WMSIC Electronic Components

PCA9633DP1,118 PCA9633DP1

ModelPCA9633DP1,118
PackageTSSOP-8-3mm
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 PCA9633DP1, 118
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
PCA9633DP1,118
Electronic Component
1
Package
TSSOP-8-3mm
Type
DC-DC
Electronic Component
LEDDriver
Electronic Component
PWM; Analog
Electronic Component
0.577g
Electronic Component
1
Channel Count
4
Electronic Component
BM0257379961
Operating Temperature
40℃~+85℃
Switching Frequency
1MHz
Output Voltage
5.5V
Output Current
25mA

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

PCA9633DP1,118 产品概述

一、产品简介

PCA9633DP1,118 是恩智浦(NXP)推出的一款四通道 LED 驱动器 IC,面向指示灯、面板指示、背光与状态显示等低功耗照明场景。器件工作电压范围为 DC 2.3V~5.5V,单通道输出电流可达 25mA,支持 PWM 与模拟调光,适合对亮度与色彩有独立控制需求的小型照明应用。

二、核心参数概览

  • 工作电压(DC):2.3V ~ 5.5V
  • 开关频率:1MHz
  • 通道数:4(独立输出)
  • 单通道输出电流:25mA(最大)
  • 调光方式:PWM 调光;模拟调光输入
  • 工作温度:-40℃ ~ +85℃
  • 封装:TSSOP-8(3mm 宽)

三、功能与特性

  • 四路独立恒流/开关输出,适用于单色或多点指示灯驱动。
  • 支持 PWM 调光,实现高分辨率亮度控制与动态效果;同时提供模拟调光接口,方便与模拟信号或外部 DAC 联动。
  • 1MHz 的开关频率可降低电感/滤波器尺寸(若器件内部集成开关架构),有利于空间受限的 PCB 设计。
  • 宽电源电压范围适配 1 芯至 3 芯锂电池及 3.3V/5V 系统电源,适应多平台供电需求。
  • 工业级温度范围(-40℃~+85℃),可靠性较高,可用于工业与消费类产品。

四、典型应用场景

  • 面板指示灯与状态灯(网络设备、家电、仪器面板)
  • 仪表与显示器局部背光
  • 消费电子指示与装饰灯(路由器、机顶盒、智能家居设备)
  • 低功耗可穿戴与电池供电设备的指示驱动

五、设计与使用建议

  • 电源去耦:在 VCC 引脚附近放置 0.1µF 陶瓷电容并靠近封装焊盘,抑制电源噪声并改善瞬态响应。
  • 布局:4 路输出产生的热量集中时,建议在 PCB 下层增加铜箔散热并保留过孔以导热,保证高温环境下的稳定输出。
  • PWM 调光:选择合适的 PWM 频率与占空比,避免在可见频段产生闪烁;使用外部滤波实现平滑模拟亮度过渡时注意滤波时间常数与响应速度的平衡。
  • 电流限制与保护:尽量在器件规格范围内设置输出电流,若外部 LED 驻流点变化大,可在设计中加入限流或短路保护方案。
  • 接地与屏蔽:保持数字/模拟地良好分割与单点连接,避免 PWM 开关噪声耦合到敏感模拟通道。

六、封装与环境适配

PCA9633DP1,118 提供 TSSOP-8(3mm)小体积封装,适配空间受限的系统。器件在 -40℃ 到 +85℃ 的工业温度范围内保证参数稳定,适合室内与部分室外低严苛环境应用。焊接工艺应遵循厂家推荐回流曲线,防止过热影响可靠性。

七、注意事项

  • 在高占空比或高环境温度下,需关注器件结温,必要时降额使用或增加散热措施。
  • 使用模拟调光时,信号源阻抗与滤波网络会影响响应与线性度,请在系统级做验证。
  • 选型时确认最终应用对 EMC、瞬态抗扰和电磁辐射的要求,必要时配合滤波与屏蔽设计。

总结:PCA9633DP1,118 是一款面向低功耗、空间受限应用的四通道 LED 驱动器,具备 PWM 与模拟调光能力、宽电源范围与工业温度等级,适合需要独立亮度控制的照明与指示场景。在实际设计中注意电源去耦、热管理与 PWM 参数优化,可获得稳定且高质量的驱动效果。

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