ADM1815-R23ART-REEL [ADI]
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, TO-236AB, SOT-23, 3 PIN;
| 型号： | ADM1815-R23ART-REEL |
| 厂家： | 
ADI |
| 描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, TO-236AB, SOT-23, 3 PIN 光电二极管 |
| 文件： | 总8页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Microprocessor Reset Circuits
ADM1810–ADM1813/ADM1815–ADM1818
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Reliable Low Cost Voltage Monitor with Reset Output
Suitable for Monitoring 2.5 V, 3 V, 3.3 V, and 5 V Power
Supply Voltages
ADM1810/ADM1815
V
CC
Reset Threshold Levels: 4.62 V, 4.35 V, 3.06 V, 2.88 V,
2.55 V, 2.31 V, and 2.18 V (Typ)
Active High and Low Push-Pull Output Choices
(ADM1810, ADM1812, ADM1815, and ADM1817)
Open-Drain Output Choices (ADM1811, ADM1813,
ADM1816, and ADM1818)
RST
V
CC
TOLERANCE
BIAS
150ms
DELAY
TC
GND
REFERENCE
Can Be Used with a Manual Push-Button to Generate
a Reset (ADM1813, ADM1818)
Initialize Microprocessor Systems with Added Safety
Available in a 3-Lead SOT-23 Package
ADM1811/ADM1816
V
CC
5.5k⍀
APPLICATIONS
RST
Microprocessor Systems
Computers
Controllers
V
CC
TOLERANCE
BIAS
150ms
DELAY
Intelligent Instruments
Automotive Systems
TC
GND
REFERENCE
GENERAL DESCRIPTION
ADM1812/ADM1817
The ADM181x range of voltage monitoring circuits can be used
in any application where an electronic system needs to be reset
when a voltage increases above or below a predetermined value.
V
CC
RST
V
CC
Because of the reset delay time incorporated into the ADM181x
series, these devices can provide a safe startup for electronic
systems. Before a system initializes, the power supply must stabi-
lize. Using the ADM181x series ensures that there are typically
150 ms for the power supply to stabilize before the system is reset
and safe system initialization begins.
TOLERANCE
BIAS
150ms
DELAY
TC
GND
REFERENCE
The ADM181x series of microprocessor reset circuits are avail-
able in low cost, space-saving SOT-23 packages.
ADM1813/ADM1818
V
CC
5.5k⍀
RESET
MONITOR
RST
V
CC
TOLERANCE
BIAS
150ms
DELAY
TC
GND
REFERENCE
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.com
© 2003 Analog Devices, Inc. All rights reserved.
ADM1810–ADM1813/ADM1815–ADM1818–SPECIFICATIONS
(VCC = Full Operating Range, TA = –40؇C to +105؇C, unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
Conditions/Note
SUPPLY
Voltage
1
1.2
5.5
5.5
16
V
V
µA
µA
TA = 0˚C to 105˚C
TA = –40˚C to +105˚C
VCC = 5.5 V, VCC > VTH, No Load
VCC = 3.6 V, VCC > VTH, No Load
Current
9
4
10
OUTPUT CURRENT
RST Output Source Current
350
350
µA
µA
mA
VCC ≥ VTH (Max), Reset Not
Asserted (ADM1810/ADM1815)
VCC ≤ VTH (Min), Reset Asserted
(ADM1812/ADM1817)
VCC ≥ 2.7 V, Reset Asserted,
VOUT = 0.4 V, (ADM1810/
ADM1811/ADM1813/ADM1815/
ADM1816/ADM1818)
VCC ≥ 2.7 V, Reset Not Asserted,
VOUT = 0.4 V (ADM1812/ADM1817)
RST Output Source Current
RST Output Sink Current
8
