欢迎访问ic37.com |
会员登录 免费注册
发布采购

ADM1032ARM 参数 Datasheet PDF下载

ADM1032ARM图片预览
型号: ADM1032ARM
PDF下载: 下载PDF文件 查看货源
内容描述: + -1C远程和本地系统温度监控器 [+-1C Remote and Local System Temperature Monitor]
分类和应用: 模拟IC信号电路光电二极管监控
文件页数/大小: 12 页 / 166 K
品牌: AD [ ANALOG DEVICES ]
 浏览型号ADM1032ARM的Datasheet PDF文件第2页浏览型号ADM1032ARM的Datasheet PDF文件第3页浏览型号ADM1032ARM的Datasheet PDF文件第4页浏览型号ADM1032ARM的Datasheet PDF文件第5页浏览型号ADM1032ARM的Datasheet PDF文件第6页浏览型号ADM1032ARM的Datasheet PDF文件第7页浏览型号ADM1032ARM的Datasheet PDF文件第8页浏览型号ADM1032ARM的Datasheet PDF文件第9页  
a
FEATURES
On-Chip and Remote Temperature Sensing
Offset Registers for System Calibration
0.125 C Resolution/1 C Accuracy on Remote Channel
1 C Resolution/3 C Accuracy on Local Channel
Fast (Up to 64 Measurements per Second)
2-Wire SMBus Serial Interface
Supports SMBus Alert
Programmable Over/Under Temperature Limits
Programmable Fault Queue
Over-Temperature Fail-Safe
THERM
Output
Programmable
THERM
Limits
Programmable
THERM
Hysteresis
170 A Operating Current
5.5 A Standby Current
3 V to 5.5 V Supply
Small 8-Lead SO and Micro_SO Package
APPLICATIONS
Desktop Computers
Notebook Computers
Smart Batteries
Industrial Controllers
Telecomms Equipment
Instrumentation
Embedded Systems
1 C Remote and Local
System Temperature Monitor
ADM1032
*
PRODUCT DESCRIPTION
The ADM1032 is a dual-channel digital thermometer and
under/over temperature alarm, intended for use in personal
computers and thermal management systems. The higher 1°C
accuracy offered allows systems designers to safely reduce
temperature guardbanding and increase system performance.
The device can measure the temperature of a microprocessor
using a diode-connected NPN or PNP transistor, which may be
provided on-chip or can be a low-cost discrete device such as
the 2N3906. A novel measurement technique cancels out the
absolute value of the transistor’s base emitter voltage, so that no
calibration is required. The second measurement channel mea-
sures the output of an on-chip temperature sensor, to monitor
the temperature of the device and its environment.
The ADM1032 communicates over a two-wire serial interface
compatible with System Management Bus (SMBus) standards.
Under and over temperature limits can be programmed into the
device over the serial bus, and an
ALERT
output signals when
the on-chip or remote temperature measurement is out of range.
This output can be used as an interrupt, or as an SMBus alert.
The
THERM
output is a comparator output that allows CPU
clock throttling or on/off control of a cooling fan.
FUNCTIONAL BLOCK DIAGRAM
ADDRESS POINTER
REGISTER
ON-CHIP
TEMPERATURE
SENSOR
CONVERSION RATE
REGISTER
LOCAL TEMPERATURE
VALUE REGISTER
LOCAL TEMPERATURE
LOW-LIMIT REGISTER
DIGITAL MUX
D+
D–
BUSY
RUN/STANDBY
REMOTE TEMPERATURE
VALUE REGISTER
LIMIT
COMPARATOR
DIGITAL MUX
ANALOG
MUX
A-TO-D
CONVERTER
LOCAL TEMPERATURE
HIGH-LIMIT REGISTER
REMOTE TEMPERATURE
LOW-LIMIT REGISTER
REMOTE TEMPERATURE
HIGH-LIMIT REGISTER
LOCAL THERM LIMIT
REGISTER
REMOTE OFFSET
REGISTER
EXTERNAL THERM LIMIT
REGISTER
CONFIGURATION
REGISTER
EXTERNAL DIODE OPEN-CIRCUIT
STATUS REGISTER
INTERRUPT
MASKING
SMBUS INTERFACE
ALERT
THERM
ADM1032
V
DD
GND
SDATA
SCLK
Pentium is a registered trademark of Intel Corporation.
*Patents
5,982,221, 6,097,239, 6,133,753, 6,169,442, 5,867,012.
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 that
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
Fax: 781/326-8703
© Analog Devices, Inc., 2001