ADM811TART-REEL7 Analog Devices Inc, ADM811TART-REEL7 Datasheet

IC SUPERVSR W/RESET 3.08V SOT143

ADM811TART-REEL7

Manufacturer Part Number
ADM811TART-REEL7
Description
IC SUPERVSR W/RESET 3.08V SOT143
Manufacturer
Analog Devices Inc
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of ADM811TART-REEL7

Rohs Status
RoHS non-compliant
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
3.08V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-143, SOT-143B, TO-253AA

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FEATURES
Superior upgrade for MAX811/MAX812
Specified over temperature
Low power consumption: 5 μA typical
Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options
Reset assertion down to 1 V
Power-on reset: 140 ms minimum
Logic low RESET output (ADM811)
Logic high RESET output (ADM812)
Built-in manual reset
APPLICATIONS
Microprocessor systems
Controllers
Intelligent instruments
Automotive systems
Safety systems
Portable instruments
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 six different
voltages, each allowing a 5% or 10% degradation of standard
PSU voltages before a reset occurs. These voltages have been
selected for the effective monitoring of 2.5 V, 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 are operating enters
into a state that can only be detected by the user. Allowing the
user to reset a system manually can reduce the damage or
danger that could otherwise be caused by an out-of-control
or locked system.
Rev. F
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.
CC
Circuit in 4-Lead SOT-143 with DSP
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
V
MR
CC
Microprocessor Supervisory
V
REF
FUNCTIONAL BLOCK DIAGRAM
MR
Figure 2. Typical ADM811 Operating Circuit
ADM811
GND
V
CC
RESET
ADM811/ADM812
DEBOUNCE
©2009 Analog Devices, Inc. All rights reserved.
GENERATOR
ADM811/ADM812
RESET
Figure 1.
100kΩ
MICROPROCESSOR
RESET
SYSTEM
GND
V
CC
www.analog.com
RESET/RESET
GND

Related parts for ADM811TART-REEL7

ADM811TART-REEL7 Summary of contents

Page 1

FEATURES Superior upgrade for MAX811/MAX812 Specified over temperature Low power consumption: 5 μA typical Precision voltage monitor options Reset assertion down Power-on reset: 140 ms minimum Logic low ...

Page 2

ADM811/ADM812 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 Pin Configuration and Function Descriptions ...

Page 3

SPECIFICATIONS V = full operating range MIN models, unless otherwise noted. Table 1. Parameter SUPPLY Voltage Current RESET VOLTAGE THRESHOLD ADM81xL ADM81xL ADM81xM ADM81xM ADM81xT ADM81xT ADM81xS ADM81xS ADM81xR ADM81xR ADM81xZ ADM81xZ RESET ...

Page 4

ADM811/ADM812 ABSOLUTE MAXIMUM RATINGS Typical values are 25°C, unless otherwise noted. A Table 2. Parameter Terminal Voltage (With Respect to Ground All Other Inputs Input Current Output Current RESET Power Dissipation (T ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 GND Ground Reference For All Signals RESET (ADM811) Active Low Logic Output. RESET remains low while V RESET then remains low for ...

Page 6

ADM811/ADM812 TYPICAL PERFORMANCE CHARACTERISTICS –40 – TEMPERATURE (°C) Figure 4. Supply Current vs. Temperature (ADM81xR/S/T/Z) 1000 900 ...

Page 7

... A reset output is provided to the microprocessor whenever the V input is below the reset threshold. The actual reset threshold CC depends on whether suffix is used (see Table 4). Table 4. Reset Threshold Options Model Reset Threshold (V) ADM811LART 4.63 ADM811MART 4.38 ADM811TART 3.08 ADM811-3TART 3.08 ADM811SART 2.93 ADM811RART 2.63 ADM811ZART 2.32 ADM812LART 4.63 ADM812MART 4 ...

Page 8

ADM811/ADM812 INTERFACING TO OTHER DEVICES OUTPUT The ADM811/ADM812 are designed to integrate with as many devices as possible. One feature of the ADM811/ADM812 is the reset output, which is directly proportional to V anteed only while V is greater than ...

Page 9

OUTLINE DIMENSIONS 1.40 1.30 1.20 1.22 0.80 0.89 0.76 3.04 2.90 2.80 0.20 BSC 2. 2. 1.92 BSC 1.07 0.90 0.75 0.20 0.100 0.013 0.08 0.50 SEATING 0.30 PLANE 0.54 REF COMPLIANT TO JEDEC STANDARDS TO-253-AA ...

Page 10

... ORDERING GUIDE Reset 1 Model Threshold (V) ADM811LART-REEL 4.63 ADM811LART-REEL7 4.63 2 ADM811LARTZ-REEL 4.63 2 ADM811LARTZ-REEL7 4.63 ADM811MART-REEL7 4.38 2 ADM811MARTZ-REEL 4.38 2 ADM811MARTZ-REEL7 4.38 ADM811TART-REEL 3.08 ADM811TART-REEL7 3.08 2 ADM811TARTZ-REEL 3.08 ADM811TARTZ-REEL7 2 3.08 ADM811-3TART-REEL7 3.08 2 ADM811-3TARTZ-RL 3.08 2 ADM811-3TARTZ-RL7 3.08 ADM811SART-REEL 2.93 ADM811SART-REEL7 2.93 2 ADM811SARTZ-REEL 2.93 2 ADM811SARTZ-REEL7 2.93 ADM811RART-REEL7 2 ...

Page 11

NOTES Rev Page ADM811/ADM812 ...

Page 12

ADM811/ADM812 NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00092-0-8/09(F) Rev Page ...

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