ADM811SART-REEL-7 Analog Devices Inc, ADM811SART-REEL-7 Datasheet

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ADM811SART-REEL-7

Manufacturer Part Number
ADM811SART-REEL-7
Description
Manufacturer
Analog Devices Inc
Datasheet
a
GENERAL DESCRIPTION
The ADM811/ADM812 are reliable voltage monitoring devices
suitable for use in most voltage monitoring applications.
The ADM811/ADM812 are designed to monitor five different
voltages, each allowing for a 5% or 10% degradation of standard
PSU voltages before a reset occurs. These voltages have been
selected for the effective monitoring of +3 V, +3.3 V and +5 V
supply voltage levels.
Included in this circuit is a debounced Manual Reset input.
Reset can be activated using an electrical switch (or an input
from another digital device) or by a degradation of the supply
voltage. The Manual Reset function is very useful especially if
the circuit in which the ADM811/ADM812 is operating enters
into a state that can only be detected by the user. Allowing the
user to manually reset a system can reduce the damage or dan-
ger that could be otherwise caused by an out-of-control or
locked up system.
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Superior Upgrade for MAX811/MAX812
Specified Over Temperature
Low Power Consumption (5 A Typ)
Precision Voltage Monitor: +3 V, +3.3 V, +5 V Options
Reset Assertion Down to 1 V V
140 ms Min Power-On Reset
Built-In Manual Reset
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
Logic Low RESET Output (ADM811)
Logic High RESET Output (ADM812)
CC
Supervisory Circuit in 4-Lead SOT-143
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
V
MR
CC
V
REF
Figure 1. Typical Operating Circuit
FUNCTIONAL BLOCK DIAGRAM
MR
DEBOUNCE
World Wide Web Site: http://www.analog.com
ADM811
GND
ADM811/ADM812
GENERATOR
V
ADM811/ADM812
CC
RESET
RESET
Microprocessors
© Analog Devices, Inc., 1999
100k
RESET
GND
RESET/RESET
SYSTEM
GND
P
V
CC

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ADM811SART-REEL-7 Summary of contents

Page 1

... REV. 0 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices ...

Page 2

ADM811/ADM812–SPECIFICATIONS P arameter SUPPLY Voltage Current RESET VOLTAGE THRESHOLD ADM81_L ADM81_L ADM81_M ADM81_M ADM81_T ADM81_T ADM81_S ADM81_S ADM81_R ADM81_R RESET THRESHOLD TEMPERATURE COEFFICIENT V TO RESET/RESET DELAY CC RESET ACTIVE TIMEOUT PERIOD MANUAL RESET Minimum Pulsewidth Glitch Immunity RESET/RESET Propagation ...

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... +3 monitored CC supply voltage. Model* ADM811LART-REEL ADM811LART-REEL-7 ADM811MART-REEL ADM811MART-REEL-7 ADM811TART-REEL ADM811TART-REEL-7 ADM811-3TART-REEL ADM811-3TART-RL7 ADM811SART-REEL ADM811SART-REEL-7 ADM811RART-REEL ADM811RART-REEL-7 ADM812LART-REEL ADM812LART-REEL-7 ADM812MART-REEL ADM812MART-REEL-7 ADM812TART-REEL ADM812TART-REEL-7 ADM812SART-REEL ADM812SART-REEL-7 ADM812RART-REEL ADM812RART-REEL-7 *Only available in reels. Parts in bold are ex-stock, please contact factory for availability. REV. 0 ...

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Performance Characteristics ADM811/ADM812 5. TEMPERATURE – C Figure 2. Supply Current vs. ...

Page 5

... suffix is used. Please refer to Table I. Table I. Reset Threshold Options RESET Model Threshold ADM811LART 4.63 V ADM811MART 4.38 V ADM811TART 3.08 V ADM811-3TART 3.08 V ADM811SART 2.93 V ADM811RART 2.63 V ADM812LART 4.63 V ADM812MART 4.38 V ADM812TART 3.08 V ADM812SART 2.93 V ADM812RART 2.63 V Parts in bold type are ex-stock, please contact factory for availability. ...

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ADM811/ADM812 0.055 (1.40) 0.047 (1.20) 0.004 (0.10) 0.001 (0.03) SEATING OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 4-Lead Plastic Surface Mount Package (SOT-143) 0.079 (2.00) 0.071 (1.80 0.098 (2.50) 0.083 (2.10 PIN 1 0.080 (2.03) ...

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