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CAT810RTBI-GT10中文资料

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

Doc. No. 3004, Rev. X

CAT803, CAT809, CAT810

3-Pin Microprocessor Power Supply Supervisors

FeATureS

Precision monitoring of +5.0V (-5%, -10%, -20%), +3.3V (-5%, -10%), +3.0V (-10%) and

+2.5V (-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 = 1.0V 6μA power supply current Power supply transient immunity

Industrial temperature range: -40oC to +85oC Available in RoHS-compliant SOT-23 and SC70 packages

APPLICATIOnS

Computers Servers Laptops Cable modems

Wireless communications embedded control systems White goods Power meters

Intelligent instruments

PDAs and handhe ld equipment

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DESCRIPTIOn

The CAT803, CAT809, and CAT8 0 are supervisory circuits that monitor power supplies in digital systems. The CAT803, CAT809, and CAT8 0 are direct replacements for the MAX803, MAX809 and MAX8 0 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 40 ms after the power supply level has risen above that level. The underlying floating gate technology, AE 2(TM) used by Catalyst Semiconductor, makes it possible to offer any custom reset threshold value. Seven industry standard threshold levels are offered to support +5.0V, +3.3V, +3.0V and +2.5V 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 .0V.

The CAT803, CAT809, and CAT8 0 are available in both the compact 3-pin SOT-23 and SC70 packages.

PIn COnfIGuRATIOn

(CAT803)CAT809(CAT810)

GND

RESET (RESET)

V CC

3-Lead SOT23

3-Lead SC70

THRESHOLD SuffIX SELECTOR

nominal Threshold Voltage Threshold Suffix

Designation

4.63V L 4.38V M 4.00V J 3.08V

T 2.93V S 2.63V R 2.32V

for Ordering Information details, see page 11.

CAT803, CAT809, CAT8102

Doc. No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

PIn DESCRIPTIOnS

Pin number

name

Description

CAT803

CAT809CAT810

GND

Ground

—

RESET Active LOW reset. RESET is asserted if V CC falls below the reset thresh-old and remains low for at least 40ms after V CC rises above the reset threshold.——2

RESET Active HIGH reset. RESET is asserted if V CC falls below the reset thresh-old and remains high for at least 40ms after V CC rises above the reset threshold.333

V CC

Power supply voltage that is monitored.

CAT803, CAT809, CAT810

Doc No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

ELECTRICAL CHARACTERISTICS

V CC = Full range, T A = -40oC to +85oC unless otherwise noted. Typical values at T A = +25oC and V CC = 5V for the L/M/J versions, V CC = 3.3V for the T/S versions, V CC = 3V for the R version and V CC = 2.5V for the Z version.Parameter Symbol

Conditions Min Typ

Max units V CC Range T A = 0oC to +70oC .0 5.5V

T A = -40oC to +85oC .2

5.5Supply Current I CC T A = -40oC to +85oC

V CC < 5.5V, J/L/M 820μA V CC < 3.6V, R/S/T/Z 6 5Reset Threshold Voltage

V TH L Threshold T A = +25oC 4.56 4.63 4.70V T A = -40oC to +85oC 4.50 4.75M Threshold T A = +25oC 4.3 4.38

4.45T A = -40oC to +85oC 4.25 4.50J Threshold T A = +25oC 3.93 4.00 4.06T A = -40oC to +85oC 3.89 4. 0T Threshold T A = +25oC 3.04 3.08 3. T A = -40oC to +85oC 3.00 3. 5S Threshold T A = +25oC 2.89 2.93 2.96T A = -40oC to +85oC 2.85 3.00R Threshold T A = +25oC 2.59 2.63 2.66T A = -40oC to +85oC 2.55 2.70Z Threshold

T A = +25oC 2.28 2.32 2.35T A = -40oC to +85oC

2.25

2.38

AbSOLuTE MAXIMuM RATInGS (1)Any pin with respect to ground -0.3V to +6.0V Input Current, V CC

20mA Output Current, RESET, RESET 20mA Rate of Rise, V CC

00V/μs Continuous Power Dissipation Derate 2.2mW/oC above 70oC (SC70) 75 mW Derate 4mW/oC above 70oC (SOT23)320 mW Operating Temperature Range -40oC to +85oC Storage Temperature Range -65oC to + 05oC Lead Soldering Temperature ( 0 sec)

300oC

note:

( ) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,

and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.

