WMSIC Electronic Components

PCA9552PW,118 PCA9552PW

ModelPCA9552PW,118
PackageTSSOP-24
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
NXP PCA9552PW, 118
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
PCA9552PW,118
Electronic Component
1
Package
TSSOP-24
Electronic Component
LEDDriver
Electronic Component
I2C
Electronic Component
0.16g
Electronic Component
1
Channel Count
16
Electronic Component
BM0257367745
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.

PCA9552PW,118 产品概述

一、简介

PCA9552PW,118 是恩智浦(NXP)推出的一款 16 通道 LED 驱动器 IC,采用 TSSOP-24 封装,面向需要集中、可编程调光控制的各类照明与指示灯应用。器件工作电压范围为 DC 2.3V ~ 5.5V,支持 I²C 总线通信(最高速率 400kHz),单通道最大输出电流可达 25mA,工作温度范围为 -40℃ ~ +85℃,适合工业与消费类产品的常规温度场景。

二、主要特性

  • 16 个独立输出通道,集中驱动多颗 LED 或 LED 阵列。
  • 通过 I²C 接口进行配置与调光控制,支持快速模式(400kHz)。
  • 单通道最高输出电流 25mA(实际使用请参考器件热功耗与并行通道限制)。
  • 宽输入电压:2.3V ~ 5.5V,兼容常见单芯片或系统电源。
  • 工作温度范围 -40℃ ~ +85℃,TSSOP-24 小外形封装,便于 PCB 布局与空间受限设计。
  • 可编程的亮度控制,简化 MCU 与驱动逻辑的设计。

三、工作方式与控制

PCA9552 通过标准 I²C 命令对内部寄存器进行读写,实现对各输出通道的开/关与亮度控制。典型的应用中,MCU 通过 I²C 总线直接下发亮度值或模式参数,从而完成单通道或多通道的渐变、闪烁与分组调光。I²C 最大 400kHz 的通讯速率能够满足多数实时显示与指示灯控制的响应需求。

四、封装与引脚布局

器件采用 TSSOP-24(24 引脚窄体塑封)封装,占板面积小,便于高密度器件排布。常见引脚包括电源 (VCC/GND)、I²C 接口(SDA/SCL)、多个 LED 输出引脚及必要的模式/地址选择引脚(具体引脚定义请参阅官方数据手册)。

五、设计要点与注意事项

  • 电源与去耦:在 VCC 引脚近旁放置合适的去耦电容(例如 0.1µF 与 1µF 并联),降低电源噪声对调光稳定性的影响。
  • 热管理:在多通道同时大电流工作时,器件功耗显著上升。应评估 PCB 散热、铜箔面积与环境温升,必要时降低并发通道电流或采用散热措施。
  • 电流与 LED 匹配:根据 LED 正向电压和亮度需求,合理设置驱动电流;若使用外部限流方式或串联/并联布局,请遵循数据手册推荐设计。
  • 布线与 EMI:SDA/SCL 线应避免长距离并与高频开关信号并行,必要时增加上拉电阻与滤波措施,保证 I²C 总线可靠通信。
  • 上电复位与地址配置:注意器件上电时序与地址脚的硬件配置,以免与系统中其他 I²C 器件地址冲突。

六、典型应用场景

  • 仪表与面板背光模块(工业设备、医疗仪器、通信设备)。
  • 消费类电子的状态指示与按键背光(家电、智能家居)。
  • 小型显示与信号灯阵列(指示灯板、标识牌)。
  • 需要集中可编程亮度控制的 IoT 与嵌入式设备。

七、采购与参考资料

订购型号:PCA9552PW,118(NXP),封装 TSSOP-24。设计与选型时请以 NXP 官方数据手册为准,参考其电气特性、引脚定义、典型应用电路与 PCB 布局建议。如需样片测试,建议结合评估板或参考设计进行验证。

如需我帮您梳理基于该器件的典型电路、布局建议或并联多通道热分析,我可以基于具体应用场景给出更详细的工程建议。

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