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| 型号： | LM75BD,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 18/37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 |
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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
18 of 37
NXP Semiconductors
LM75B
Digital temperature sensor and thermal watchdog
V
OL(EVENT)
= 0.4 V
I
OL(sink)EVENT
= 3 mA
R
th(j-a)
= 56 癈/W
Self heating due to power dissipation is:
(2)
8.4 Noise effect
The LM75B device design includes the implementation of basic features for a good noise
immunity:
" The low-pass filter on both the bus pins SCL and SDA;
" The hysteresis of the threshold voltages to the bus input signals SCL and SDA, about
500 mV minimum;
" All pins have ESD protection circuitry to prevent damage during electrical surges. The
ESD protection on the address, OS, SCL and SDA pins it to ground. The latch-back
based device breakdown voltage of address/OS is typically 11 V and SCL/SDA is
typically 9.5 V at any supply voltage but will vary over process and temperature. Since
there are no protection diodes from SCL or SDA to V
CC
, the LM75B will not hold the
I
2
C lines LOW when V
CC
is not supplied and therefore allow continued I
2
C-bus
operation if the LM75B is de-powered.
However, good layout practices and extra noise filters are recommended when the device
is used in a very noisy environment:
" Use decoupling capacitors at V
CC
pin.
" Keep the digital traces away from switching power supplies.
" Apply proper terminations for the long board traces.
" Add capacitors to the SCL and SDA lines to increase the low-pass filter
characteristics.
T 56
3.6 0.4
?/DIV>
(
) 0.4 3
?/DIV>
(
) 0.4 1
?/DIV>
(
)
+
+
[
]
?/DIV>
56 ?/SPAN>C W 3.04 mW 0.17 ?/SPAN>C
=
?/DIV>
?/DIV>
=
=
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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 |
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