adm809-5lartz-rl7 Analog Devices, Inc., adm809-5lartz-rl7 Datasheet

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adm809-5lartz-rl7

Manufacturer Part Number
adm809-5lartz-rl7
Description
Microprocessor Supervisory Circuit In 3-lead Sc70, Active-low Open-drain Output
Manufacturer
Analog Devices, Inc.
Datasheet
FEATURES
Specified over temperature
Low power consumption (17 μA)
Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options
Reset assertion down to 1 V V
140 ms minimum power-on reset
SC70 and SOT-23 packages
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Automotive systems
GENERAL DESCRIPTION
The ADM803/ADM809/ADM810 supervisory circuits monitor
the power supply voltage in microprocessor systems. They
provide a reset output during power-up, power-down, and
brownout conditions. On power-up, an internal timer holds
reset asserted for 240 ms. This holds the microprocessor in a
reset state until conditions have stabilized. The RESET output
remains operational with V
ADM809 provide an active low reset signal ( RESET ), while the
ADM810 provides an active high signal (RESET) output. The
ADM809 and ADM810 have push-pull outputs, whereas the
ADM803 has an open-drain output, which requires an external
pull-up resistor.
Rev. G
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. 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 owners.
Open-drain RESET output (ADM803)
Push-pull RESET output (ADM809)
Push-pull RESET output (ADM810)
CC
as low as 1 V. The ADM803 and
CC
Microprocessor Supervisory Circuits
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Seven reset threshold voltage options are available, suitable for
monitoring a variety of supply voltages (see Table 2).
The reset comparator features built-in glitch immunity, making
it immune to fast transients on V
The ADM803/ADM809/ADM810 consume only 17 μA,
making them suitable for low power, portable equipment. The
ADM803 is available in a 3-lead SC70; the ADM809/ADM810
are available in 3-lead SOT-23 and SC70 packages.
V
CC
V
V
CC
CC
in 3-Lead SC70 and SOT-23
ADM803/ADM809
ADM803/ADM809/ADM810
ADM809/ADM810
V
V
FUNCTIONAL BLOCK DIAGRAM
REF
REF
ADM803
GND
V
CC
RESET
©2006 Analog Devices, Inc. All rights reserved.
*ADM803 ONLY
GND
GND
Figure 1.
GENERATOR
GENERATOR
RESET
RESET
240ms
240ms
*R
CC
PULL-UP
.
RESET
INPUT
MICROPROCESSOR
www.analog.com
SYSTEM
GND
V
RESET
(RESET)
RESET
CC

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adm809-5lartz-rl7 Summary of contents

Page 1

... V as low The ADM803 and CC ADM809 provide an active low reset signal ( RESET ), while the ADM810 provides an active high signal (RESET) output. The ADM809 and ADM810 have push-pull outputs, whereas the ADM803 has an open-drain output, which requires an external pull-up resistor ...

Page 2

... ADM803/ADM809/ADM810 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 REVISION HISTORY 9/06—Rev Rev. G Updated Outline Dimensions ......................................................... 9 Changes to Ordering Guide ............................................................ 9 6/05—Rev Rev. F. Changes to Ordering Guide ............................................................ 4 Updated Outline Dimensions ......................................................... 9 2/05—Rev Rev. E. ...

Page 3

... = −40°C to +125°C = 25°C = −40°C to +85°C = −40°C to +125°C = 25°C (ADM809/ADM810 only) = −40°C to +85°C (ADM809/ADM810 only) = −40°C to +125°C (ADM809/ADM810 only) = 25°C = −40°C to +85°C = −40°C to +125°C = 25°C = −40°C to +85°C = − ...

Page 4

... ADM8_Z −0 +6.0 V 100 V/μs 146°C/W 270°C 300°C 215°C RESET 220°C −65°C to +150°C Rev Page Threshold (V) 4.63 4.38 4.00 ADM809/ADM810 only) 3.08 2.93 2.63 2. REF REF REF RESET TIME = 240ms TYP V = RESET VOLTAGE THRESHOLD REF Figure 2 ...

Page 5

... PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic 1 GND 2 RESET (ADM810) 2 RESET (ADM803/ADM809 GND 1 ADM803/ ADM809/ ADM810 3 TOP VIEW (Not to Scale) RESET, RESET 2 Figure 3. Pin Configuration Description Ground Reference for All Signals Active Low Logic Output. RESET remains high while V high for 240 ms (typ) after V rises above the reset threshold ...

Page 6

... CH1 Rev Page –40 – TEMPERATURE (°C) –40 – TEMPERATURE (°C) SUPPLY VOLTAGE 5V p-p T RESET OUTPUT VOLTAGE ADM809T ADM809R T 2.00V CH2 2.00V M 200ms CH1 Figure 9. RESET Output Voltage vs. Supply Voltage 2.00V ...

