WMSIC Electronic Components

MICROCHIP TC77-3.3MCTTR TC77

ModelTC77-3.3MCTTR
PackageSOT-23-5
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 Date code within 2 years

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
MICROCHIP TC77-3.3MCTTR
Type
MICROCHIP
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
TC77-3.3MCTTR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Temperature Sensor
Electronic Component
±1℃
Electronic Component
0.043g
Electronic Component
1
Features
Low Power
Electronic Component
BM0228695522
Operating Voltage
2.7V~5.5V
Current
1uA
Interface Type
SPI
Electronic Component
55℃~+125℃

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

TC77-3.3MCTTR 产品概述

一、概述

TC77-3.3MCTTR 是美国微芯(Microchip)推出的一款高精度、低功耗的数字温度传感器,封装为 SOT-23-5,适合空间受限和便携式应用。器件通过 SPI 串行接口直接输出数字温度数据,无需外部 ADC 或复杂校准,便于与单片机或嵌入式系统对接。器件工作电压范围宽(2.7V–5.5V),待机电流极低(1 μA),在工业级温度范围(-55℃~+125℃)内可实现 ±1℃ 精度,适合对成本、功耗与精度有综合要求的系统。

二、主要特性

  • 温度测量范围:-55℃ 到 +125℃
  • 测量精度:±1℃(典型或应用要求中给定)
  • 温度分辨率:13-bit 数字输出,细粒度温度步进
  • 工作电压:2.7V 至 5.5V,兼容 3.3V/5V 系统
  • 待机电流:约 1 μA,适合电池供电或低功耗系统
  • 接口类型:SPI 兼容串行接口,便于与主控通信
  • 温度转换时间:约 300 ms(一次转换时延)
  • 封装:SOT-23-5,小巧表贴封装,便于批量组装

三、典型应用

  • 电池供电与便携式设备的环境/电池温度监测
  • 工业控制与过程监测(机柜、控制板温度保护)
  • 通信设备与基站模块的热管理
  • 电源管理与电池管理系统(BMS)中的温度采样
  • 消费类电子、家用电器、暖通空调(HVAC)等需要可靠温度测量的场景

四、设计与使用建议

  1. 电源与去耦:为保证测量稳定性,建议在 VCC 与 GND 之间放置一个 0.1 μF 的陶瓷去耦电容,靠近器件引脚布局,以滤除电源噪声和瞬态干扰。
  2. 接口和时序:器件使用 SPI 兼容接口进行读出。具体时序、时钟极性/相位(CPOL/CPHA)及最大通信速率请参照官方数据手册,设计时根据主控的 SPI 配置进行匹配。
  3. 供电与启动:在电源上电或复位后,给器件一定的稳定时间再开始温度采集。器件一次温度转换约需 300 ms,第一次读数建议在转换完成后获取以确保数据有效。
  4. 低功耗工作:若系统对功耗敏感,可采用间歇采样策略(例如按需触发转换并在非测量期间保持待机),利用 1 μA 的待机电流延长电池寿命。
  5. 温度补偿与布局:避免将传感器放置于靠近大功率器件或热源(如稳压器、功率 MOSFET)之处,以免测量值被局部热流扭曲。在 PCB 上尽量使用短且宽的走线,减少热耦合和导热误差。

五、封装与机械信息

TC77-3.3MCTTR 采用 SOT-23-5 小型表贴封装,适合密集 PCB 布局与自动化贴装。该封装在空间受限的工业与消费类产品中具有良好兼容性。实际布局时注意器件的热路径和周边器件发热对测温精度的影响,必要时可做热隔离或采用导热孔/散热策略以获得更准确的环境温度测量。

六、优势要点

  • 宽工作电压与低待机电流:支持 2.7V–5.5V 电源并有 1 μA 待机电流,适合多种供电方案和低功耗设计。
  • 高精度与高分辨率:±1℃ 精度配合 13-bit 分辨率,能够满足多数工业与消费级温度监控需求。
  • 简单可靠的数字接口:SPI 接口直接输出数字温度值,简化主控处理和软件校准工作。
  • 小尺寸封装:SOT-23-5 带来良好的尺寸与成本优势,便于批量生产和空间受限应用。

七、采购与替代建议

  • 型号:TC77-3.3MCTTR(Microchip 标准型号,具体包装与最小起订量请参考供应商报价)
  • 替代件选择时,请关注温度范围、精度、接口方式、功耗和封装尺寸等匹配要点;若需更高精度或更短响应时间,可查阅 Microchip 或其他厂商的高精度数字温度传感器系列,并对比电气特性与时序差异。
  • 订购与技术细节请以 Microchip 官方数据手册为准,数据手册中包含引脚定义、时序图、电气特性曲线和典型应用电路,便于工程设计与验证。

如需进一步的电气特性曲线、引脚功能、典型时序或参考电路图,我可以基于数据手册为您整理关键信息与布局建议。

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