CAT853MTBI-G [ONSEMI]
3-Pin Microprocessor Power Supply Supervisors; 3引脚微处理器电源监控
| 型号： | CAT853MTBI-G |
| 厂家： | 
ONSEMI |
| 描述： | 3-Pin Microprocessor Power Supply Supervisors |
| 文件： | 总10页 (文件大小：203K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CAT853, CAT863
CATCAT859, CAT869
3-Pin Microprocessor Power Supply Supervisors
DESCRIPTION
FEATURES
The CAT853, CAT863, CAT859, and CAT869 are
supervisory circuits that monitor power supplies in
digital systems.
Precision monitoring of +3.3 V (-5%, -10%), 5 V
(-10% Power Supplies)
Active low reset output
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. Industry
standard threshold levels are offered to support
+3.3 V or 5.0 V systems.
Reset valid down to VCC = 1.0 V
6 µA power supply current
Power supply transient immunity
Industrial temperature range: -40ºC to +85ºC
RoHS-compliant SOT-23 package
¯¯¯¯¯¯
The CAT859 and CAT869 feature a RESET push-pull
output (active low) for the two pinout options.
APPLICATIONS
Computers
The CAT853 and CAT863 feature an open drain
¯¯¯¯¯¯
RESET output (active low). Both require a pull-up
Servers
resistor on the RESET output.
Laptops
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.
Cable modems
Wireless communications
Embedded control systems
White goods
Power meters
For Ordering Information details, see page 9.
Intelligent instruments
PDAs and handheld equipment
PIN CONFIGURATION
THRESHOLD SUFFIX SELECTOR
Nominal Threshold
Voltage
Threshold Suffix
Designation
SOT-23 3-Lead
SOT-23 3-Lead
4.38 V
4.20 V
3.08 V
2.93 V
2.4 V
M
F
1
1
RESET
GND
RESET
CAT853
CAT859
CAT863
CAT869
3
3
GND
V
CC
T
V
2
2
CC
S
C
PIN DESCRIPTION
Pin Name Function
¯¯¯¯¯¯
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
¯¯¯¯¯¯
RESET
GND
VCC
Ground
Power supply voltage that is monitored
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
1
Doc. No. MD-3026, Rev. G
CAT853, CAT863, CAT859, CAT869
BLOCK DIAGRAMS
V
CC
V
CC
TOLERANCE
BIAS
+
–
V
CC
RESET
DIGITAL
DELAY
VOLTAGE
REFERENCE
CAT853
CAT863
GND
V
CC
V
CC
TOLERANCE
BIAS
+
–
V
CC
DIGITAL
DELAY
RESET
VOLTAGE
REFERENCE
CAT859
CAT869
GND
Doc. No. MD-3026, Rev. G
2
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
CAT853, CAT863, CAT859, CAT869
ABSOLUTE MAXIMUM RATINGS(1)
Parameters
Ratings
-0.3 to +6.0
20
Units
V
Any pin with respect to ground
Input Current, VCC
mA
mA
V/µs
¯¯¯¯¯¯
20
Output Current, RESET
Rate of Rise, VCC
100
Continuous Power Dissipation
320
mW
Derate 4mW/ºC above 70ºC (SOT23)
Operating Temperature Range
Storage Temperature Range
-40 to +85
-65 to +105
300
ºC
ºC
ºC
Lead Soldering Temperature (10 sec)
ELECTRICAL CHARACTERISTICS
VCC = Full range, TA = -40ºC to +85ºC unless otherwise noted. Typical values at TA = +25ºC and VCC = 3.3 V for
the C, S, T versions, VCC = 5 V for the M version.
(2)
Symbol Parameter
Conditions
Min
1.0
1.2
Typ
Max
5.5
Units
V
TA = 0ºC to +70ºC
VCC Range
TA = -40ºC to +85ºC
5.5
ICC
Supply Current
TA = -40ºC to +85ºC VCC < 3.6 V, C, S, T
6
15
µA
TA = +25ºC
M Threshold
4.31
4.25
4.14
4.08
3.04
3.00
2.89
2.85
2.35
2.30
4.38
4.45
4.50
4.26
4.31
3.11
3.15
2.96
3.00
2.45
2.50
TA = -40ºC to +85ºC
TA = +25ºC
F Threshold
4.20
3.08
2.93
2.40
TA = -40ºC to +85ºC
TA = +25ºC
T Threshold
Reset Threshold
Voltage
VTH
V
TA = -40ºC to +85ºC
TA = +25ºC
S Threshold
TA = -40ºC to +85ºC
TA = +25ºC
C Threshold
TA = -40ºC to +85ºC
Reset Threshold
Tempco
30
20
ppm/ºC
VCC to Reset
VCC = VTH to (VTH - 100 mV)
TA = -40ºC to +85ºC
µs
ms
V
Delay
Reset Active
Timeout Period
140
240
460
VCC = VTH min, ISINK = 1.2 mA
VCC > 1.0 V, ISINK = 50 µA
0.4
0.3
¯¯¯¯¯¯
RESET Output
VOL
VOH
Voltage Low
¯¯¯¯¯¯
Voltage High
V
CC = VTH max, ISOURCE = -500 µA
RESET Output
0.8 VCC
V
(for CAT859/869 only)
Notes:
(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.
