Catalyst CAT810MTBIT10 3-pin microprocessor power supply supervisor Datasheet

CAT803, CAT809, CAT810
3-Pin Microprocessor Power Supply
Supervisors
Features
DEscription
■
Precision monitoring of
+5.0V (-5%, -10%, -20%),
+3.3V (-5%, -10%),
+3.0V (-10%) and
+2.5V (-5%) power supplies
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.
■
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 = 1.0V
■
6µA power supply current
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(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.
■
Power supply transient immunity
■
Industrial temperature range: -40ºC to +85ºC
■
Available in RoHS-compliant SOT-23 and SC70
packages
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).
Applications
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 1.0V.
■
Computers
■
Servers
■
Laptops
■
Cable modems
■
Wireless communications
■
Embedded control systems
■
White goods
■
Power meters
■
Intelligent instruments
■
PDAs and handheld equipment
The CAT803, CAT809, and CAT810 are available in both
the compact 3-pin SOT-23 and SC70 packages.
For Ordering Information details, see page 11.
Threshold suffix selector
Pin Configuration
3-Lead SOT23
3-Lead SC70
GND
1
RESET 2
(RESET)
(CAT803)
CAT809
(CAT810)
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
VCC
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
Z
Doc. No. 3004, Rev. X
CAT803, CAT809, CAT810
Pin Descriptions
Pin Number
CAT803
Name
Description
GND
Ground
CAT809 CAT810
1
1
1
2
2
—
RESET Active LOW reset. RESET is asserted if VCC falls below the reset threshold and remains low for at least 140ms 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 140ms after VCC rises above the reset
threshold.
3
3
3
Doc. No. 3004, Rev. X
VCC
Power supply voltage that is monitored.
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT803, CAT809, CAT810
Absolute Maximum Ratings(1)
Any pin with respect to ground
-0.3V to +6.0V
Input Current, VCC
20mA
Output Current, RESET, RESET
20mA
Rate of Rise, VCC
100V/µs
Continuous Power Dissipation
Derate 2.2mW/ºC above 70ºC (SC70)
175 mW
Derate 4mW/ºC above 70ºC (SOT23)
320 mW
Operating Temperature Range
-40ºC to +85ºC
Storage Temperature Range
-65ºC to +105ºC
Lead Soldering Temperature (10 sec)
300ºC
Note:
(1) 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.
Electrical CHARACTERISTICS
VCC = Full range, TA = -40ºC to +85ºC unless otherwise noted. Typical values at TA = +25ºC and VCC = 5V for the
L/M/J versions, VCC = 3.3V for the T/S versions, VCC = 3V for the R version and VCC = 2.5V for the Z version.
Parameter
Symbol
VCC Range
Conditions
Min
TA = 0ºC to +70ºC
1.0
TA = -40ºC to +85ºC
Supply Current
Reset
Threshold
Voltage
ICC
VTH
TA = -40ºC to +85ºC
L Threshold
M Threshold
J Threshold
T Threshold
S Threshold
R Threshold
Z Threshold
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Typ
1.2
Max
Units
5.5
V
5.5
VCC < 5.5V, J/L/M
8
20
VCC < 3.6V, R/S/T/Z
6
15
4.63
4.70
TA = +25ºC
4.56
TA = -40ºC to +85ºC
4.50
TA = +25ºC
4.31
TA = -40ºC to +85ºC
4.25
TA = +25ºC
3.93
TA = -40ºC to +85ºC
3.89
TA = +25ºC
3.04
TA = -40ºC to +85ºC
3.00
TA = +25ºC
2.89
TA = -40ºC to +85ºC
2.85
TA = +25ºC
2.59
TA = -40ºC to +85ºC
2.55
TA = +25ºC
2.28
TA = -40ºC to +85ºC
2.25
µA
V
4.75
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
Doc No. 3004, Rev. X
CAT803, CAT809, CAT810
Electrical CHARACTERISTICS (continued)
VCC = Full range, TA = -40ºC to +85ºC unless otherwise noted. Typical values at TA = +25ºC and VCC = 5V for
L/M/J versions, VCC = 3.3V for T/S versions, VCC = 3V for R version and VCC = 2.5V for Z version.
