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| 型号： | LM75AD/G-T |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/24页 |
| 文件大小： | 137K |
| 描述： | IC I2C TEMP SNSR/WATCHDOG 8-SOIC |
| 标准包装： | 1 |
| 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： | 剪切带 (CT) |
| 配用： | 568-4002-ND - DEMO BOARD I2C |
| 其它名称： | 568-1889-1 |
1. General description
The LM75A is a temperature-to-digital converter using an on-chip band gap temperature
sensor and Sigma-delta A-to-D conversion technique. The device is also a thermal
detector providing an overtemperature detection output. The LM75A contains a number of
data registers: Conguration register (Conf) to store the device settings such as device
operation mode, OS operation mode, OS polarity and OS fault queue as described in
Section 7 Functional descr
iption ; temperature register (Temp) to store the digital temp
reading, and set-point registers (Tos and Thyst) to store programmable overtemperature
shutdown and hysteresis limits, that can be communicated by a controller via the 2-wire
serial I
2
C-bus interface. The device also includes an open-drain output (OS) which
becomes active when the temperature exceeds the programmed limits. There are three
selectable logic address pins so that eight devices can be connected on the same bus
without address conict.
The LM75A can be congured for different operation conditions. It can be set in normal
mode to periodically monitor the ambient temperature, or in shutdown mode to minimize
power consumption. The OS output operates in either of two selectable modes:
OS comparator mode or OS interrupt mode. Its active state can be selected as either
HIGH or LOW. The fault queue that denes the number of consecutive faults in order to
activate the OS output is programmable as well as the set-point limits.
The temperature register always stores an 11-bit 2's complement data giving a
temperature resolution of 0.125 癈. This high temperature resolution is particularly useful
in applications of measuring precisely the thermal drift or runaway.
The device is powered-up in normal operation mode with the OS in comparator mode,
temperature threshold of 80 癈 and hysteresis of 75 癈, so that it can be used as a
stand-alone thermostat with those pre-dened temperature set points.
2. Features
I Pin-for-pin replacement for industry standard LM75 and offers improved temperature
resolution of 0.125 癈 and specication of a single part over power supply range from
2.8 V to 5.5 V
I Small 8-pin package types: SO8 and TSSOP8
I I
2
C-bus interface with up to 8 devices on the same bus
I Power supply range from 2.8 V to 5.5 V
I Temperatures range from 55 ?/SPAN>C to +125 ?/SPAN>C
I 11-bit ADC that offers a temperature resolution of 0.125 ?/SPAN>C
LM75A
Digital temperature sensor and thermal watchdog
Rev. 04 10 July 2007
Product data sheet
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM75ADP | 制造商:NXP Semiconductors 功能描述:Digital Temp Sensor 2-Wire,LM75ADP |
| LM75ADP,118 | 功能描述:板上安装温度传感器 TEMP SENSOR DIGITAL 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 |
| LM75ADP,118 | 制造商:NXP Semiconductors 功能描述:IC, TEMP SENSOR, 0.125C, 3C, TSSOP-8 |
| LM75ADP,118-CUT TAPE | 制造商:NXP 功能描述:LM75A Series SMD 5.5 mA Digital Temperature Sensor w/ Thermal Watchdog TSSOP-8 |
| LM75ADP/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 |
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