- 您现在的位置：买卖IC网 > PDF目录67358 > ADT7482ARMZ-U2 (ON SEMICONDUCTOR) DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQUARE, SURFACE MOUNT PDF资料下载
参数资料
| 型号： | ADT7482ARMZ-U2 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQUARE, SURFACE MOUNT |
| 封装： | LEAD FREE, MO-187-BA, MSOP-10 |
| 文件页数： | 1/24页 |
| 文件大小： | 335K |
| 代理商： | ADT7482ARMZ-U2 |
Dual Channel Temperature Sensor
and Overtemperature Alarm
ADT7482
2008 SCILLC. All rights reserved.
Publication Order Number:
February 2008 – Rev. 1
ADT7482/D
FEATURES
1 local and 2 remote temperature sensors
0.25°C resolution/1°C accuracy on remote channels
1°C resolution/1°C accuracy on local channel
Automatically cancels up to 1.5 kΩ (typ) of resistance in
series with the remote sensors
Extended, switchable temperature measurement range 0°C
to +127°C (default) or 55°C to +150°C
2-wire SMBus serial interface with SMBus alert support
Programmable overtemperature/undertemperature limits
Offset registers for system calibration
Up to 2 overtemperature fail-safe THERM outputs
Small, 10-lead MSOP package
240 μA operating current, 5 μA standby current
APPLICATIONS
Desktop and notebook computers
Industrial controllers
Smart batteries
Automotive
Embedded systems
Burn-in applications
Instrumentation
GENERAL DESCRIPTION
The ADT74821 is a three-channel digital thermometer and
undertemperature/overtemperature alarm for PCs and thermal
management systems. It can measure the temperature in two
remote locations, such as in the remote thermal diode in a CPU
or GPU, or using a discrete diode connected transistor. This
device also measures its own ambient temperature.
One feature of the ADT7482 is series resistance cancellation
where up to 1.5 kΩ (typical) of resistance in series with each of
the temperature monitoring diodes can be automatically
cancelled from the temperature result, allowing noise filtering.
The temperature of the remote thermal diodes and ambient
temperature can be measured accurate to ±1°C. The tempera-
ture measurement range, which defaults to 0°C to 127°C, can be
switched to a wider measurement range of from 55°C to +150°C.
The ADT7482 communicates over a 2-wire serial interface
compatible with system management bus (SMBus) standards.
The default address of the ADT7482 is 0x4C. An ALERT output
signals when the on-chip or remote temperature is outside the
programmed limits. The THERM output is a comparator output
that allows on/off control of a cooling fan. The ALERT output can
be reconfigured as a second THERM output if required.
1 Protected by U.S. Patents 5,195,827, 5,867,012, 5,982,221, 6,097,239,
6,133,753, 6,169,442, 7,010,440, other patents pending.
FUNCTIONAL BLOCK DIAGRAM
11-BIT ADC
RUN/STANDBY
BUSY
SRC
LI
M
IT
C
O
M
PA
R
A
TO
R
STATUS REGISTERS
INTERRUPT
MASKING
LOCAL TEMPERATURE
VALUE REGISTER
ON-CHIP
TEMPERATURE
SENSOR
ANALOG
MUX
EXTERNAL DIODES OPEN-CIRCUIT
SMBus INTERFACE
ADT7482
6
7
10
1
5
9
VDD
GND
SDATA
SCLK
8
D2+
D2–
3
2
D1+
D1–
ALERT/THERM2
CONFIGURATION
REGISTERS
LOCAL TEMPERATURE
HIGH-LIMIT REGISTER
LOCAL TEMPERATURE
LOW-LIMIT REGISTER
LOCAL TEMPERATURE
THERM-LIMIT REGISTER
CONVERSION RATE
REGISTER
ONE-SHOT
REGISTER
ADDRESS POINTER
REGISTER
DI
G
IT
A
LM
U
X
4
THERM
061
50-
00
1
REMOTE 1 AND 2 TEMP
VALUE REGISTERS
REMOTE 1 AND 2 TEMP
THERM-LIMIT REGISTERS
REMOTE 1 AND 2 TEMP
LOW-LIMIT REGISTERS
REMOTE 1 AND 2 TEMP
HIGH-LIMIT REGISTERS
REMOTE 1 AND 2 TEMP
VALUE REGISTERS
Figure 1.
相关PDF资料 |
PDF描述 |
|---|---|
| ADT7485ARMZ-REEL | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| ADT7485ARMZ | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| ADT7485ARMZ-REEL7 | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| ADT7486ARMZ-REEL | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| ADT7486ARMZ-REEL7 | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADT7483A | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Channel Temperature Sensor and Over Temperature Alarm |
| ADT7483AARQZ | 功能描述:板上安装温度传感器 2 TEMP DIODE MONITOR 2 WIRE SMBUS INTRFCE RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| ADT7483AARQZ-R7 | 功能描述:板上安装温度传感器 2 TEMP DIODE MONITOR 2 WIRE SMBUS INTRFCE RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| ADT7483AARQZ-REEL | 功能描述:IC TEMP SENSOR/ALARM 3CH 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADT7483AARQZ-REEL7 | 功能描述:IC TEMP SENSOR/ALARM 3CH 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
发布紧急采购，3分钟左右您将得到回复。