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ADM6315-44D2ART-RL Datasheet(PDF) 1 Page - Analog Devices

Part No. ADM6315-44D2ART-RL
Description  Open-Drain Microprocessor Supervisory Circuit in 4-Lead SOT-143
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ADM6315-44D2ART-RL Datasheet(HTML) 1 Page - Analog Devices

 
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Open-Drain Microprocessor
Supervisory Circuit in 4-Lead SOT-143
Data Sheet
ADM6315
Rev. G
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Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©1999–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
Specified over temperature
Low power consumption (5 μA typical)
Precision voltage monitor of voltages from 2.5 V to 5 V
at 100 mV increments
Reset assertion down to VCC > 1 V
Reset timeout periods: 1 ms, 20 ms, 140 ms,
or 1120 ms (minimum)
Built-in manual reset
Pin compatible with the ADM811
Available in SOT-143 package
Qualified for automotive applications
APPLICATIONS
Microprocessor systems
Controllers
Intelligent instruments
Automotive systems
Safety systems
Portable instruments
FUNCTIONAL BLOCK DIAGRAM
DEBOUNCE
ADM6315
MR
GND
RESET
VCC
VREF
RESET
CIRCUITRY
Figure 1.
ADM6315
GND
GND
10kΩ
SYSTEM POWER
VCC
MICROPROCESSOR
SYSTEM
RESET
RESET
MR
Figure 2. Typical Operating Circuit
GENERAL DESCRIPTION
The ADM6315 is a reliable voltage-monitoring device that is
suitable for use in most voltage-monitoring applications.
The ADM6315 is designed to monitor as little as a 1.8%
degradation of a power supply voltage. The ADM6315 can
monitor all voltages (at 100 mV increments) from 2.5 V to 5 V.
Included in this circuit is a debounced manual reset input.
RESET can be activated using an ordinary switch (pulling MR
low), a low input from another digital device, or a degradation
of the supply voltage.
The manual reset function is very useful, especially if the circuit
in which the ADM6315 is operating enters into a state that can
be detected only 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-up system.
The ADM6315 is available in a cost- and space-efficient
SOT-143 package.


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