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ADM6315 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADM6315
Description  Open-Drain Microprocessor Supervisory Circuit in 4-Lead SOT-143
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Maker  AD [Analog Devices]
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ADM6315 Datasheet(HTML) 1 Page - Analog Devices

   
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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.
a
ADM6315
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1999
Open-Drain Microprocessor
Supervisory Circuit in 4-Lead SOT-143
FUNCTIONAL BLOCK DIAGRAM
VREF
DEBOUNCE
RESET
CIRCUITRY
ADM6315
VCC
MR
GND
RESET
FEATURES
Superior Upgrade for MAX6315
Specified Over Temperature
Low Power Consumption (5
A Typ)
Precision Voltage Monitor of Voltages from 2.5 V to
5 V at 100 mV Increments
Reset Assertion Down to VCC > 1 V
Built-In Manual Reset
Pin Compatible with the ADM811
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
ADM6315
MR
VCC
RESET
GND
RESET
GND
P
SYSTEM
10k
SYSTEM POWER
Figure 1. 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% degra-
dation of a power supply voltage. Voltages that can be moni-
tored by the ADM6315 are 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), by a low input from another digital device or by a degra-
dation of the supply voltage. The manual reset function is very
useful, especially if the circuit in which the ADM6315 is oper-
ating, 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 danger that could be otherwise caused by an out of
control or locked-up system.
The ADM6315 comes in a cost and space efficient SOT-143
package.


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