(2) Production testing done at TA = +25ºC; limits over temperature guaranteed by design only.
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
3
Doc. No. MD-3026, Rev. G
CAT853, CAT863, CAT859, CAT869
TYPICAL ELECTRICAL OPERATING CHARACTERISTICS
VCC = Full range, TA = -40ºC to +85ºC unless otherwise noted. Typical values at TA = +25ºC and VCC = 3.3 V for
the C, S, T versions, VCC = 5 V for the M version.
POWER-UP RESET TIMEOUT
VS. TEMPERATURE
SUPPLY CURRENT VS. TEMPERATURE
(NO LOAD)
260
240
220
200
180
160
12
10
8
V = 5.5 V
CC
V
CC
= 5 V
6
V
= 3.6 V
CC
4
V
CC
= 2.5 V
100
2
0
-50
0
50
150
-50
0
50
100
150
TEMPERATURE (°C)
TEMPERATURE (°C)
POWER-DOWN RESET DELAY
VS. TEMPERATURE
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. MD-3026 Rev. G
4
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
CAT853, CAT863, CAT859, CAT869
DETAILED DESCRIPTION
RESET TIMING
The reset signal is asserted low for the CAT853,
CAT863, CAT859, and CAT869 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.
Threshold
Voltage
Power
Supply
Voltage
5 V
0 V
Reset Timeout Period
140 ms
minimum
5 V
0 V
RESET
Figure 1. Reset Timing Diagram
VCC TRANSIENT RESPONSE
The CAT853, CAT863, CAT859, and CAT869 protect
µPs against brownout failure. Short duration
transients of 4 µs or less and 100 mV amplitude
typically do not cause a false RESET.
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 0.5 V above the
threshold and drops below it by the amplitude of the
overdrive voltage (VTH - VCC).
Figure 2 shows the maximum pulse duration of
negative-going VCC transients that do not cause a
T
AMB
= 25ºC
“C” THRESHOLD
“M” THRESHOLD
RESET OVERDRIVE V
- V [mV]
CC
TH
Figure 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
5
Doc. No. MD-3026, Rev. G
CAT853, CAT863, CAT859, CAT869
VALID RESET WITH VCC UNDER 1.0 V
¯¯¯¯¯¯
To ensure that the CAT859 and CAT869 RESET pin
is in a known state when VCC is under 1.0 V, a > 10 kΩ
¯¯¯¯¯¯
pull-down resistor between RESET pin and GND is
recommended.
Power
Supply
V
CC
CAT8x9
RESET
GND
¯¯¯¯¯¯
Figure 3. RESET Valid with VCC Under 1.0 V
BI-DIRECTIONAL RESET PIN INTERFACING
The CAT859 and CAT869 can interface with µP/µC
bi-directional reset pins by connecting a 4.7 kꢀ
resistor in series with the CAT859 and CAT869 reset
output and the µP/µC bi-directional reset pin.
BUF
Buffered
RESET
Power
Supply
V
CC
V
CC
CAT8x9
RESET
GND
µP
(For example:
68HC11)
RESET
INPUT
GND
Bi-directional
I/O Pin
Figure 4. Bi-directional Reset Pin Interfacing
Doc. No. MD-3026 Rev. G
6
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
CAT853, CAT863, CAT859, CAT869
¯¯¯¯¯¯
CAT853 AND CAT863 OPEN-DRAIN RESET
APPLICATION
The CAT853 and CAT863 features an open-drain
RESET output and therefore need a pull-up resistor
on the output for proper operation, as shown on
Figure 5. 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 CAT8x3
VCC pin. The value of the pull-up resistor is not critical
in most applications, typical values being between
5 kꢀ and 10 kꢀ.
