CAT809SSBI-T [CATALYST]
Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SC-70, 3-PIN;
| 型号： | CAT809SSBI-T |
| 厂家： | 
CATALYST SEMICONDUCTOR |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SC-70, 3-PIN 光电二极管 |
| 文件： | 总12页 (文件大小：81K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary Information
E
CAT809, CAT810
3-Pin Microprocessor Power Supply Supervisors
TM
FEATURES
ꢀ Precision monitoring of
+5.0 V (+/- 5%, +/- 10%, +/- 20%),
+3.3 V (+/- 5%, +/ 10%),
ꢀ Direct replacements for the MAX809 and
MAX810 in applications operating over the
industrial temperature range
+3.0 V (+/- 10%) and
+2.5 V (+/- 5%) power supplies
ꢀ Reset valid down to VCC = 1.0 V
ꢀ 6 µA power supply current
ꢀ Offered in two output configurations:
- push-pull RESET, active LOW (CAT809)
- push-pull RESET, active HIGH (CAT810)
ꢀ Power supply transient immunity
ꢀ Compact 3-pin SOT23 and SC70 packages
APPLICATIONS
ꢀ Computers
ꢀ Embedded control systems
ꢀ White goods
ꢀ Servers
ꢀ Laptops
ꢀ Power meters
ꢀ Cable modems
ꢀꢀ Wireless communications
ꢀ Intelligent instruments
ꢀ PDAs and handheld equipment
DESCRIPTION
Seven industry standard threshold levels are offered to
support +5.0 V, +3.3 V, +3.0 V and +2.5 V systems.
The CAT809 and CAT810 are µP supervisory circuits
thatmonitorpowersuppliesindigitalsystems.Featuring
reducedpowersupplycurrent,theCAT809andCAT810
are direct replacements for the MAX809 and MAX810 in
applications operating over the industrial temperature
range.
The CAT809 features a RESET push-pull output (active
LOW) and the CAT810 features a RESET push-pull
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.
Thesedevicesgeneratearesetsignal,whichisasserted
whilethepowersupplyvoltageisbelowapresetthreshold
level and for at least 140 ms after the power supply level
has risen above that level. The underlying floating gate
technology used by Catalyst Semiconductor, makes it
possible to offer any custom reset threshold value.
The CAT809/810 are fully specified over the industrial
temperature range (-40˚C to 85˚C) and are available in
compact 3-pin SOT23 and SC70 packages.
PIN CONFIGURATION
THRESHOLD SUFFIX SELECTOR
Nominal Threshold Threshold Suffix
Voltage
4.63V
4.38V
4.00V
3.08V
2.93V
2.63V
2.32V
Designation
GND
1
2
L
M
J
CAT809
(CAT810)
3
V
CC
RESET
(RESET)
T
S
R
Z
3-Lead SOT23
3-Lead SC70
© 2004 by Catalyst Semiconductor, Inc., Patent Pending
Characteristics subject to change without notice
Doc. No. 3004, Rev. P
1
CAT809, CAT810
Preliminary Information
ORDERING INFORMATION
Ordering Part Number
RESET Polarity
Package
Parts per Reel
CAT809_TPI-T
CAT809_TPI-T10
CAT809_TBI-T
CAT809_TBI-T10
CAT809_SBI-T
CAT809_SBI-T10
CAT809_SDI-T
CAT809_SDI-T10
CAT810_TPI-T
CAT810_TPI-T10
CAT810_TBI-T
CAT810_TBI-T10
CAT810_SBI-T
CAT810_SBI-T10
CAT810_SDI-T
CAT810_SDI-T10
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
3-pin, SOT23
3-pin, SOT23
3k
10k
3-pin, SOT23 Green
3-pin, SOT23 Green
3-pin, SC70
3k
10k
3k
3-pin, SC70
10k
3k
3-pin, SC70 Green
3-pin, SC70 Green
3-pin, SOT23
10k
3k
3-pin, SOT23
10k
3k
3-pin, SOT23 Green
3-pin, SOT23 Green
3-pin, SC70
10k
3k
3-pin, SC70
10k
3k
3-pin, SC70 Green
3-pin, SC70 Green
10k
Insert threshold suffix (L, M, J, T, S, R or Z) into the blank position. Example: CAT809LTPI-T for 4.63 V.
