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ADM6824SART-RL7

Description
Low Voltage Supervisory Circuits with Watchdog & Manual Reset in 5-Lead SOT-23
CategoryPower/power management    The power supply circuit   
File Size129KB,7 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

ADM6824SART-RL7 Overview

Low Voltage Supervisory Circuits with Watchdog & Manual Reset in 5-Lead SOT-23

ADM6824SART-RL7 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerADI
Parts packaging codeSOIC
package instructionMO-178AA, SOT-23, 5 PIN
Contacts5
Reach Compliance Codenot_compliant
ECCN codeEAR99
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 codeR-PDSO-G5
JESD-609 codee0
length2.9 mm
Number of channels1
Number of functions1
Number of terminals5
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply3/3.3 V
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply current (Isup)0.03 mA
Maximum supply voltage (Vsup)3.6 V
Minimum supply voltage (Vsup)2.7 V
surface mountYES
Temperature levelAUTOMOTIVE
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.6 mm
Base Number Matches1
Preliminary Technical Data
FEATURES
Low Voltage Supervisory Circuits with
Watchdog & Manual Reset in 5-Lead SOT-23
ADM6821–ADM6825
FUNCTIONAL BLOCK DIAGRAM
V
CC
Precision Low Voltage Monitoring down to 1.8V
9 Reset Threshold Options:
1.58V to 4.63V
140ms (Min) Reset Timeout
Watchdog Timer with 1.6s Timeout
Manual Reset Input
Reset Output Stages
Push-Pull Active-Low
Open-Drain Active-Low
Push-Pull Active-High
Low Power Consumption (3µA)
Guaranteed Reset Output valid to V
CC
=1V
Power Supply Glitch Immunity
Specified from -40°C to +125°C
5-Lead SOT-23 Package
ADM6821
V
CC
V
REF
RESET
GENERATOR
RESET
MR
DEBOUNCE
WATCHDOG
DETECTOR
GND
WDI
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Portable Equipment
GENERAL DESCRIPTION
The ADM6821-ADM6825 are supervisory circuits which
monitor power supply voltage levels and code execution
integrity in microprocessor-based systems. As well as providing
power-on-reset signals, an on-chip watchdog timer can reset the
microprocessor if it fails to strobe within a preset timeout
period. A reset signal can also be asserted by means of an
external push-button, through a manual reset input. The three
parts feature different combinations of watchdog input, manual
reset input and output stage configuration, as shown in table 1.
Each part is available in a choice of 9 reset threshold options
ranging from 1.58V to 4.63V. The reset and watchdog timeout
periods are fixed at 140ms (min) and 1.6s (typ), respectively.
The ADM6821-ADM6825 are available in 5-lead SOT-23
packages and typically consume only 3µA, making them
suitable for use in low power portable applications.
Table 1. Selection Table
Part No.
ADM6821
ADM6822
ADM6823
ADM6824
ADM6825
Watchdog Timer
Yes
Yes
Yes
Yes
-
Manual Reset
Yes
Yes
Yes
-
Yes
Output Stage
RESET
-
Open-Drain
Push-Pull
Push-Pull
Push-Pull
RESET
Push-Pull
-
-
Push-Pull
Push-Pull
Rev. PrA
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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
www.analog.com
Tel: 781.329.4700
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
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