WMSIC Electronic Components

PCA9533DP/01,118 PCA9533DP

ModelPCA9533DP/01,118
PackageTSSOP-8
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

19 specifications

Core information

Product name
NXP PCA9533DP / 01, 118
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
PCA9533DP/01,118
Electronic Component
1
Package
TSSOP-8
Electronic Component
LEDDriver
Electronic Component
PWM;I2C
Electronic Component
0.236g
Electronic Component
1
Channel Count
4
Electronic Component
BM0263483783
Operating Temperature
40℃~+85℃
Switching Frequency
400kHz
Output Current
25mA
Operating Voltage(DC)
2.3V~5.5V
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.

PCA9533DP/01,118 4通道LED驱动器IC产品概述

PCA9533DP/01,118是恩智浦(NXP)推出的一款4通道线性LED驱动器IC,专为需要精准调光控制、低功耗且空间受限的LED指示/照明应用设计。该器件集成I2C/SMBus通信接口,支持远程控制每个通道的开关与亮度,兼具宽电压范围、工业级温度适应性等特点,是工业设备、消费电子等人机界面场景的理想选择。

一、产品定位与核心特性

PCA9533DP/01,118定位于低成本、高集成度的LED驱动解决方案,核心特性包括:

  1. 4个独立LED驱动通道,支持单通道或多通道同步控制;
  2. 集成I2C/SMBus通信接口,兼容标准I2C协议,支持多设备级联;
  3. 线性调光模式,无开关噪声,适合对EMI敏感的应用场景;
  4. 宽直流工作电压范围(2.3V~5.5V),适配3.3V、5V等常见MCU供电;
  5. 小尺寸TSSOP-8封装,占用PCB面积极小,适合高密度设计;
  6. 工业级工作温度(-40℃~+85℃),满足极端环境下的稳定运行。

二、关键参数与性能指标

该器件的核心参数完全覆盖目标应用的需求,具体如下:

  • 工作电压:DC 2.3V~5.5V(覆盖多数嵌入式系统供电,无需额外电平转换);
  • 通道数:4个独立输出通道,可同时驱动4个LED;
  • 输出电流:单通道最大输出电流25mA(满足小功率LED指示需求,如指示灯、状态灯);
  • 通信频率:支持400kHz快速I2C模式,数据传输效率高;
  • 调光精度:每个通道支持8位线性调光(亮度调节范围0~100%);
  • 工作温度:-40℃~+85℃(工业级温度范围,适用于户外、车间等场景);
  • 封装:TSSOP-8(引脚间距0.65mm,尺寸约3.0mm×3.0mm,PCB布线灵活)。

三、通信与控制接口设计

PCA9533DP/01,118采用I2C/SMBus接口实现远程控制,具有以下优势:

  1. 地址配置灵活:通过A0、A1两个地址引脚,可设置4种不同设备地址,支持最多4个器件级联,扩展LED通道数量;
  2. 调光控制精准:每个通道内置8位调光寄存器,可通过I2C指令线性调节亮度(从全暗到全亮),无需外部PWM电路;
  3. 低功耗通信:I2C接口待机电流极低,对系统整体功耗影响小;
  4. 兼容性强:兼容标准I2C主设备(如MCU、FPGA),无需特殊驱动设计。

四、典型应用场景

该器件适用于对空间、功耗、调光精度有要求的LED指示场景,典型应用包括:

  1. 工业设备状态指示:PLC、变频器、传感器模块的LED状态灯(如电源、运行、故障指示);
  2. 消费电子人机界面:遥控器、小家电(如加湿器、咖啡机)的LED功能指示灯;
  3. 通信设备指示灯:路由器、交换机、光模块的端口状态指示;
  4. 智能家居控制端:智能开关、温控器的LED反馈指示;
  5. 车载内饰辅助指示:车载中控、仪表盘的辅助状态灯(需确认符合车载EMC标准)。

五、封装与可靠性设计

PCA9533DP/01,118采用TSSOP-8封装,具有以下可靠性优势:

  • 小体积高密度:TSSOP-8封装相比DIP封装体积减少约70%,适合小型化产品设计;
  • 宽温适应性:-40℃~+85℃的工作温度范围,满足工业环境的高低温波动;
  • ESD防护:内置ESD保护电路,符合IEC 61000-4-2标准,提升抗静电能力;
  • NXP品质保障:恩智浦的成熟工艺与严格测试,确保长期稳定运行(MTBF符合工业级要求)。

六、典型应用电路说明

典型应用电路仅需少量外部元件,核心连接如下:

  1. 电源与地:VCC引脚接2.3V~5.5V直流电源,GND引脚接地;
  2. I2C接口:SDA(数据线)、SCL(时钟线)分别连接MCU的I2C引脚,需串联1kΩ~10kΩ上拉电阻(与系统I2C总线匹配);
  3. 地址引脚:A0、A1引脚可接VCC或GND,设置设备地址(如A0=GND、A1=GND时地址为0x48);
  4. LED驱动:每个OUTx(x=0~3)引脚串联一个限流电阻(如25mA输出时,R=(VCC - Vf_LED)/25mA,Vf_LED为LED正向压降,通常取2V左右),再连接LED到地。

该电路无需额外驱动电路,可直接由MCU通过I2C指令控制每个LED的开关与亮度,设计简单高效。

综上,PCA9533DP/01,118凭借高集成度、灵活控制、宽适应性等特点,成为LED指示类应用的高性价比解决方案,适用于工业、消费电子等多领域的产品设计。

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