WMSIC Electronic Components

PCA9614DPZ

ModelPCA9614DPZ
PackageMSOP-10
BrandNXP
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
NXP PCA9614DPZ
Type
NXP
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
PCA9614DPZ
Electronic Component
1
Package
MSOP-10
Type
Driver; Buffer
Electronic Component
Signal Buffer / Repeater / Distributor
Electronic Component
0.054g
Electronic Component
1
Channel Count
2
Features
Level Conversion
Electronic Component
BM0265872432
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V;2.3V~3V
Electronic Component
150ns

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

PCA9614DPZ I2C总线中继器产品概述

PCA9614DPZ是恩智浦(NXP)推出的高性能I2C/SMBus总线中继器(Redriver),专为解决I2C总线长距离传输、多负载连接的信号衰减与时序问题设计,具备双独立通道、宽电压兼容、工业级可靠性等核心优势,广泛适用于工业自动化、消费电子、医疗设备等领域。

一、产品核心定位与功能

I2C总线作为两线式串行通信接口,因开漏输出结构存在传输距离有限(常规<1m)、负载数量受限(常规<10个) 的问题,当系统需要连接多传感器、长距离外设时,信号衰减会导致通信失败。PCA9614DPZ通过中继放大I2C的SCL(时钟)和SDA(数据)信号,实现:

  • 延长总线传输距离至3~5m(根据负载调整);
  • 增加可连接I2C从设备数量至20+个;
  • 跨电压域通信(支持2.3V~5.5V不同电压系统交互);
  • 两路独立I2C总线并行处理,避免通道干扰。

二、关键参数解析

PCA9614DPZ的核心参数匹配工业与消费电子实用需求,具体如下:

参数项 典型值/范围 说明 总线类型 I2C/SMBus 2线式 兼容标准(100kHz)、快速(400kHz)模式 通道数 2个独立通道 两路总线互不干扰 工作电压范围 2.3V~5.5V 覆盖低功耗MCU(2.3~3.6V)与5V系统 信号延迟时间 150ns(典型值) 不影响I2C时序,适配高速通信 输入电容 7pF(典型值) 低输入电容,不额外增加总线负载 工作温度范围 -40℃~+85℃ 工业级温度,适应 harsh环境 封装 10-TFSOP(10-MSOP) 0.118英寸(3.00mm)宽,体积紧凑

三、核心优势与设计亮点

1. 宽电压兼容,跨域通信无压力

支持2.3V~5.5V全电压范围,可直接连接不同电压域的I2C设备:例如2.3V低功耗MCU与5V传感器模块,无需额外电平转换芯片,简化电路设计。

2. 双独立通道,并行处理多总线

两路I2C通道完全独立,可同时处理不同任务:比如一路连接温度传感器网络,另一路连接存储芯片,避免总线冲突,提升通信效率。

3. 低延迟与低功耗,适配高速与电池设备

  • 150ns延迟远小于I2C时钟周期(400kHz模式下周期2.5μs),不影响高速通信;
  • 静态电流<1μA(典型值),适合电池供电的便携设备(如手持医疗仪器)。

4. 工业级可靠性,抗干扰能力强

工作温度覆盖-40℃~+85℃,内置噪声抑制电路,有效减少工业环境EMI干扰,保证通信稳定性。

四、典型应用场景

1. 工业自动化领域

  • PLC传感器扩展:车间内多台温度、压力传感器通过中继器延长总线至控制器,解决长距离通信问题;
  • 工业机器人外设管理:关节传感器、执行器的I2C总线中继,增加负载数量。

2. 消费电子领域

  • 智能家居系统:多个I2C控制的智能灯、门锁、传感器通过中继器扩展,实现全屋I2C网络覆盖;
  • 电视/机顶盒外设:外接I2C存储、摄像头模块,延长总线距离。

3. 医疗设备领域

  • 小型医疗仪器:血糖仪、血压计的多传感器I2C通信,紧凑封装适配设备小型化;
  • 监护仪:多参数传感器(心率、血氧)的I2C总线中继,保证数据实时传输。

4. 通信设备领域

  • 路由器/交换机管理总线:扩展I2C管理芯片数量,实现多模块状态监控。

五、设计注意事项

  1. 上拉电阻配置:每路SCL/SDA需配置1k~10kΩ上拉电阻(长距离选小阻值);
  2. 电源滤波:电源引脚并联0.1μF陶瓷电容滤波,避免噪声干扰;
  3. 通道隔离:两路I2C通道需独立布线,避免交叉;
  4. ESD防护:总线引脚增加ESD保护二极管,防止静电损坏。

六、总结

PCA9614DPZ作为恩智浦经典I2C中继器,以双通道扩展、宽电压兼容、工业级可靠性为核心,解决了I2C总线长距离、多负载的通信瓶颈,是工业、消费电子、医疗等领域优化I2C通信的理想选择。其紧凑封装与低功耗设计,也适配现代电子设备的小型化、便携化需求。

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