8
RST Output Sink Current
OUTPUT VOLTAGE
mA
V
V
CC – 0.5 VCC – 0.1
(ADM1810/ADM1812/ADM1815/
ADM1817) @ 0 µA to 500 µA
V
CC TRIP POINT
ADM1810-5, ADM1811-5, ADM1812-5,
ADM1813-5
4.50
4.25
4.62
4.35
4.75
4.49
V
V
ADM1810-10, ADM1811-10,
ADM1812-10, ADM1813-10
ADM1815-5, ADM1816-5, ADM1817-5
ADM1815-10, ADM1816-10
ADM1817-10, ADM1818-10
ADM1815-20, ADM1816-20
ADM1817-20, ADM1818-20
ADM1815-R23, ADM1816-R23
ADM1817-R23
2.98
2.80
3.06
2.88
3.15
2.97
V
V
2.47
2.25
2.12
2.55
2.31
2.18
2.64
2.37
2.25
V
V
V
ADM1815-R22, ADM1816-R22
ADM1817-R22
INTERNAL PULL-UP RESISTOR
ADM1811/ADM1816
ADM1813/ADM1818
3.5
3.1
5.5
5.5
7.5
7.5
kΩ
kΩ
OUTPUT CAPACTANCE
RESET ACTIVE TIME
10
pF
ms
100
150
250
V
CC DETECT TO RESET
Falling
5
10
µs
µs
(ADM1810/ADM1811/ADM1812/
ADM1813)
(ADM1815/ADM1816/ADM1817/
ADM1818)
7
15
Rising
100
1
150
250
ms
µs
tR = 5 µs
PUSH-BUTTON DETECT TO RST
(ADM1813/ADM1818)
(ADM1813/ADM1818)
PUSH-BUTTON RESET
100
150
250
ms
Specifications subject to change without notice.
–2–
REV. B
ADM1810–ADM1813/ADM1815–ADM1818
ABSOLUTE MAXIMUM RATINGS*
PIN CONFIGURATION
(TA = 25∞C, unless otherwise noted.)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6.0 V
Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Operating Temperature Range . . . . . . . . . . –40∞C to +105∞C
1
RST/RST
ADM181x
GND
3
TOP VIEW
(Not to Scale)
JA Thermal Impedance, SOT-23 . . . . . . . . . . . . . . . 270∞C/W
V
2
CC
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300∞C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215∞C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220∞C
Storage Temperature Range . . . . . . . . . . . . –65∞C to +150∞C
PIN FUNCTION DESCRIPTIONS
Pin Mnemonic
Function
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods of time may affect device reliability.
1
RST/RST
Reset Output. RST/RST remains active
while VCC is below the reset threshold
and remains active for 150 ms (typ) after
VCC rises above the reset threshold.
2
3
VCC
Supply voltage being monitored.
GND
0 V. Ground reference for all signals.
ORDERING GUIDE
Brand
Trip
Point
Package
Option
Trip
Point
Package
Option
Brand
Info.
Model*
Info.
Model*
ADM1810-5ART-REEL
ADM1810-5ART-RL7
ADM1810-10ART-REEL
ADM1810-10ART-RL7
ADM1811-5ART-REEL
ADM1811-5ART-RL7
ADM1811-10ART-REEL
ADM1811-10ART-RL7
ADM1812-5ART-REEL
ADM1812-5ART-RL7
ADM1812-10ART-REEL
ADM1812-10ART-RL7
ADM1813-5ART-REEL
ADM1813-5ART-RL7
ADM1813-10ART-REEL
ADM1813-10ART-RL7
ADM1815-5ART-REEL
ADM1815-5ART-RL7
ADM1815-10ART-REEL
ADM1815-10ART-RL7
ADM1815-20ART-REEL
ADM1815-20ART-RL7
4.62 V RT-3 (SOT-23) MZV
4.62 V RT-3 (SOT-23) MZV
4.35 V RT-3 (SOT-23) MZT
4.35 V RT-3 (SOT-23) MZT
4.62 V RT-3 (SOT-23) M1V
4.62 V RT-3 (SOT-23) M1V
4.35 V RT-3 (SOT-23) M1T
4.35 V RT-3 (SOT-23) M1T
4.62 V RT-3 (SOT-23) MTV
4.62 V RT-3 (SOT-23) MTV
4.35 V RT-3 (SOT-23) MTT
4.35 V RT-3 (SOT-23) MTT
4.62 V RT-3 (SOT-23) M3V