CAT803, CAT809, CAT810

Doc. No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

ELECTRICAL CHARACTERISTICS V CC = Full range, T A = -40oC to +85oC unless otherwise noted. Typical values at T A = +25oC and V CC = 5V for L/M/J versions, V CC = 3.3V for T/S versions, V CC = 3V for R version and V CC = 2.5V for Z version.(continued)

notes:

( ) Production testing done at T A = +25oC; limits over temperature guaranteed by design only.(2) Parameter

Symbol Conditions

Min

Typ (1)Max units Reset Threshold Tempco 30ppm/oC V CC to Reset Delay (Note 2)T D V CC = V TH to (V TH - 00 mV)20μs Reset Active Timeout Period T R

T A = -40oC to +85oC

240

460

RESET Output Voltage Low (Open-drain active LOW, CAT803 and push-pull, ac-tive LOW, CAT809)

V OL V CC = V TH min, I SINK = .2mA CAT803R/S/T/Z, CAT809R/S/T/Z V

V CC = V TH min, I SINK = 3.2mA CAT803J/L/M, CAT809J/L/M 0.4V CC > .0V, I SINK = 50μA 0.3

RESET Output Voltage High (Push-pull, active LOW, CAT809)

V OH V CC = V TH max, I SOURCE = 500μA CAT809R/S/T/Z

0.8 V CC V

V CC = V TH max, I SOURCE = 800μA CAT809J/L/M

V CC - .5

RESET Output Voltage Low (Push-pull, active HIGH, CAT8 0)

V OL V CC > V TH max, I SINK = .2mA CAT8 0R/S/T/Z

0.3V V CC > V TH max, I SINK = 3.2mA CAT8 0J/L/M 0.4

RESET Output Voltage High (Push-pull active HIGH, CAT8 0)

V OH .8V < V CC V TH min, I SOURCE = 50μA

0.8 V CC

CAT803, CAT809, CAT810

Doc No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

TyPICAL OPERATInG CHARACTERISTICS

V CC = Full range, T A = -40oC to +85oC unless otherwise noted. Typical values at T A = +25oC and V CC = 5V for L/M/J versions, V CC =3.3V for T/S versions, V CC = 3V for R version and V CC = 2.5V for Z version.

SUPPLY CURRENT VS. TEMPERATURE

(NO LOAD, CAT8xxR/S/T/Z)12

1086420

-50 0 50 100 150

S U P P L Y C U R R E N T (μA )

TEMPERATURE (?C)

POWER-DOWN RESET DELAY VS. TEMPERATURE

(CAT8xxR/S/T/Z)1412108642

P O W E R -D O W N R E S E T D E L A Y (μS )

TEMPERATURE (?C)

POWER-UP RESET TIMEOUT

VS. TEMPERATURE

260

240220200180160

P O W E R -U P R E S E T T I M E O U T (m S )

TEMPERATURE (?C)NORMALIZED RESET THRESHOLD

VS. TEMPERATURE

1.0002

10.99980.99960.99940.99920.9990.9988

0 20 40 60 80 100 120

N O R M A L I Z E D T H R E S H O L D

TEMPERATURE (?C)

-50 0 50 100 150

CAT803, CAT809, CAT8106

Doc. No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

5V 0V

5V RESET

RESET

V TH V CC

5V DETAILED DESCRIPTIOnS

RESET TIMInG

The reset signal is asserted LOW for the CAT803/ CAT809 and HIGH for the CAT8 0 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 40ms after the power supply voltage has risen above the threshold.

figure 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive

T R A N S I E N T D U R A T I O N (μs )

V CC TRAnSIEnT RESPOnSE

The CAT803/CAT809/CAT8 0 protect μPs against brownout failure. Short duration transients of 4μsec or less and 00mV amplitude typically do not cause a false RESET.

