ADM9264ARN-REEL Analog Devices Inc, ADM9264ARN-REEL Datasheet

IC SUPPLY MONITOR QUAD 16SOIC

ADM9264ARN-REEL

Manufacturer Part Number
ADM9264ARN-REEL
Description
IC SUPPLY MONITOR QUAD 16SOIC
Manufacturer
Analog Devices Inc
Type
Multi-Voltage Supervisorr
Datasheet

Specifications of ADM9264ARN-REEL

Number Of Voltages Monitored
4
Output
Open Drain or Open Collector
Reset
Active Low
Voltage - Threshold
2.8V, 3.3V, 5V, 12V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Reset Timeout
-
a
GENERAL DESCRIPTION
The ADM9264 is a Quad Supply Monitor IC which simulta-
neously monitors four separate power supply voltages and out-
puts error signals if any of the supply voltages go out of limits.
It is designed for PC supply monitoring but can be used on
any system where multiple power supplies require monitor-
ing. The error output signals are available individually and also
gated into a common output - PWROK. Auxiliary inputs
ERRX, ERRY are provided which are also gated into the main
PWROK signal. These inputs allow signals from other monitor-
ing circuits (for example temperature sensor, alarm, etc.) to be
linked into the ADM9264.
Each power supply monitor circuit uses a proprietary window
comparator design whereby a three resistor network is used in
conjunction with two comparators and a single precision voltage
reference to check if the supply is within its required operating
tolerance. An added feature of this design is that the power
supply voltages being monitored can be higher than the power
supply voltage to the monitoring IC itself.
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.
FEATURES
Monitoring of 12 V, 5 V, 3.3 V and 2.8 V Supplies in
Auxiliary Sensor Inputs
Low Power: 25 A Typical
Internal Comparator Hysteresis
Power Supply Glitch Immunity
V
Guaranteed from –40 C to +85 C
No External Components
16-Pin Narrow SOIC Package (150 Mil Wide)
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Network Systems
CC
Parallel
from 2.5 V to 6 V
Analog Devices’ experience in the design of power supply super-
visory circuits is used to provide an optimum solution for the
overall circuit in terms of cost, performance and power con-
sumption. Key features of the design include the incorporation
of hysteresis and glitch immunity into the comparators, which
minimizes the possibility of spurious triggering by noise spikes
on the supplies being monitored.
The part is manufactured on one of Analog Devices’ proprietary
BiCMOS processes, which also includes high performance thin
film resistors to achieve the accuracy required for the precision
voltage reference and power supply high and low trip points.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
ERRX
GND
V
SU1
SU2
SU3
SU4
NC
CC
Quad Power Supply Monitor
1
2
3
4
5
6
7
8
NC = NO CONNECT
FUNCTIONAL BLOCK DIAGRAM
ADM9264
V
REF
World Wide Web Site: http://www.analog.com
H
H
H
H
L
L
L
L
for Desktop PCs
© Analog Devices, Inc., 1997
ADM9264
MONITOR
PWROK
LOGIC
16
15
14
13
12
11
10
9
PWROK
DIS
SU4DET
ERR3
ERRY
ERR1
ERR2
ERR4

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ADM9264ARN-REEL Summary of contents

Page 1

FEATURES Monitoring 3.3 V and 2.8 V Supplies in Parallel Auxiliary Sensor Inputs Low Power Typical Internal Comparator Hysteresis Power Supply Glitch Immunity V from 2 Guaranteed ...

Page 2

ADM9264–SPECIFICATIONS Parameter OPERATING TEMPERATURE RANGE V SUPPLY VOLTAGE CC V SUPPLY CURRENT CC SU1 INPUT RESISTANCE SU2 INPUT RESISTANCE SU3 INPUT RESISTANCE SU4 INPUT RESISTANCE SU1 HIGH TRIP POINT SU2 HIGH TRIP POINT SU3 HIGH TRIP POINT SU4 HIGH TRIP ...

Page 3

... Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV. 0 ORDERING GUIDE Model + 0 ADM9264ARN 2 ADM9264ARN-REEL ADM9264ARN-REEL7 NOTES Small Outline IC. 2 2500 devices per reel. 3 1000 devices per reel. –3– ADM9264 Temperature ...

Page 4

ADM9264 PIN FUNCTION DESCRIPTIONS Pin No. Mnemonic Function 1 GND Ground. 2 SU1 Supply to Be Monitored SU2 Supply to Be Monitored SU3 Supply to Be Monitored. 3 SU4 Supply to Be ...

Page 5

CIRCUIT INFORMATION Monitor Inputs SU1 to SU4 The ADM9624 is provided with four analog inputs, SU1 to SU4, to monitor supply voltages of + +3.3 V and +2.8 V. Each input is connected to a window comparator ...

Page 6

TEMPERATURE – C Figure 1. Hysteresis vs. Temperature for SU1—Low to High 0.5 0.4 0.3 0.2 0.1 0 –30 – TEMPERATURE – ...

Page 7

TEMPERATURE – C Figure 7. Hysteresis vs. Temperature for SU4—Low to High 0.12 0.1 0.08 0.06 0.04 0.02 0 –30 – ...

Page 8

ADM9264 –10 –20 – –20 TEMPERATURE – C Figure 13. Variation of SU3 High Trip Point With Temperature –10 –20 – ...

Page 9

TEMPERATURE – C Figure 19. SU3 Input Resistance vs. Temperature TEMPERATURE – ...

Page 10

ADM9264 APPLICATIONS A typical application of the ADM9264 is shown in Figure 23. The analog inputs SU1 to SU4 are connected to the four power supply outputs of a system to monitor the supply voltages. One of the digital inputs, ...

Page 11

REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 16-Lead Narrow SOIC (R-16A) 0.3937 (10.00) 0.3859 (9.80 0.1574 (4.00) 0.2440 (6.20) 0.1497 (3.80 0.2284 (5.80) 0.0688 (1.75) PIN 1 0.0532 (1.35) 0.0098 (0.25) 0.0040 (0.10) ...

Page 12

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