TOP MARKING
SOT23
SOT23 Green
SC70
SC70 Green
CAT809L
CAT809M
CAT809J
CAT809T
CAT809S
CAT809R
CAT809Z
CAT810L
CAT810M
CAT810J
CAT810T
CAT810S
CAT810R
CAT810Z
AAYM
ABYM
CWYM
ACYM
ADYM
AFYM
CFYM
AGYM
AHYM
AIYM
DAYM
DBYM
CDYM
DCYM
DDYM
DFYM
CAYM
DGYM
DHYM
DIYM
FA_
FB_
FG_
FE_
FD_
FC_
FF_
FH_
FJ_
GA_
GB_
GG_
GE_
GD_
GC_
GF_
GH_
GJ_
FP_
FM_
FL_
FK_
FN_
GP_
GM_
GL_
GK_
GN_
AJYM
AKYM
ALYM
CGYM
DJYM
DKYM
DLYM
CBYM
Where YM stands for Year and Month for the SOT23 package and the blank is replaced by the assembly location for the SC70 package.
Doc. No. 3004, Rev. P
Patent Pending
2
Preliminary Information
PIN DESCRIPTIONS
CAT809, CAT810
Pin Number
Name
CAT809 CAT810
Description
1
2
1
GND
Ground
—
RESET Active LOW reset. RESET is asserted if V
falls below the reset threshold
rises above the reset threshold.
CC
CC
and remains low for at least 140ms after V
—
3
2
3
RESET Active HIGH reset. RESET is asserted if V
falls below the reset
CC
threshold and remains high for at least 140ms after V
the reset threshold.
rises above
CC
V
CC
Power supply voltage that is monitored.
Patent Pending
Doc. No. 3004, Rev. P
3
CAT809, CAT810
Preliminary Information
Operating Temperature Range........... -40°C to +85°C
Storage Temperature Range ............ -65°C to +105°C
ABSOLUTE MAXIMUM RATINGS*
Any pin with respect to ground .......... -0.3 V to +6.0 V
Input Current, VCC ............................................. 20 mA
Output Current, RESET, RESET ...................... 20 mA
Rate of Rise, VCC ............................................................. 100 V/µs
Continuous Power Dissipation
Lead Soldering Temperature (10 sec).............. 300°C
*COMMENT
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
outsideofthoselistedintheoperationalsectionsofthisspecificationisnot
implied. Exposure to any absolute maximum rating for extended periods
may affect device performance and reliability.
Derate 2.2mW/˚C above 70˚C (SC70)............ 175 W
Derate 4mW/˚C above 70˚C (SOT23) ......... 320 mW
ELECTRICAL CHARACTERISTICS
V
CC
= Full range, T = -40°C to +85°C unless otherwise noted. Typical values at T = +25˚C are V = 5 V for the
A 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
CC
CC
Parameter
Symbol
Conditions
Min
1.0
1.2
Typ
Max
5.5
Units
VCC Range
TA = 0˚C to +70˚C
V
TA = -40˚C to +85˚C
5.5
VCC < 5.5 V, J/L/M
VCC < 3.6 V, R/S/T/Z
TA = +25˚C
8
6
20
Supply Current
ICC
TA = -40˚C to +85˚C
15
µA
4.56
4.50
4.31
4.25
3.93
3.89
3.04
3.00
2.89
2.85
2.59
2.55
2.28
2.25
4.63
4.70
4.75
4.45
4.50
4.06
4.10
3.11
3.15
2.96
3.00
2.66
2.70
2.35
2.38
L Threshold
M Threshold
TA = -40˚C to +85˚C
TA = +25˚C
4.38
4.00
3.08
2.93
2.63
2.32
TA = -40˚C to +85˚C
TA = +25˚C
J Threshold
T Threshold
TA = -40˚C to +85˚C
TA = +25˚C
Reset
Threshold
Voltage
TA = -40˚C to +85˚C
TA = +25˚C
VTH
V
S Threshold
R Threshold
Z Threshold
TA = -40˚C to +85˚C
TA = +25˚C
TA = -40˚C to +85˚C
TA = +25˚C
TA = -40˚C to +85˚C
Doc. No. 3004, Rev. P
Patent Pending
4
Preliminary Information
CAT809, CAT810
(continued)
ELECTRICAL CHARACTERISTICS
V
CC
= Full range, T = -40˚C to +85˚C unless otherwise noted. Typical values at T = +25˚C are V
= 5 V for
A
A
CC
L/M/J versions, V
= 3.3 V for T/S versions, V
= 3 V for R version and V
= 2.5 V for Z version.