Parameter
Symbol Conditions
Min
Reset Threshold Tempco
VCC to Reset Delay (Note 2)
TD
VCC = VTH to (VTH - 100 mV)
Reset Active Timeout Period
TR
TA = -40ºC to +85ºC
RESET Output Voltage Low
(Open-drain active LOW,
CAT803 and push-pull, active Low, CAT809)
VOL
VOH
RESET Output Voltage Low
(Push-pull, active High,
CAT810)
VOL
RESET Output Voltage High
(Push-pull active High,
CAT810)
Units
30
ppm/ºC
20
µs
240
460
ms
VCC = VTH min, ISINK = 3.2mA
CAT803J/L/M, CAT809J/L/M
0.4
V
VCC > 1.0V, ISINK = 50µA
0.3
VCC = VTH min, ISINK = 1.2mA
CAT803R/S/T/Z, CAT809R/S/T/Z
RESET Output Voltage High
(Push-pull, active Low,
CAT809)
140
Typ(1) Max
VOH
VCC = VTH max, ISOURCE = 500µA
CAT809R/S/T/Z
0.8 VCC
VCC = VTH max, ISOURCE = 800µA
CAT809J/L/M
VCC - 1.5
V
VCC > VTH max, ISINK = 1.2mA
CAT810R/S/T/Z
0.3
VCC > VTH max, ISINK = 3.2mA
CAT810J/L/M
0.4
1.8V < VCC ­ VTH min,
ISOURCE = 150µA
0.8 VCC
V
V
Notes:
(1) Production testing done at TA = +25ºC; limits over temperature guaranteed by design only.
(2) RESET output for the CAT809; RESET output for the CAT810.
Doc. No. 3004, Rev. X
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT803, CAT809, CAT810
typical operating Characteristics
VCC = Full range, TA = -40ºC to +85ºC unless otherwise noted. Typical values at TA = +25ºC and VCC = 5V for
L/M/J versions, VCC=3.3V for T/S versions, VCC = 3V for R version and VCC = 2.5V for Z version.
SUPPLY CURRENT VS. TEMPERATURE
(NO LOAD, CAT8xxR/S/T/Z)
260
12
240
SUPPLY CURRENT (µA)
POWER-UP RESET TIMEOUT (mS)
POWER-UP RESET TIMEOUT
VS. TEMPERATURE
VCC=5V
220
200
VCC=2.5V
180
160
-50
0
50
100
10
VCC=3.6V
6
4
2
0
150
VCC=5.5V
8
-50
0
TEMPERATURE (˚C)
12
1
NORMALIZED THRESHOLD
POWER-DOWN RESET DELAY (µS)
1.0002
10
8
6
4
2
50
100
0.9998
0.9996
0.9994
0.9992
0.999
0.9988
150
TEMPERATURE (˚C)
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
150
NORMALIZED RESET THRESHOLD
VS. TEMPERATURE
14
0
100
TEMPERATURE (˚C)
POWER-DOWN RESET DELAY VS. TEMPERATURE
(CAT8xxR/S/T/Z)
0
-50
50
0
20
40
60
80
100
120
TEMPERATURE (˚C)
Doc No. 3004, Rev. X
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 140ms after the power
supply voltage has risen above the threshold.
VCC
5V
VTH
0V
TR
(140msec
minimum)
TD
5V
RESET
CAT803, CAT809
0V
5V
RESET
CAT810
0V
Figure 1. Reset Timing Diagram
VCC Transient Response
The CAT803/CAT809/CAT810 protect µPs against
brownout failure. Short duration transients of 4µsec
or less and 100mV amplitude typically do not cause a
false RESET.
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).
TRANSIENT DURATION (µs)
Figure 2 shows the maximum pulse duration of negativegoing VCC transients that do not cause a reset condition.
