參數(shù)資料
型號(hào): ADM9264
廠商: Analog Devices, Inc.
英文描述: Quad Power Supply Monitor for Desktop PCs
中文描述: 四電源監(jiān)視器桌面電腦
文件頁數(shù): 1/12頁
文件大?。?/td> 181K
代理商: ADM9264
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.
a
ADM9264
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
FEATURES
Monitoring of 12 V, 5 V, 3.3 V and 2.8 V Supplies in
Parallel
Auxiliary Sensor Inputs
Low Power: 25
m
A Typical
Internal Comparator Hysteresis
Power Supply Glitch Immunity
V
CC
from 2.5 V to 6 V
Guaranteed from –40
8
C to +85
8
C
No External Components
16-Pin Narrow SOIC Package (150 Mil Wide)
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Network Systems
FUNCTIONAL BLOCK DIAGRAM
L
H
V
REF
NC = NO CONNECT
L
H
L
H
L
H
PWROK
MONITOR
LOGIC
14
13
12
11
16
15
10
9
8
1
2
3
4
7
6
5
GND
SU1
SU2
SU3
SU4
NC
ERRX
V
CC
ERR1
ERR2
PWROK
ERR3
ERR4
DIS
ERRY
SU4DET
ADM9264
Quad Power Supply Monitor
for Desktop PCs
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.
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.
相關(guān)PDF資料
PDF描述
ADM9264ARN Quad Power Supply Monitor for Desktop PCs
ADMC326TN 28-Lead ROM-Based DSP Motor Controller
ADMC326TR 28-Lead ROM-Based DSP Motor Controller
ADMC326YN 28-Lead ROM-Based DSP Motor Controller
ADMC326YR 28-Lead ROM-Based DSP Motor Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADM9264ARN 制造商:Analog Devices 功能描述:Volt Supervisor Monitor 2.8V/3.3V/5V/12V 16-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:MULTI-SUPPLY HARDWARE MON - Bulk
ADM9264ARN-REEL 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
ADM9264ARN-REEL7 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
ADM9264ARNZ 制造商:Analog Devices 功能描述:Volt Supervisor Monitor 2.8V/3.3V/5V/12V 16-Pin SOIC N 制造商:Analog Devices 功能描述:Microprocessor Supervisor
ADM9511 制造商:Rochester Electronics LLC 功能描述:- Bulk