WMSIC Electronic Components

MICROCHIP MCP9808T-E/MC MCP9808T

ModelMCP9808T-E/MC
PackageDFN-8-EP(2x3)
BrandMICROCHIP
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
MICROCHIP MCP9808T-E / MC
Type
MICROCHIP
Unit
Electronic Component
Minimum package
3300 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
MCP9808T-E/MC
Electronic Component
1
Package
DFN-8-EP(2x3)
Electronic Component
Temperature Sensor
Electronic Component
±0.5℃
Electronic Component
0.7g
Electronic Component
1
Features
Comparator / Output; Output; Low Power
Electronic Component
BM0227752434
Operating Voltage
2.7V~5.5V
Interface Type
I2C;SMBus
Electronic Component
40℃~+125℃
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

MCP9808T-E/MC 产品概述

一、产品简介

MCP9808T-E/MC 是 MICROCHIP(美国微芯)推出的一款高精度数字温度传感器,测温范围覆盖 -40℃ 至 +125℃,在全量程内提供 ±0.5℃ 的典型精度(注:以器件规格表为准)。器件采用 DFN-8-EP (2×3 mm) 封装,带裸露散热焊盘,适合空间受限且对热响应有要求的应用场景。该器件通过 I2C / SMBus 接口进行通信,工作电压范围 2.7V 至 5.5V,典型温度转换时间 250 ms,易于系统集成与标定。

二、主要特性(要点)

  • 温度测量范围:-40℃ ~ +125℃
  • 精度:±0.5℃(典型或规格表标称)
  • 工作电压:2.7V ~ 5.5V,单电源供电
  • 接口类型:I2C / SMBus(数字输出,便于微控制器直接读取)
  • 温度转换时间:约 250 ms(单次测量)
  • 封装:DFN-8-EP(2×3 mm,带裸露散热焊盘)
  • 品牌:Microchip(美国微芯)

三、封装与热管理建议

  • DFN-8-EP 带裸露散热焊盘,有利于器件与 PCB 间的热耦合,从而保证测温响应速度与稳定性。
  • 推荐在裸露焊盘下方增加热通孔(via)并引至内部或背面铜层,以改善散热性能(但要控制铜层热容以免影响测量目标)。
  • 对于测量环境温度,应避免将器件直接放置于大功率器件附近,以免寄生加热带来测量误差。

四、接口与电气注意事项

  • I2C/SMBus 总线需配置上拉电阻,且上拉电阻应连接至传感器工作电压(Vdd)以保证通信可靠性。
  • 电源端建议在 Vdd 近端并联 0.1 μF 旁路电容,降低电源纹波对测量的影响。
  • 器件提供低功耗模式与连续测量模式,可根据系统功耗与响应要求选择工作方式。
  • 在多器件环境下,可通过地址配置(器件实体地址引脚或配置寄存器)实现总线上的多节点识别。

五、典型应用场景

  • 工业控制与过程监测(高/低温环境下的温度采集)
  • 数据中心与服务器热管理(散热监控与风扇调节)
  • 电源与电池管理系统(单体或电池组温度采样)
  • 医疗设备、消费电子、智能家居与物联网终端(需要高精度温度检测的场合)

六、设计与选型建议

  • 若系统对测量精度与响应速度要求高,优先使用带裸露焊盘的 DFN 封装并优化 PCB 热通路。
  • 在布局上尽量将传感器放置于待测点附近,同时远离高功耗器件和热源;必要时可使用热隔离或绝热措施。
  • 订购时确认芯片批次、湿敏等级(MSL)与 RoHS 符合性,生产制程(回流焊曲线)按厂商建议执行,以保证焊接可靠性。
  • 开发时参考 Microchip 提供的应用笔记与寄存器手册,合理配置报警阈值、分辨率与功耗策略。

总结:MCP9808T-E/MC 以小尺寸封装、宽幅电压与通信兼容性、以及在工业级温度范围内的高精度表现,适合对空间、功耗与测温精度均有严格要求的嵌入式与工业应用。请以 Microchip 官方数据手册为最终规格参考,并依据实际系统需求进行 PCB 与热设计验证。

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