:

68HC11)

Bi−directional

I/O Pin

Figure 10. Bi−directional Reset Pin Interfacing

Power

Supply

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

V

CC

5 kW

V

CC

CAT803

mP

a different supply which can be higher than the CAT803 V

pin. The value of the pull−up resistor is not critical in most

applications, typical values being between 5 kW and 10 kW.

CC

RESET

INPUT

RESET

GND

Figure 11. Typical CAT803 Open−Drain

Circuit Configuration

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CAT803, CAT809, CAT810

Table 5. ORDERING PART NUMBER

Order Number

Top Mark

(Note 4)

Quantity

per Reel

(Note 5)

NiPdAu (Note 3)

CAT803LSDI−GT3

CAT803MSDI−GT3

CAT803JSDI−GT3

CAT803TSDI−GT3

CAT803SSDI−GT3

CAT803RSDI−GT3

CAT803ZSDI−GT3

CAT803LTBI−GT3

CAT803MTBI−GT3

CAT803JTBI−GT3

CAT803TTBI−GT3

CAT803STBI−GT3

CAT803RTBI−GT3

CAT803ZTBI−GT3

Matte−Tin

NiPdAu

VKA

Matte−Tin

VKL

Voltage

4.63 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

4.63 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

Output

Reset

Package

CAT803LSDI−T3

CAT803MSDI−T3

CAT803JSDI−T3

CAT803TSDI−T3

CAT803SSDI−T3

CAT803RSDI−T3

CAT803ZSDI−T3

CAT803LTBI−T3

CAT803MTBI−T3

CAT803JTBI−T3

CAT803TTBI−T3

CAT803STBI−T3

CAT803RTBI−T3

CAT803ZTBI−T3

Open

Drain

LOW

SC70−3

3,000

Open

Drain

LOW

SOT−23−3

CAT809LSDI−GT3

CAT809MSDI−GT3

CAT809JSDI−GT3

CAT809TSDI−GT3

CAT809SSDI−GT3

CAT809RSDI−GT3

CAT809ZSDI−GT3

CAT809LTBI−GT3

CAT809HTBI−GT3

CAT809MTBI−GT3

CAT809JTBI−GT3

CAT809TTBI−GT3

CAT809STBI−GT3

CAT809RTBI−GT3

CAT809ZTBI−GT3

CAT809VTBI−GT3

CAT809LSDI−T3

CAT809MSDI−T3

CAT809JSDI−T3

CAT809TSDI−T3

CAT809SSDI−T3

CAT809RSDI−T3

CAT809ZSDI−T3

CAT809LTBI−T3

CAT809HTBI−T3

CAT809MTBI−T3

CAT809JTBI−T3

CAT809TTBI−T3

CAT809STBI−T3

CAT809RTBI−T3

CAT809ZTBI−T3

CAT809VTBI−T3

4.63 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

4.63 V

4.55 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

1.60 V

VLA

VLD

CMOS /

Push−Pull

SC70−3

3,000

CMOS /

Push−Pull

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

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8

CAT803, CAT809, CAT810

Table 5. ORDERING PART NUMBER

Order Number

Top Mark

(Note 4)

Quantity

per Reel

(Note 5)

NiPdAu (Note 3)

CAT810LSDI−GT3

CAT810MSDI−GT3

CAT810JSDI−GT3

CAT810TSDI−GT3

CAT810SSDI−GT3

CAT810RSDI−GT3

CAT810ZSDI−GT3

CAT810LTBI−GT3

CAT810MTBI−GT3

CAT810JTBI−GT3

CAT810TTBI−GT3

CAT810STBI−GT3

CAT810RTBI−GT3

CAT810ZTBI−GT3

Matte−Tin

NiPdAu

VHA

Matte−Tin

VHT

Voltage

4.63 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

4.63 V

4.38 V

4.00 V

3.08 V

2.93 V

2.63 V

2.32 V

Output

Reset

Package

CAT810LSDI−T3

CAT810MSDI−T3

CAT810JSDI−T3

CAT810TSDI−T3

CAT810SSDI−T3

CAT810RSDI−T3

CAT810ZSDI−T3

CAT810LTBI−T3

CAT810MTBI−T3

CAT810JTBI−T3

CAT810TTBI−T3

CAT810STBI−T3

CAT810RTBI−T3

CAT810ZTBI−T3

CMOS /

HIGH

SC70−3

Push−Pull

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

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CAT803, CAT809, CAT810

PACKAGE DIMENSIONS

SOT−23, 3 Lead

CASE 527AG−01

ISSUE O

SYMBOL

MIN

NOM

MAX

D

A

A1

b

0.89

0.013

0.37

1.12

0.10

0.50

0.18

3.04

2.64

1.40

3

c

0.085

2.80

D

E1

E

E1

e

2.10

1.20

0.95 BSC

1.90 BSC

0.40 REF

1

2

e1

L

e

e1

L1

0.54 REF

0º

8º

θ

TOP VIEW

A

q

b

L1

L

c

A1

SIDE VIEW

END VIEW

Notes:

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

(2) Complies with JEDEC TO-236.

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CAT803, CAT809, CAT810

PACKAGE DIMENSIONS

SC−70, 3 Lead, 1.25x2

CASE 419AB−01

ISSUE O

SYMBOL

MIN

NOM

MAX

D

0.80

A

1.10

A1

A2

0.00

0.80

0.10

1.00

0.90

b

c

0.15

0.08

1.80

1.15

0.30

0.22

2.20

2.40

1.35

E1

E

D

E

2.00

2.10

E1

e

1.25

0.65 BSC

0.36

L

0.26

0.46

e

L1

L2

0.42 REF

0.15 BSC

TOP VIEW

0º

4º

8º

θ

10º

θ1

q1

A2

A1

A

q

L

b

L1

q1

c

L2

SIDE VIEW

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:

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

ON Semiconductor Website: www.onsemi.com

Order Literature: http://www.onsemi.com/orderlit

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

For additional information, please contact your local

Sales Representative

CAT803/D

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型号:	CAT803SSDI-T3
是否无铅：	不含铅
是否Rohs认证：	符合
生命周期：	Obsolete
IHS 制造商：	ON SEMICONDUCTOR
零件包装代码：	SC-70
包装说明：	GREEN, MO-203, SC-70, 3 PIN
针数：	3
Reach Compliance Code：	unknown
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
风险等级：	5.13
其他特性：	RESET THRESHOLD VOLTAGE IS 2.93V
可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	R-PDSO-G3
JESD-609代码：	e3
长度：	2 mm
湿度敏感等级：	1
信道数量：	1
功能数量：	1
端子数量：	3
最高工作温度：	85 °C
最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP
封装等效代码：	SOT-323
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	3.3 V
认证状态：	Not Qualified
座面最大高度：	1.1 mm
子类别：	Power Management Circuits
最大供电电流 (Isup)：	0.015 mA
最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	1.2 V
标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES
温度等级：	INDUSTRIAL
端子面层：	Tin (Sn)
端子形式：	GULL WING
端子节距：	0.65 mm
端子位置：	DUAL
阈值电压标称：	+2.93V
处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	1.25 mm
Base Number Matches：	1

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