4.62 V RT-3 (SOT-23) M3V
4.35 V RT-3 (SOT-23) M3T
4.35 V RT-3 (SOT-23) M3T
3.06 V RT-3 (SOT-23) M5K
3.06 V RT-3 (SOT-23) M5K
2.88 V RT-3 (SOT-23) M5E
2.88 V RT-3 (SOT-23) M5E
2.55 V RT-3 (SOT-23) M5A
2.55 V RT-3 (SOT-23) M5A
ADM1815-R22ART-RL7
ADM1816-5ART-REEL
ADM1816-5ART-RL7
ADM1816-10ART-REEL
ADM1816-10ART-RL7
ADM1816-20ART-REEL
ADM1816-20ART-RL7
ADM1816-R23ART-REEL 2.31 V RT-3 (SOT-23) M6C
ADM1816-R23ART-RL7 2.31 V RT-3 (SOT-23) M6C
ADM1816-R22ART-REEL 2.18 V RT-3 (SOT-23) M6B
ADM1816-R22ART-RL7
ADM1817-5ART-REEL
ADM1817-5ART-RL7
ADM1817-10ART-REEL
ADM1817-10ART-RL7
ADM1817-20ART-REEL
ADM1817-20ART-RL7
ADM1817-R23ART-REEL 2.31 V RT-3 (SOT-23) M7C
ADM1817-R23ART-RL7 2.31 V RT-3 (SOT-23) M7C
ADM1817-R22ART-REEL 2.18 V RT-3 (SOT-23) M7B
2.18 V RT-3 (SOT-23) M5B
3.06 V RT-3 (SOT-23) M6K
3.06 V RT-3 (SOT-23) M6K
2.88 V RT-3 (SOT-23) M6E
2.88 V RT-3 (SOT-23) M6E
2.55 V RT-3 (SOT-23) M6A
2.55 V RT-3 (SOT-23) M6A
2.18 V RT-3 (SOT-23) M6B
3.06 V RT-3 (SOT-23) M7K
3.06 V RT-3 (SOT-23) M7K
2.88 V RT-3 (SOT-23) M7E
2.88 V RT-3 (SOT-23) M7E
2.55 V RT-3 (SOT-23) M7A
2.55 V RT-3 (SOT-23) M7A
ADM1817-R22ART-RL7
ADM1818-10ART-REEL
ADM1818-10ART-RL7
ADM1818-20ART-REEL
ADM1818-20ART-RL7
2.18 V RT-3 (SOT-23) M7B
2.88 V RT-3 (SOT-23) M8E
2.88 V RT-3 (SOT-23) M8E
2.55 V RT-3 (SOT-23) M8A
2.55 V RT-3 (SOT-23) M8A
ADM1815-R23ART-REEL 2.31 V RT-3 (SOT-23) M5C
ADM1815-R23ART-RL7 2.31 V RT-3 (SOT-23) M5C
ADM1815-R22ART-REEL 2.18 V RT-3 (SOT-23) M5B
*Only available in reels.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADM1810–ADM1813/ADM1815–ADM1818 features proprietary ESD protection circuitry,
permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore,
proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
REV. B
–3–
ADM1810–ADM1813/ADM1815–ADM1818–Typical Performance Characteristics
1.011
1.009
1.007
1.005
1.003
1.001
0.999
0.997
0.995
10
I
@V = 5.5V
CC
CC
8
DEVIATION (RISE)
6
I
@V = 3V
CC
CC
4
DEVIATION (FALL)
2
0
–40 –20
0
20
30
50
70
85 100 120
–40 –20
0
20
30
50
70
85
100 120
TEMPERATURE – ؇C
TEMPERATURE – ؇C
TPC 1. Supply Current vs. Temperature
TPC 4. Normalized Reset Threshold vs. Temperature
60
50
900
800
700
600
500
400
300
200
100
0
40
30
20
VOD = 20mV
VOD = 125mV
10
0
VOD = 200mV
50 70 85
TEMPERATURE – ؇C
10
30
40
60
80 100 200 400 600 800 1000
– V – mV
–40 –20
0
20
30
100 120
V
TH
CC
TPC 2. Power-Down Reset Delay vs. Temperature
TPC 5. Maximum Transient Duration without Causing
a Reset Pulse vs. Reset Comparator Overdrive
380
370
360
350
340
330
320
310
300
290
–40 –20
0
20
30
50
70
85
100 120
TEMPERATURE – ؇C
TPC 3. Power-Up Reset Timeout vs. Temperature
–4–
REV. B
ADM1810–ADM1813/ADM1815–ADM1818
V
CC
The ADM1818 range has 2.88 V and 2.55 V (typ) trip point
options that allow the user to monitor 3.3 V and 3 V supplies. For
5 V monitoring requirements, the ADM1813 range has 4.62 V
and 4.35 V (typ) trip point options.