Figure 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive
Doc. No. 3004, Rev. X
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT803, CAT809, CAT810
Valid reset with VCC under 1.0V
To ensure that the CAT809 RESET pin is in a known
state when VCC is under 1.0V, a >10kΩ 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
CAT810
CAT809
10kΩ
RESET
RESET
10kΩ
GND
GND
Figure 3. RESET Valid with VCC Under 1.0V
Figure 4. RESET Valid with VCC Under 1.1V
Bi-directional reset pin interfacing
The CAT809/810 can interface with µP/µC bi-directional
reset pins by connecting a 4.7kΩ resistor in series with
the CAT809/810 reset output and the µP/µC bi-directional
reset pin.
BUF
Power
Supply
Buffered
RESET
VCC
VCC
CAT809
µP
RESET
INPUT
RESET
GND
Bi-directional
(For example:
68HC11)
GND
I/O Pin
Figure 5. Bi-directional Reset Pin Interfacing
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc No. 3004, Rev. X
CAT803, CAT809, CAT810
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 VCC pin. The value of the pull-up resistor
is not critical in most applications, typical values being
between 5kΩ and 10kΩ.
Power
Supply
VCC
5kΩ
VCC
CAT803
µP
RESET
RESET
INPUT
GND
GND
Figure 6. Typical CAT803 Open-Drain Circuit Configuration
Doc. No. 3004, Rev. X
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT803, CAT809, CAT810
Package information
Plastic SOT-23 (3-Pin)
B
E
H
e
e
D
E
c
A
ө
A
Inches
Min
L
L
Millimeters
Max
Min
Max
Plastic SOT-23 (3-Pin)
A
0.0350
0.0441
0.89
1.12
A1
0.0005
0.0039
0.013
0.10
B
0.0146
0.0197
0.37
0.50
c
0.0033
0.0071
0.085
0.18
D
0.1102
0.1197
2.80
3.04
E
0.0472
0.0551
1.20
1.40
e
0.0350
0.0406
0.89
1.03
e1
0.0701
0.0807
1.78
2.05
H
0.0827
0.1039
2.10
2.64
ө
0º
8º
0º
8º
L
0.0083
0.0161
0.275
0.41
L1
0.0160
0.0270
0.275
0.685
For current Tape and Reel information,
download the PDF file from:
www.catsemi.com/documents/tapeandreel.pdf
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
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc No. 3004, Rev. X
CAT803, CAT809, CAT810
SC-70 (3-Lead)
Package information
SC70 (3-Lead)
b
E1
e
e
D
A2
A
c
L
A1
θ
L2
L1
Inches
Min
Max
Millimeters
Min
Max
Plastic SC70 (3-Pin)
A
0.0315
0.0433
0.80
1.10
A1
0.0000
0.0039
0.00
0.10
A2
0.0315
0.0394
0.80
1.00
b
0.0059
0.00118
0.15
0.30
c
0.0035
0.0071
0.09
0.18
D
0.0709
0.0866
1.80
2.20
E
0.0453
0.0531
1.15
1.35
E1
0.0709
0.0945
1.80
2.40
e
0.0255 BSC
0.65BSC
L
0.0102
0.0181
0.26
0.46
L1
0.0108
0.0226
0.275
0.575
For current Tape and Reel information,
download the PDF file from:
www.catsemi.com/documents/tapeandreel.pdf
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.
Doc. No. 3004, Rev. X
10
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT803, CAT809, CAT810
Example of Ordering Information (2) (3) (4)
Prefix
Device #
CAT
Suffix
809
S
Company ID
Device Type
803: Open-Drain / Active Low Output
809: Push-Pull / Active Low Output
810: Push-Pull / Active High Output
TBI
Trip Level
L: 4.63V
M: 4.38V
J: 4.00V
T: 3.08V
S: 2.93V
R: 2.63V
Z: 2.32V
–
Package Type(1)
TBI: SOT-23 Green
SDI: SC70 Green
G
T10
T: Tape & Reel
3: 3000/Reel
10: 10000/Reel
Lead Finish
Blank: Matte-Tin
G: NiPdAu
Notes:
(1) 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-GT10 (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.
Top Marking
Device(1)
SOT-23
SOT-23 RoHS
PbSn Finish(2) Matte Finish(2)
SOT-23 RoHS
NiPdAu
SC70
SC70 RoHS
Finish(2)(3)
PbSn Finish(2) 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__
CAT810x
PCYM
PDYM
NSYM
PC__
PD__
NS__
Notes:
(1) 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.
