- 您现在的位置：买卖IC网 > Datasheet目录41 > LM75BD,112 (NXP Semiconductors)IC TEMP SENSOR DIGITAL 8-SOIC Datasheet资料下载
参数资料
| 型号： | LM75BD,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 5/37页 |
| 文件大小： | 520K |
| 描述： | IC TEMP SENSOR DIGITAL 8-SOIC |
| 特色产品： | Digital Temperature Sensor / Thermal Watchdog |
| 标准包装： | 100 |
| 功能： | 温度监视系统（传感器），监视器 |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±3°C（最小值） |
| 拓扑： | ADC（三角积分型），比较器，振荡器，寄存器库 |
| 输出类型： | 2 线串行，I²C? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 2.8 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
| 其它名称： | 935285837112 LM75BD LM75BD-ND |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页
LM75B
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 5 22 January 2014
5 of 37
NXP Semiconductors
LM75B
Digital temperature sensor and thermal watchdog
6.2 Pin description
7. Functional description
7.1 General operation
The LM75B uses the on-chip band gap sensor to measure the device temperature with
the resolution of 0.125 癈 and stores the 11-bit twos complement digital data, resulted
from 11-bit A-to-D conversion, into the device Temp register. This Temp register can be
read at any time by a controller on the I
2
C-bus. Reading temperature data does not affect
the conversion in progress during the read operation.
The device can be set to operate in either mode: normal or shutdown. In normal operation
mode, the temp-to-digital conversion is executed every 100 ms and the Temp register is
updated at the end of each conversion. During each conversion period (T
conv
) of about
100 ms the device takes only about 10 ms, called temperature conversion time (t
conv(T)
),
to complete a temperature-to-data conversion and then becomes idle for the time
remaining in the period. This feature is implemented to significantly reduce the device
power dissipation. In shutdown mode, the device becomes idle, data conversion is
disabled and the Temp register holds the latest result; however, the device I
2
C-bus
interface is still active and register write/read operation can be performed. The device
operation mode is controllable by programming bit B0 of the configuration register. The
temperature conversion is initiated when the device is powered-up or put back into normal
mode from shutdown.
In addition, at the end of each conversion in normal mode, the temperature data (or Temp)
in the Temp register is automatically compared with the overtemperature shutdown
threshold data (or T
th(ots)
) stored in the Tos register, and the hysteresis data (or T
hys
)
stored in the Thyst register, in order to set the state of the device OS output accordingly.
The device Tos and Thyst registers are write/read capable, and both operate with 9-bit
twos complement digital data. To match with this 9-bit operation, the Temp register uses
only the 9 MSB bits of its 11-bit data for the comparison.
The way that the OS output responds to the comparison operation depends upon the OS
operation mode selected by configuration bit B1, and the user-defined fault queue defined
by configuration bits B3 and B4.
Table 3.
Pin description
Symbol
Pin
Description
SDA
1
Digital I/O. I
2
C-bus serial bidirectional data line; open-drain.
SCL
2
Digital input. I
2
C-bus serial clock input.
OS
3
Overtemperature Shutdown output; open-drain.
GND
4
Ground. To be connected to the system ground.
A2
5
Digital input. User-defined address bit 2.
A1
6
Digital input. User-defined address bit 1.
A0
7
Digital input. User-defined address bit 0.
V
CC
8
Power supply.
相关PDF资料 |
PDF描述 |
|---|---|
| LM75BIMX-5+ | IC TEMP SENSOR WATCHDOG 8SOIC |
| LM92CIMX/NOPB | IC SENSOR TEMP/THERM COMP 8-SOIC |
| LT1123CST#TRPBF | IC REG CTRLR SGL 5V SOT223 |
| LT1248IS#PBF | IC PFC CTRLR AVERAGE CURR 16SOIC |
| LT1249IS8#PBF | IC PFC CTRLR AVERAGE CURR 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM75BDP | 制造商:NXP Semiconductors 功能描述:IC TEMP SENSOR DIGITAL 8-TSSOP 制造商:NXP Semiconductors 功能描述:IC, TEMP SENSOR, DIGITAL, 8-TSSOP |
| LM75BDP,118 | 功能描述:板上安装温度传感器 I2C LOCAL +/- 20C TS DIGITAL TEMP SENSOR 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 |
| LM75BDP,118-CUT TAPE | 制造商:NXP 功能描述:LM75 Series Digital Temperature Sensor/Thermal Watchdog Surface Mount- TSSOP - 8 |
| LM75BDP/DG,118 | 功能描述:板上安装温度传感器 DIGITAL TEMP SENSOR AND THERMAL WATCHDOG 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 |
| LM75BDP118 | 制造商:NXP Semiconductors 功能描述:DIGITAL TEMP SENSOR IC 11BIT +/-3C TS |
发布紧急采购，3分钟左右您将得到回复。