Power
Supply
VCC
5kꢀ
VCC
CAT8x3
µP
RESET
GND
RESET
INPUT
GND
Figure 5. Typical CAT8x3 Open-Drain Circuit Configuration
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
7
Doc. No. MD-3026, Rev. G
CAT853, CAT863, CAT859, CAT869
PACKAGE OUTLINE DRAWING
SOT-23 3-LEAD (TB) (1)(2)
SYMBOL
MIN
0.89
0.013
0.37
0.085
2.80
2.10
1.20
NOM
MAX
1.12
0.10
0.50
0.18
3.04
2.64
1.40
D
A
A1
b
3
c
D
E1
E
E
E1
e
0.95 BSC
1.90 BSC
0.400 REF
0.540 REF
1
2
e1
L
e
e1
L1
θ
0º
8º
TOP VIEW
A
θ
b
L1
L
c
A1
SIDE VIEW
END VIEW
Notes:
(1) All dimensions in millimeters. Angles in degrees.
(2) Complies with JEDEC standard TO-236.
Doc. No. MD-3026 Rev. G
8
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
CAT853, CAT863, CAT859, CAT869
EXAMPLE OF ORDERING INFORMATION (1) (2) (3)
Prefix
Device #
Suffix
CAT
859
S
TB
I
-G
T10
Lead Finish
G:NiPdAu
Tape & Reel
T: Tape & Reel
3: 3,000/Reel
Threshold Level
Company ID
M: 4.38 V
F: 4.20 V
T: 3.08 V
S: 2.93 V
C: 2.40 V
Device Type
10: 10,000/Reel
853: Open Drain / Active Low Output
863: Open Drain / Active Low Output
859: Push-Pull / Active Low Output
869: Push-Pull / Active Low Output
Temperature Range
I = Industrial (-40ºC to 85ºC)
Package
TB: SOT-23 (1)
TOP MARKING
SOT-23 RoHS
SOT-23 RoHS
Part and Threshold
Part and Threshold
NiPdAu Finish (4) (5)
NiPdAu Finish (4) (5)
CAT859C
CAT859T
CAT859S
CAT859F
CAT859M
CAT869T
CAT869S
CAT869M
CAT853C
CAT853T
CAT853S
CAT853F
CAT853M
CAT863T
CAT863S
CAT863M
RSYM
RUYM
RVYM
RTYM
ORDERING PART NUMBER (6)
CAT859CTBI-G
CAT859TTBI-G
CAT859STBI-G
CAT859FTBI-G
CAT859MTBI-G
CAT869TTBI-G
CAT853CTBI-G
CAT863TTBI-G
CAT863STBI-G
CAT863MTBI-G
CAT869STBI-G
CAT869MTBI-G
CAT853TTBI-G
CAT853STBI-G
CAT853FTBI-G
CAT853MTBI-G
Notes:
(1) All packages are RoHS-compliant (Lead-free, Halogen-free).
(2) The device used in the example above is a CAT859STBI-GT10 (Push-Pull / Active Low Output, trip level of 2.85 V to 3.00 V NiPdAu,
Tape and Reel).
(3) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office.
(4) The “YM” in the SOT-23 package marking indicates the Year and Month of production.
(5) All NiPdAu devices will be marked to indicate product type. Threshold and full part numbers will be provided on box and reel labels as well
as all Shipping documents.
(6) For special threshold and package options, contact factory.
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
9
Doc. No. MD-3026, Rev. G
CAT853, CAT863, CAT859, CAT869
REVISION HISTORY
Date
Rev. Description
11-Oct-06
A
B
Initial Issue CAT859, CAT869
Added CAT853, CAT863
Update Example of Ordering Information
Update Top Marking
04-May-07
Update Ordering Part Number
Add Threshold Level - C: 2.40 V
Update Package Outline Drawing
Add MD- to document number
17-Jan-07
C
30-Jan-08
05-Nov-08
04-Mar-09
08-Apr-09
D
E
F
Added Block Diagrams
Change logo and fine print to ON Semiconductor
Convert to MS Word format
G
Add Nominal Threshold Voltage 4.20 “F”
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: 81-3-5773-3850
ON Semiconductor Website: www.onsemi.com
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
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
Doc. No. MD-3026 Rev. G
10
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
相关型号：
CAT853MTBI-GT10
Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, PDSO3, ROHS COMPLIANT, TO-236, SOT-23, 3 PIN
CATALYST
CAT853MTBI-GT10
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, HALOGEN FREE AND ROHS COMPLIANT, TO-236, SOT-23, 3 PIN
ONSEMI
CAT853STBI-GT10
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, HALOGEN FREE AND ROHS COMPLIANT, TO-236, SOT-23, 3 PIN
ONSEMI
©2020 ICPDF网 联系我们和版权申明