Page 7

... ADM8_L/M/J 100 ADM8_R/S/T 100 RESET COMPARATOR OVERDRIVE, V Figure 10. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive 1000 – V (mV Rev Page ADM803/ADM809/ADM810 ...

Page 8

... ENSURING A VALID RESET OUTPUT DOWN When V falls below 0.8 V, the ADM803/ADM809 RESET no CC longer sinks current. A high impedance CMOS logic input connected to RESET may, therefore, drift to undetermined logic levels. To eliminate this problem, a 100 kΩ resistor should be connected from RESET to ground. ...

Page 9

... M6M −40°C to +125°C M06 −40°C to +125°C M06 −40°C to +125°C M50 −40°C to +125°C M50 −40°C to +125°C M05 Rev Page ADM803/ADM809/ADM810 0.20 0.08 0.30 0.20 0.10 Package 1 Quantity Description 10k 3-Lead SC70 3k 3-Lead SC70 ...

Page 10

... ADM809LARTZ-REEL 4.63 ADM809LARTZ-REEL7 2 4.63 ADM809MAKS-REEL 4.38 ADM809MAKS-REEL7 4.38 2 ADM809MAKSZ-REEL 4.38 2 ADM809MAKSZ-REEL7 4.38 ADM809MART-REEL 4.38 ADM809MART-REEL7 4.38 2 ADM809MARTZ-REEL 4.38 2 ADM809MARTZ-REEL7 4.38 ADM809RAKS-REEL 2.63 ADM809RAKS-REEL7 2.63 2 ADM809RAKSZ-REEL 2.63 2 ADM809RAKSZ-REEL7 2.63 ADM809RART-REEL 2.63 ADM809RART-REEL7 2.63 2 ADM809RARTZ-REEL 2.63 2 ADM809RARTZ-REEL7 2.63 ADM809SAKS-REEL 2.93 ADM809SAKS-REEL7 2.93 2 ADM809SAKSZ-REEL 2.93 ADM809SAKSZ-REEL7 2 2.93 ADM809SART-REEL 2.93 ADM809SART-REEL7 2.93 2 ADM809SARTZ-REEL 2.93 2 ADM809SARTZ-REEL7 2.93 ADM809TAKS-REEL7 3.08 2 ADM809TAKSZ-REEL 3.08 2 ADM809TAKSZ-REEL7 3.08 ADM809TART-REEL 3.08 ADM809TART-REEL7 3.08 2 ADM809TARTZ-REEL 3.08 ADM809TARTZ-REEL7 2 3.08 Temperature 1 Range Branding −40°C to +125°C M05 − ...

Page 11

... Threshold Model Reset (V) ADM809ZAKS-REEL 2.32 ADM809ZAKS-REEL7 2.32 2 ADM809ZAKSZ-REEL 2.32 2 ADM809ZAKSZ-REEL7 2.32 ADM809ZART-REEL 2.32 ADM809ZART-REEL7 2.32 2 ADM809ZARTZ-REEL 2.32 ADM809ZARTZ-REEL7 2 2.32 ADM810JAKS-REEL 4.00 ADM810JAKS-REEL7 4.00 2 ADM810JAKSZ-REEL 4.00 2 ADM810JAKSZ-REEL7 4.00 ADM810JART-REEL7 4.00 2 ADM810JARTZ-REEL 4.00 2 ADM810JARTZ-REEL7 4.00 ADM810LAKS-REEL7 4.63 2 ADM810LAKSZ-REEL 4.63 2 ADM810LAKSZ-REEL7 4.63 ADM810LART-REEL 4.63 ADM810LART-REEL7 4.63 ADM810LARTZ-REEL 2 4.63 2 ADM810LARTZ-REEL7 4.63 ADM810MAKS-REEL7 4.38 2 ADM810MAKSZ-REEL 4.38 2 ADM810MAKSZ-REEL7 4.38 ADM810MART-REEL7 4.38 2 ADM810MARTZ-REEL 4.38 2 ADM810MARTZ-REEL7 4.38 ADM810RAKS-REEL 2.63 ADM810RAKS-REEL7 2.63 2 ADM810RAKSZ-REEL 2.63 2 ADM810RAKSZ-REEL7 2.63 ADM810RART-REEL7 2.63 2 ADM810RARTZ-REEL 2.63 2 ADM810RARTZ-REEL7 2.63 ADM810SAKS-REEL7 2.93 2 ADM810SAKSZ-REEL 2 ...

Page 12

... ADM803/ADM809/ADM810 Threshold Model Reset (V) 2 ADM810ZAKSZ-REEL7 2.32 ADM810ZART-REEL 2.32 ADM810ZART-REEL7 2.32 2 ADM810ZARTZ-REEL 2.32 2 ADM810ZARTZ-REEL7 2. Date code, may be top or bottom marked Pb-free part. 3 Pb-free part has XX branded on the bottom of the device. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...

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