Figure 2 shows the maximum pulse duration of negative-going V CC transients that do not cause a reset condition.

figure 1. Reset Timing Diagram

As the amplitude of the transient goes further below the threshold (increasing V TH - V CC ), the maximum pulse duration decreases. In this test, the V CC starts from an initial voltage of 0.5V above the threshold and drops below it by the amplitude of the overdrive voltage (V TH - V CC ).

CAT803, CAT809, CAT810

Doc No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

VALID RESET WITH V CC unDER 1.0V

To ensure that the CAT809 RESET pin is in a known state when V CC is under 1.0V, a >10k? pull-down resistor between RESET pin and GND is recommended. For the CAT810, a pull-up resistor from RESET pin to V CC is needed.

Power Supply

Figure 3. reSeT Valid with V CC under 1.0V figure 4. RESET Valid with V CC under 1.1V

figure 5. bi-directional Reset Pin Interfacing

Power Supply

bI-DIRECTIOnAL RESET PIn InTERfACInG The CAT809/8 0 can interface with μP/μC bi-directional reset pins by connecting a 4.7k? resistor in series with the CAT809/8 0 reset output and the μP/μC bi-directional reset pin.

CAT803, CAT809, CAT810

Doc. No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

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 6. 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 V CC pin. The value of the pull-up resistor is not critical in most applications, typical values being between 5k? and 10k?.

Power Supply

figure 6. Typical CAT803 Open-Drain Circuit Configuration

CAT803, CAT809, CAT810

Doc No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

PACkAGE InfORMATIOn

Plastic SOT-23 (3-Pin)

notes:

(1) This part is compliant with JEDEC specification TO-236(2) Die is face up for mold and trim/form

(3) Dimensions are exclusive of mold flash and metal burr

Inches Millimeters Min

Max Min Max Plastic SOT-23 (3-Pin)

A 0.03500.044 0.89 . 2A 0.00050.00390.0 30. 0

B 0.0 460.0 970.370.50c 0.00330.007 0.0850. 8D 0. 020. 97 2.80 3.04E 0.04720.055 .20 .40e 0.03500.04060.89 .03e 0.070 0.0807 .78 2.05H 0.08270. 039 2. 0 2.64?0o8o0o8oL 0.00830.0 6 0.2750.4 L

0.0 60

0.0270

0.275

0.685

For current Tape and reel information, download the PDf file from:

https://www.wendangku.net/doc/d517106671.html,/documents/tapeandreel.pdf

CAT803, CAT809, CAT810

Doc. No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

PACkAGE InfORMATIOn

SC70 (3-Lead)

Inches Millimeters Min

Max Min Max Plastic SC70 (3-Pin)

A 0.03 50.04330.80 . 0A 0.00000.00390.000. 0A20.03 50.03940.80 .00b 0.00590.00 80. 50.30c 0.00350.007 0.090. 8D 0.07090.0866 .80 2.20E 0.04530.053 . 5 .35E10.07090.0945 .80 2.40e 0.0255 BSC 0.65BSC

L 0.0 020.0 8 0.260.46L

0.0 08

0.0226

0.275

0.575

notes:

(1) This part is compliant with JEDEC specification MO-203.(2) Die is face up for mold. Die is facing down for trim/form.(3) Dimensions are exclusive of mold flash and metal burr.

For current Tape and reel information, download the PDf file from:

https://www.wendangku.net/doc/d517106671.html,/documents/tapeandreel.pdf

CAT803, CAT809, CAT810

Doc No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

EXAMPLE Of ORDERInG InfORMATIOn

(2) (3) (4)

Prefix Device #

Suffix

TOP MARkInG

notes:

( ) All packages are RoHS-compliant (Lead-free, Halogen-free).

(2) The standard lead finish is Matte-Tin. Contact factory for other lead finishes.

(3) The device used in the example above is a CAT809STBI-GT 0 (Push-Pull / Active Low Output, trip level of 2.85V to 3.00V NiPdAu, Tape

and Reel).

(4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office.

Device (1)SOT-23 PbSn Finish (2)

SOT-23 RoHS Matte Finish (2)SOT-23 RoHS

niPdAu Finish (2)(3)SC70 PbSn Finish (2)SC70 RoHS Matte Finish (2)

SC70 RoHS

niPdAu Finish (2)(3)

CAT803x N/A RPYM RNYM N/A RP__RN__CAT809x PAYM PBYM NRYM PA__PB__NR__CAT8 0x

PCYM

PDYM

NSYM

PC__

PD__

NS__

notes:

( ) All theshold trip level options have the same marking.

