ADM6315-25D1ART-RL7 查看數據表（PDF） - Analog Devices

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ADM6315-25D1ART-RL7

Open-Drain Microprocessor Supervisory Circuit in 4-Lead SOT-143

Analog Devices 

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Open-Drain Microprocessor

Supervisory Circuit in 4-Lead SOT-143

ADM6315

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

FUNCTIONAL BLOCK DIAGRAM

GND

ADM6315

VREF

VCC

RESET

RESET

CIRCUITRY

DEBOUNCE

MR

VCC

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.

ADM6315

MR

RESET

10k⍀

SYSTEM POWER

␮P

SYSTEM

RESET

GND

GND

Figure 1. Typical Operating Circuit

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.

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

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