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MPR121QR2
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- NXP MPR121QR2
- Type
- NXP
- Minimum package
- 1000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- MPR121QR2
- Electronic Component
- 1
- Package
- QFN-20(3x3)
- Electronic Component
- Touch Controller IC
- Electronic Component
- 0.116g
- Electronic Component
- 1
- Channel Count
- 12
- Features
- Proximity; Integrated ADC;; Integrated LEDDriver; Capacitor
- Electronic Component
- BM0257342606
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.71V~3.6V
- Operating Current
- 29uA
- Static Current
- 3uA
- 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.
MPR121QR2 产品概述
一、概要
MPR121QR2 是恩智浦（NXP）推出的一款高集成度电容式触摸控制芯片，支持最多12路电极输入，能实现按键、滑块和拨轮等多种触控交互。芯片工作电压范围为1.71V至3.6V，工作温度覆盖-40℃至+85℃，适用于消费类、家电、工业控制等对触摸响应和低功耗有要求的终端。
二、主要特点
- 12通道电容式触摸检测，支持多点布局用于按键、线性滑块或环形拨轮实现手势/位置检测。
- 低功耗设计：活动工作电流约29 μA，静态/待机电流约3 μA，适合电池供电场景。
- 宽工作电压范围：1.71V ~ 3.6V，兼容常见单节锂电/3.3V系统。
- 环境适应性强：工作温度-40℃~+85℃。
- 抗静电能力：静电保护等级约2 kV，提升可靠性与长期稳定性。
- 小封装：QFN-20（3x3 mm），利于空间受限的系统集成。
三、电气与接口（要点）
芯片以低功耗为设计核心，持续监测电容电极变化并在触发时输出事件。典型应用中与主控通信、阈值配置及中断管理是关键环节（具体总线与引脚功能请参阅官方数据手册以获得完整定义与时序说明）。
四、功能与配置能力
MPR121QR2 提供灵活的阈值与滤波参数可调节，支持去抖动、基线追踪与环境补偿以适应湿度与温度变化。可配置为多种触控模式（单键、组合键、滑块/拨轮映射），并具备中断输出以减少主控轮询、降低系统整体功耗。
五、典型应用场景
适用于触摸亮度控制、家电面板、音响按键、便携设备人机界面、工业控制面板等，尤其适合需要节省空间和延长电池寿命的产品。
六、封装与设计注意事项
QFN-20（3x3 mm）小尺寸便于板级集成，但在布局时需注意电极连线、接地平面与旁路电容布置以保证信号完整性与抗干扰能力。实际设计前建议阅读参考设计与应用笔记，进行板级调试以确定最佳阈值与滤波参数。
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