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc No. 3004, Rev. X
CAT803, CAT809, CAT810
Ordering Part Number
CAT803LSDI
CAT803LSDI-G
CAT809LSDI
CAT809LSDI-G
CAT810LSDI
CAT810LSDI-G
CAT803MSDI
CAT803MSDI-G
CAT809MSDI
CAT809MSDI-G
CAT810MSDI
CAT810MSDI-G
CAT803JSDI
CAT803JSDI-G
CAT809JSDI
CAT809JSDI-G
CAT810JSDI
CAT810JSDI-G
CAT803TSDI
CAT803TSDI-G
CAT809TSDI
CAT809TSDI-G
CAT810TSDI
CAT810TSDI-G
CAT803SSDI
CAT803SSDI-G
CAT809SSDI
CAT809SSDI-G
CAT810SSDI
CAT810SSDI-G
CAT803RSDI
CAT803RSDI-G
CAT809RSDI
CAT809RSDI-G
CAT810RSDI
CAT810RSDI-G
CAT803ZSDI
CAT803ZSDI-G
CAT809ZSDI
CAT809ZSDI-G
CAT810ZSDI
CAT810ZSDI-G
CAT803LTBI
CAT803LTBI-G
CAT809LTBI
CAT809LTBI-G
CAT810LTBI
CAT810LTBI-G
CAT803MTBI
CAT803MTBI-G
CAT809MTBI
CAT809MTBI-G
CAT810MTBI
CAT810MTBI-G
CAT803JTBI
CAT803JTBI-G
CAT809JTBI
CAT809JTBI-G
CAT810JTBI
CAT810JTBI-G
CAT803TTBI
CAT803TTBI-G
CAT809TTBI
CAT809TTBI-G
CAT810TTBI
CAT810TTBI-G
CAT803STBI
CAT803STBI-G
CAT809STBI
CAT809STBI-G
CAT810STBI
CAT810STBI-G
CAT803RTBI
CAT803RTBI-G
CAT809RTBI
CAT809RTBI-G
CAT810RTBI
CAT810RTBI-G
CAT803ZTBI
CAT803ZTBI-G
CAT809ZTBI
CAT809ZTBI-G
CAT810ZTBI
CAT810ZTBI-G
Doc. No. 3004, Rev. X
12
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT803, CAT809, CAT810
Revision History
Date
Rev.
Reason
10/29/2003
N
Updated VCC Transient Response text and Figure 2
10/30/2003
O
Updated Power Up Reset Timeout vs. Temperature curve
3/10/2004
P
Corrected temperature range
Updated Description
Updated Ordering Information
Updated Absolute Maximum Ratings
Updated Electrical Characteristics
03/23/2004
Q
Updated Description
Updated Ordering Information
Updated Absolute Maximum Ratings
Updated Electrical Characteristics
Updated Typical Operating Characteristics
Updated Package Information
3/25/2004
R
Changed Preliminary designation to Final
Updated Max Reset Active Timeout Period in Electrical Characteristics
Updated package drawings
5/10/2004
S
Updated top marking table
12/28/2005
T
Updated Features
Updated Ordering Information
Updated Top Marking
02/17/2006
Q
Updated Typical Operating Characteristics
08/10/2006
U
Updated Features
Updated Description
Updated Max Reset Active Timeout Period in Electrical Characteristics
Updated Figure 1
Updated Package Information
Correct Revision Number
10/17/2006
V
Updated Top Marking
Updated Detailed Description
Adding CAT803
02/12/2007
W
Updated Electrical Characteristics
Updated Figure 1
Updated Ordering Information
03/20/2007
X
Updated Detailed Descriptions
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
13
Doc No. 3004, Rev. X
Copyrights, Trademarks and Patents
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
DPP ™
AE2 ™
MiniPot™
Quad Mode™
Beyond Memory™
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products.
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ITS 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.
Catalyst Semiconductor 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 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
2975 Stender Way
Santa Clara, CA 95054
Phone: 408.542.1000
Fax:
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www.catsemi.com
Document No: 3004
Revision:
X
Issue date:
03.20.07
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