SE95是一款温度-数字转换器,使用片上带隙温度传感器和Σ-Δ模拟至数字转换技术。该器件还是一款热检测器,提供过热检测输出。
SE95包含一系列数据寄存器,可通过2线串行I²C总线接口由控制器进行访问:
该器件包含一个在温度超过编程极限时变为有效的开漏输出(引脚OS)。共有三个可选逻辑地址引脚(引脚A2至A0),因此可在同一总线上连接八个器件而不会发生地址冲突。
SE95可为不同的工作条件进行配置。可将其设为正常模式以定期监视环境温度,或设为关断模式以使功耗最小化。OS输出工作于两个可选模式之一中:OS比较器模式和OS中断模式。其有效状态可选为高电平或低电平。定义连续故障数以激活OS输出的故障队列以及设置点极限均为可编程。
温度寄存器始终储存温度分辨率为0.03125 Cel的13位二进制补码数据。此高温度分辨率在精确测量热漂移或热逃逸的应用中特别有用。为了与LM75A进行正常工作并兼容,仅读取11 MSBs,以0.125 Cel的分辨率提供指定的精度。为了兼容LM75,仅读取9 MSBs。
该器件上电时处于正常工作模式,即OS处于比较器模式、温度阈值为80 Cel且滞后为75 Cel,因此可用作带有那些预定义温度设置点的独立恒温器。可对转换速率进行编程,默认为10个转换/秒。
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型号 | 可订购的器件编号 | 订购码 (12NC) | 产品状态 | 封装 |
SE95D | 9352 741 41118 | SE95D,118 | 量产 | SO8 (SOT96-1) |
SE95D | 9352 741 41112 | SE95D,112 | 量产 | SO8 (SOT96-1) |
型号 | 订购码 (12NC) | 可订购的器件编号 | 化学成分 |
SE95D | 9352 741 41118 | SE95D,118 | SE95D |
SE95D | 9352 741 41112 | SE95D,112 | SE95D |
档案名称 | 标题 | 类型 | 格式 |
SE95D | Ultra high accuracy digital temperature sensor and thermal watchdog | Data sheet | |
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AN10441 | Level shifting techniques in I2C-bus design | Application note | |
AN255 | I2C / SMBus Repeaters, Hubs and Expanders | Application note | |
AN10710 | Features and applications of the SE95 I2C-bus extender | Application note | |
75016527 | Extend standard I2C-bus devices without worrying about offset voltages; NXP I2C-bus extender SE95 in a proven application | Brochure | |
75016532 | Extend the I2C-bus with advanced repeaters and hubs; NXP 2-channel I2C-bus repeaters SE95x and 5-channel I2C-bus hubs PCA9516x | Leaflet | |
75016080 | Extend the reach of any I2C-bus system without special offset voltage levels; NXP I2C-bus extender SE95 | Leaflet | |
75017424 | NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concerns | Leaflet | |
UM10204 | I2C-bus specification and user manual | User manual | |
UM10206 | I2C Demonstration Board 2005-1 Quick Start Guide | User manual | |
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