CC
CC
CC
Parameter
Symbol
Conditions
Min
Typ
30
Max
Units
ppm/˚C
mV/Year
mV/Year
µs
Reset Threshold Tempco
Reset Threshold Drift
TA = 55˚C
TA = 85˚C
-0.2
-2.0
20
VCC to Reset Delay (Note 2)
Reset Active Timeout Period
VCC = VTH to (VTH - 100 mV)
TA = -40˚C to +85˚C
140
240
560
0.3
ms
VCC = VTH min, ISINK = 1.2 mA
CAT809R/S/T/Z
RESET Output Voltage Low
(Push-pull, active LOW,
CAT809)
VOL
VCC = VTH min, ISINK = 3.2 mA
CAT809J/L/M
V
V
0.4
0.3
VCC > 1.0 V, ISINK = 50 µA
VCC = VTH max, ISOURCE = 500 µA
CAT809R/S/T/Z
0.8 VCC
RESET Output Voltage High
(Push-pull, active LOW,
CAT809)
VOH
VCC = VTH max, ISOURCE = 800 µA
CAT809J/L/M
VCC - 1.5
VCC > VTH max, ISINK = 1.2 mA
CAT810R/S/T/Z
RESET Output Voltage Low
(Push-pull, active HIGH,
CAT810)
VOL
V
V
VCC > VTH max, ISINK = 3.2 mA
CAT810L/M
0.3
0.4
RESET Output Voltage High
(Push-pull active HIGH,
CAT810)
VOH
1.8 V < VCC ≤ VTH min, ISOURCE = 150 µA
0.8 VCC
Note 1: Production testing done at T = +25˚C; limits over temperature guaranteed by design only.
A
Note 2: RESET output for the CAT809; RESET output for the CAT810
Patent Pending
Doc. No. 3004, Rev. P
5
CAT809, CAT810
Preliminary Information
TYPICAL OPERATING CHARACTERISTICS
V
= Full range, T = -40˚C to +105˚C unless otherwise noted. Typical values at T = +25˚C are V
= 5 V for
CC
A
A
CC
L/M/J versions, V =3.3 V for T/S versions, V
CC
= 3 V for R version and V
= 2.5 V for Z version.
CC
CC
POWER-UP RESET TIMEOUT
VS. TEMPERATURE
SUPPLY CURRENT VS. TEMPERATURE
(NO LOAD, CAT8xxR/S/T/Z)
260
12
10
8
V =5.5V
CC
240
220
200
180
160
V
=5V
CC
V =3.6V
CC
6
4
V =2.5V
CC
2
0
-50
0
50
100
150
-50
0
50
100
150
TEMPERATURE (˚C)
TEMPERATURE (˚C)
POWER-DOWN RESET DELAY VS. TEMPERATURE
(CAT8xxR/S/T/Z)
NORMALIZED RESET THRESHOLD
VS. TEMPERATURE
1.0002
1
14
12
10
8
0.9998
0.9996
0.9994
0.9992
0.999
0.9988
6
4
2
0
-50
0
50
100
150
0
20
40
60
80
100 120
TEMPERATURE (˚C)
TEMPERATURE (˚C)
Doc. No. 3004, Rev. P
Patent Pending
6
Preliminary Information
CAT809, CAT810
DETAILED DESCRIPTIONS
RESET TIMING
TheresetsignalisassertedLOWfortheCAT809andHIGHfortheCAT810whenthepowersupplyvoltage fallsbelow
the threshold trip voltage and remains asserted for at least 140ms after the power supply voltage has risen above the
threshold.
Threshold
Voltage
Power
Supply
Voltage
5V
0V
Reset Timeout Period
140ms
minimum
5V
0V
5V
0V
CAT809
CAT810
RESET
RESET
FIGURE 1. RESET TIMING DIAGRAM
V
CC
TRANSIENT RESPONSE
The CAT809/810 protect µPs against brownout failure. Short duration transients of 4µsec or less and 100 mV
amplitude typically do not cause a false RESET.
Figure 2 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 0.5V above the threshold and drops below it by the
amplitude of the overdrive voltage (VTH - VCC).
30
T
= 25°C
AMB
25
20
15
10
5
CAT809Z
CAT809M
10
0
1
100
1000
RESET OVERDRIVE V - V [mV]
TH CC
FIGURE 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive
Patent Pending
Doc. No. 3004, Rev. P
7
CAT809, CAT810
Preliminary Information
VALID RESET WITH V
UNDER 1.0 V
CC
To ensure that the CAT809 RESET pin is in a known state when VCC is under 1.0 V, a 100 kΩ pull-down resistor
between RESET pin and GND is recommended; the value is not critical. For the CAT810, a pull-up resistor from
RESET pin to VCC is needed.
Power
Supply
Power
Supply
V
CC
V
CC
100kΩ
CAT810
RESET
CAT809
RESET
GND
100kΩ
GND
FIGURE 3. RESET Valid with VCC Under 1.0 V
FIGURE 4. RESET Valid with VCC Under 1.1 V
BI-DIRECTIONAL RESET PIN INTERFACING
The CAT809/810 can interface with µP/µC bi-directional reset pins by connecting a 4.7 kΩ resistor in series with the
CAT809/810 reset output and the µP/µC bi-directional reset pin.
