收藏本站
ADT7462
I
N1 ? I
N2 ? I
I BIAS
V CC
D+
V OUT+
REMOTE
SENSING
TRANSISTOR
C1*
D ?
BIAS
DIODE
LOW-PASS FILTER
f C = 65 kHz
To ADC
V OUT ?
*CAPACITOR C1 IS OPTIONAL. IT SHOULD ONLY BE USED IN NOISY ENVIRONMENTS.
Figure 33. Input Signal Conditioning
The temperature value is stored in two registers. The MSB
has a resolution of 1 ? C. Only two bits in the temperature
LSB register are used, Bit 7 and Bit 6, giving a temperature
measurement resolution of 0.25 ? C. The temperature
measurement range for both local and remote measurements
is from ? 64 ? C to +191 ? C. However, the ADT7462 itself
should never be operated outside its operating temperature
range, which is from ? 40 ? C to +125 ? C. For the remote
diode, the user should refer to the data sheet of the diode.
Table 13. TEMPERATURE DATA FORMAT
appears as a temperature offset in the remote sensor ’s
temperature measurement. This error typically causes a
0.8 ? C offset per ohm of parasitic resistance in series with the
remote diode.
The ADT7462 automatically cancels out the effect of this
series resistance on the temperature reading, giving a more
accurate result, without the need for user characterization of
this resistance. The ADT7462 is designed to automatically
cancel typically up to 2 k W of resistance. By using an
advanced temperature measurement method, the process is
transparent to the user. This feature also allows an RCR filter
Temperature Value
? 64 ? C
? 50.25 ? C
? 25 ? C
0 ? C
+25 ? C
+50.25 ? C
+100 ? C
MSB
0000 0000
0000 1110
0010 0111
0100 0000
0101 1001
0111 0010
1010 0100
LSB
0000 0000
0100 0000
0000 0000
0000 0000
0000 0000
0100 0000
0000 0000
to be added to the sensor path, allowing the part to be used
accurately in noisy environments.
Temperature Limits
Each temperature measurement channel has a high and
low temperature limit associated with it. The temperature
measurements are compared with these limits, and the
results of these comparisons are stored in status registers. A
Logic 0 indicates an in-limit comparison, and a Logic 1
indicates an out-of-limit comparison. The ADT7462 can
When reading the full temperature value, the LSB should
be read first and then the MSB. Reading the LSBs causes the
current MSBs to be frozen until they are read. Reading the
MSBs only does not cause any register to be locked. This is
useful when a temperature reading with 1 ? C resolution is
required.
Series Resistance Cancellation
Parasitic resistance in series with the remote diode D+ and
D ? inputs can be caused by a variety of factors, including
generate an ALERT, if configured to do so, after a status bit
is set. For more information on the status registers and
ALERT, see the Status and Mask Registers ALERT section.
Each temperature channel also has a THERM1 and a
THERM2 temperature limit associated with it. When these
temperature limits are exceeded, the corresponding
THERM pin is asserted low (if THERM is configured as an
output), and the fans are boosted to full speed (if the boost
bit is set). Table 14 shows a complete list of all the
temperature limits and their default values.
PCB track resistance and track length. This series resistance
http://onsemi.com
20
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
ADT7467BBZEVB BOARD EVALUATION FOR ADT7467
ADT7468ZEVB BOARD EVAL FOR ADT7468
ADT7473ZEVB BOARD EVALUATION FOR ADT7473
ADT7475EBZEVB BOARD EVALUATION FOR ADT7475
ADT7476EBZEVB BOARD EVALUATION FOR ADT7476
ADT7490ZEVB BOARD EVALUATION FOR ADT7490
ADZS-21262-1-EZEXT BOARD DAUGHTER FOR ADSP-21262
ADZS-BF-EZEXT-1 BOARD DAUGHTER ADSP-BF533/561KIT
相关代理商/技术参数
ADT7463 制造商:AD 制造商全称:Analog Devices 功能描述:dB COOL Remote Thermal Controller and Voltage Monitor
ADT7463ARQ 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 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
ADT7463ARQ-REEL 功能描述:IC SENSOR TEMP FAN-CTRL 24QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 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
ADT7463ARQ-REEL7 功能描述:IC SENSOR TEMP FAN-CTRL 24QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 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
ADT7463ARQZ 功能描述:马达/运动/点火控制器和驱动器 SYS MGMT CNTRLR IC RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
ADT7463ARQZ-R7 功能描述:板上安装温度传感器 SYS MGMT CNTRLR IC 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
ADT7463ARQZ-REEL 功能描述:板上安装温度传感器 SYS MGMT CNTRLR IC 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
ADT7463ARQZ-REEL7 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 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