(2) The “YM” in the SOT-23 package marking indicates the Year and Month of roduction and the “_” in the SC70 package marking indicates the

assembly location.

(3) All NiPdAu devices will be marked to indicate product type and package. Threshold and full part numbers will be provided on box and reel

labels as well as all Shipping documents.

CAT803, CAT809, CAT810 2

Doc. No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

CAT803LSDI CAT803LSDI-G CAT809LSDI CAT809LSDI-G CAT8 0LSDI CAT8 0LSDI-G CAT803MSDI CAT803MSDI-G CAT809MSDI CAT809MSDI-G CAT8 0MSDI CAT8 0MSDI-G CAT803JSDI CAT803JSDI-G CAT809JSDI CAT809JSDI-G CAT8 0JSDI CAT8 0JSDI-G CAT803TSDI CAT803TSDI-G CAT809TSDI CAT809TSDI-G CAT8 0TSDI CAT8 0TSDI-G CAT803SSDI CAT803SSDI-G CAT809SSDI CAT809SSDI-G CAT8 0SSDI CAT8 0SSDI-G CAT803RSDI CAT803RSDI-G CAT809RSDI CAT809RSDI-G CAT8 0RSDI CAT8 0RSDI-G CAT803ZSDI CAT803ZSDI-G CAT809ZSDI CAT809ZSDI-G CAT8 0ZSDI CAT8 0ZSDI-G CAT803LTBI CAT803LTBI-G CAT809LTBI CAT809LTBI-G CAT8 0LTBI CAT8 0LTBI-G CAT803MTBI CAT803MTBI-G CAT809MTBI CAT809MTBI-G CAT8 0MTBI CAT8 0MTBI-G CAT803JTBI CAT803JTBI-G CAT809JTBI CAT809JTBI-G CAT8 0JTBI CAT8 0JTBI-G CAT803TTBI CAT803TTBI-G CAT809TTBI CAT809TTBI-G CAT8 0TTBI CAT8 0TTBI-G CAT803STBI CAT803STBI-G CAT809STBI CAT809STBI-G CAT8 0STBI CAT8 0STBI-G CAT803RTBI CAT803RTBI-G CAT809RTBI CAT809RTBI-G CAT8 0RTBI CAT8 0RTBI-G CAT803ZTBI

CAT803ZTBI-G

CAT809ZTBI

CAT809ZTBI-G

CAT8 0ZTBI

CAT8 0ZTBI-G

ORDERInG PART nuMbER

CAT803, CAT809, CAT810

Doc No. 3004, Rev. X

? 2007 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

REVISIOn HISTORy

Date rev.reason

0/29/2003N Updated VCC Transient Response text and Figure 2 0/30/2003O Updated Power Up Reset Timeout vs. Temperature curve 3/ 0/2004

Corrected temperature range Updated Description

Updated Ordering Information

Updated Absolute Maximum Ratings Updated Electrical Characteristics 03/23/2004Q

Updated Description

Updated Ordering Information

Updated Absolute Maximum Ratings Updated Electrical Characteristics

Updated Typical Operating Characteristics Updated Package Information

3/25/2004R

Changed Preliminary designation to Final

Updated Max Reset Active Timeout Period in Electrical Characteristics Updated package drawings 5/ 0/2004S Updated top marking table 2/28/2005

Updated Features

Updated Ordering Information Updated Top Marking

02/ 7/2006Q Updated Typical Operating Characteristics

08/ 0/2006

Updated Features Updated Description

Updated Max Reset Active Timeout Period in Electrical Characteristics Updated Figure

Updated Package Information Correct Revision Number 0/ 7/2006V

Updated Top Marking

Updated Detailed Description Adding CAT803

02/ 2/2007W

Updated Electrical Characteristics Updated Figure

Updated Ordering Information

03/20/2007X

Updated Detailed Description s

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Document No: 3004Revision: X Issue date: 03.20.07