BUF
Buffered
RESET
Power
Supply
V
CC
CAT809
µP
4.7kΩ
(For example: 68HC11)
RESET
INPUT
RESET
GND
GND
Bi-directional I/O Pin
FIGURE 5. Bi-directional Reset Pin Interfacing
Doc. No. 3004, Rev. P
Patent Pending
8
Preliminary Information
CAT809, CAT810
OTHER SUPERVISORY PRODUCTS
Function
CAT1161/3
CAT1162
CAT809
CAT810
CAT811
CAT812
With 16k Bit Serial EEPROM Memory
Watchdog Timer
Manual Reset Input
Active Low Reset
Active High Reset
Dual Polarity Reset Outputs
Package
8-pin
DIP and SOIC
8-pin
DIP and SOIC
3-pin
SOT23 and
SC70
3-pin
SOT23 and
SC70
4-pin
SOT143
4-pin
SOT143
Patent Pending
Doc. No. 3004, Rev. P
9
CAT809, CAT810
Preliminary Information
PACKAGE INFORMATION
Plastic SOT-23 (3-Pin)
Inches
Millimeters
Min
Max
Min
Max
Plastic SOT-23 (3-Pin)
0.51 MAX
0.37 MIN
A
0.031
0.004
0.015
0.003
0.110
0.047
0.035
0.070
0.083
0.050
0.010
0.020
0.007
0.120
0.055
0.040
0.080
0.1039
0.80
0.10
0.37
0.085
2.80
1.20
0.89
1.78
2.10
1.27
0.25
0.51
0.18
3.04
1.40
1.03
2.05
2.64
A1
B
C
D
E
2.64 MAX
2.10 MIN
e
e1
H
L
1.03 MAX
0.89 MIN
0.027 REF
0.069 REF
2.05 MAX
1.78 MIN
S
0.018
0.024
0.45
0.60
3.04 MAX
2.80 MIN
1.40 MAX
1.20 MIN
0.18 MAX
0.085 MIN
0.94 MAX
0.88 MIN
1.12 MAX
0.89 MIN
0.20
GAUGE PLANE
0.10 MAX
0.013 MIN
0.54 REF
0.41 MAX
0.21 MIN
Doc. No. 3004, Rev. P
Patent Pending
10
Preliminary Information
CAT809, CAT810
PACKAGE INFORMATION
SC-70 Package (3-Lead)
2.
0.30
0.15
0.0118
0.0059
0.0256 [0.65] REF.
2
1
2.40
1.80
0.0945
0.0709
(S)
5.
0.0531 1.35
0.0453 1.15
3
LEADFRAME
THICKNESS
0.0071 0.18
0.0035 0.09
GUAGE PLANE
0.0059 [0.15] BSC.
0.0181 0.46
0.0102 0.26
0.575
0.275
0.0226
0.0108
1.
2.20
1.80
0.0866
0.0709
0.0394 [1.00] MAX.
0.0394 [0.925] MAX.
0.10
0.00
0.0039
0.0000
(S)
5.
0.0039 [0.10] MAX. (S)
5.
NOTE:
1.
DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR CATE BURRS.
DOES NOT INCLUDE INTER-LEAD FLASH OR PROTRUSIONS.
DIE IS FACING UP FOR MOLD. DIE IS FACING DOWN FOR TRIM/FORM.
THIS PART IS COMPLIANT WITH EIAJ SPECIFICATION SC-70
2.
3.
4.
5.
LEAD SPAN/STAND OFF HEIGHT/COPLANARITY ARE CONSICDERED
AS SPECIAL CHARACTERISTIC(S).
6.
CONTROLLING DIMENSIONS IN INCHES [mm]
Patent Pending
Doc. No. 3004, Rev. P
11
REVISION HISTORY
Date
Rev.
Reason
10/29/2003
10/30/2003
2/23/2004
N
O
P
Updated VCC Transient Response text and Figure 2
Updated Power Up Reset Timeout vs. Temperature curve
Corrected temperature range
Updated Description
Updated Ordering Information
Updated Absolute Maximum Ratings
Updated Electrical Characteristics
Copyrights, Trademarks and Patents
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
2
DPP ™
AE ™
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. For a complete list of patents
issued to Catalyst Semiconductor contact the Company’s corporate office at 408.542.1000.
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PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE
RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING
OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
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other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a
situation where personal injury or death may occur.
Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets
labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.
Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate
typical semiconductor applications and may not be complete.
Catalyst Semiconductor, Inc.
Corporate Headquarters
1250 Borregas Avenue
Sunnyvale, CA 94089
Phone: 408.542.1000
Fax: 408.542.1200
Publication #: 3004
Revison:
Issue date:
Type:
P
2/23/04
Preliminary
www.catalyst-semiconductor.com
Patent Pending
相关型号：
CAT809SSDI-T10
Power Supply Support Circuit, Fixed, 1 Channel, +2.93VV, PDSO3, GREEN, MO-203, SC-70, 3 PIN
CATALYST
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