V
TRIP POINT(MAX)
CC
V
TRIP POINT
CC
V
TRIP POINT(MIN)
CC
V
TO RESET
DELAY
CC
RST
ADM1810, ADM1812, ADM1815, AND ADM1817
The ADM1812 is a 5 V supply monitor with an active high push-
pull output and trip point options of 4.62 V and 4.35 V (typ).
The ADM1810 is similar to the ADM1812, except that the
ADM1810 has an active low push-pull output stage.
V
OL
Figure 1. Power-Down Timing Diagram
The ADM1817 is suitable for monitoring 3.3 V, 3 V, and 2.5 V
supplies, with an active high push-pull output and trip-point
options of 3.06 V, 2.88 V, 2.55 V, 2.31 V, and 2.18 V (typ). The
ADM1815 is similar to the ADM1817, except that the ADM1815
has an active low push-pull output stage.
V
TRIP POINT (MAX)
CC
TRIP POINT
V
CC
V
TRIP POINT (MIN)
CC
V
CC
The ADM1810/ADM1812/ADM1815/ADM1817 can be
connected directly to most microprocessor reset inputs without
the need for external components.
RESET ACTIVE TIMEOUT
V
CC
RST
ADM1810/
ADM1812/
ADM1815/
ADM1817
MICRO-
PROCESSOR
Figure 2. Power-Up Timing Diagram
V
ADM1813 AND ADM1818
CC
RST/RST
RESET
The ADM1813 and ADM1818 are low cost voltage monitoring
devices featuring an open-drain output and optional push-
button reset function.
GND
Figure 5. ADM1810/ADM1812/ADM1815/ADM1817
Typical Application
V
CC
ADM1813/
ADM1818
MICRO-
PROCESSOR
ADM1811 AND ADM1816
V
The ADM1811 is a 5 V supply monitor with an active low open-
drain output and trip point options of 4.62 V and 4.35 V (typ).
The ADM1816 also has an active low open-drain output but is
suitable for monitoring lower voltage supplies of 3.3 V, 3 V,
and 2.5 V.
CC
RST
RESET
GND
V
CC
ADM1811/
ADM1816
MICRO-
PROCESSOR
Figure 3. ADM1813/ADM1818 Typical Application
An optional push-button reset switch can be connected between
RST and ground. Pressing this switch will pull the reset output
low. If the push-button reset button pulls the RST output low for
a period greater than 1 ms, then, when the reset button releases
the RST line to float high, the RST line will stay low for a further
150 ms typical.
V
CC
RST
RESET
GND
Figure 6. ADM1811/ADM1816 Typical Application
PUSH-BUTTON TIME
RESET TIMEOUT
VOLTAGE
INPUT HIGH
VOLTAGE
INPUT LOW
Figure 4. Push-Button Reset Timing Diagram
REV. B
–5–
ADM1810–ADM1813/ADM1815–ADM1818
OUTLINE DIMENSIONS
3-Lead Small Outline Transistor Package [SOT-23]
(RT-3)
Dimensions shown in millimeters
3.04
2.90
2.80
1.40
1.30
1.20
3
2.64
2.10
1
2
PIN 1
0.95 BSC
1.90 BSC
1.12
0.89
0.20
0.08
0.10
0.01
0.60
0.50
0.40
0.50
0.30
0.69
REF
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS TO-236AB
–6–
REV. B
ADM1810–ADM1813/ADM1815–ADM1818
Revision History
Location
Page
2/03 Data Sheet changed from REV. A to REV. B.
Edits to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Deleted Table I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Edits to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Edits to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Added Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Edits to ADM1813 AND ADM1818 section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Edits to ADM1810, ADM1812, ADM1815, AND ADM1817 section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Edits to ADM1811 AND ADM1816 section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3/02 Data Sheet changed from REV. O to REV. A.
Addition of Table I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Addition of new text to ADM1813 and ADM1818 section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REV. B
–7–
–8–
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