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PCA9634PW,118 PCA9634PW
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- NXP PCA9634PW, 118
- Type
- NXP
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- PCA9634PW,118
- Electronic Component
- 1
- Package
- TSSOP-20
- Electronic Component
- LEDDriver
- Electronic Component
- PWM; Analog
- Electronic Component
- 0.207g
- Electronic Component
- 1
- Channel Count
- 8
- Electronic Component
- BM0231111223
- Operating Temperature
- 40℃~+85℃
- Switching Frequency
- 25MHz
- Output Voltage
- 5.5V
- Output Current
- 25mA
- Operating Voltage(DC)
- 2.3V~5.5V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PCA9634PW,118 产品概述
一、产品简介
PCA9634PW,118 是恩智浦（NXP）推出的一款 8 路 LED 驱动器 IC，采用 TSSOP-20 封装，面向需要多路可控亮度的照明与指示应用。器件工作电压范围为 DC 2.3V～5.5V，单通道输出电流可达 25mA，内部集成开关管，支持通过 I²C 总线进行亮度与开关控制，提供 PWM 与模拟调光功能，器件工作温度范围为 -40℃～+85℃。
二、主要功能与性能要点
- 通道数：8 路独立输出，可分别控制每一路 LED 的开/关与亮度。
- 调光方式：支持 PWM 调光与模拟调光，便于实现高分辨率亮度控制与平滑渐变效果。
- 输出能力：单通道最大输出电流 25mA，输出电压最高可达 5.5V；适合中小功率指示灯与背光驱动。
- 开关管：内部集成开关晶体管，简化外部功率器件设计与板上空间占用。
- 通信接口：I²C 总线编程控制，便于与 MCU 集成与级联扩展。
- 开关频率：25MHz（内部或开关相关频率），有利于实现高频调制与降低可感噪声。
- 工况适应性：宽工作电压与宽温度范围，适合工业与消费级环境。
三、典型应用场景
- 仪表与面板指示灯驱动：多路独立控制，适合控制状态指示与警示灯。
- 显示与按键背光：键盘、显示边缘/区域背光的分段调光与关断。
- 消费电子：遥控器、手持设备与家电指示灯控制。
- 工业控制：需要可靠工作温度与电压裕度的指示/信号灯驱动方案。
四、封装与系统集成
PCA9634PW 提供 TSSOP-20 封装，便于小型化 PCB 布局。设计时建议在电源引脚处放置适当的去耦电容，I²C 总线侧使用合适的上拉电阻，并注意信号线与开关输出的走线分离以降低干扰。若需要更大输出电流或更高电压驱动，应在输出端级联外部功率级或选择更高功率器件。
五、选型建议与注意事项
- 如果目标应用需要超过 25mA 的驱动能力，应评估外置开关管或功率放大方案；若要求更高通道数，可考虑级联或更高集成度的同类器件。
- 高速开关或高频 PWM 工作时，注意电磁兼容与散热设计；在高温环境下检查器件热降额。
- I²C 总线多设备连接时，合理设定地址与上拉电阻，避免总线冲突。
- 评估系统上电顺序与短路保护需求，必要时增加保护电路以提升可靠性。
PCA9634PW,118 以其多通道、I²C 可编程调光与内置开关的集成特性，为需要紧凑、可控 LED 阵列的产品提供实用的驱动解决方案。
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