WMSIC Electronic Components

LITEON LTR-329ALS-01

ModelLTR-329ALS-01
PackageVDFN-4
BrandLITEON
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LITEON LTR-329ALS-01
Type
LITEON
Minimum package
3500 卷

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTR-329ALS-01
Electronic Component
1
Electronic Component
2mm
Package
VDFN-4
Electronic Component
Ambient Light Sensor
Electronic Component
0.03g
Electronic Component
2mm
Resolution
16bit
Electronic Component
1
Features
Built-in; /; Gain Control; Low Power
Electronic Component
BM0230898826
Operating Temperature
30℃~+70℃
Operating Voltage
2.4V~3.6V
Electronic Component
64klx

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

LTR-329ALS-01 产品概述

一、产品简介

LTR-329ALS-01 是台湾光宝(LITEON)推出的一款环境光强感测器(Ambient Light Photo)。该器件面向消费类与工业类终端,用于测量环境照度并为显示器背光、按键背光、相机曝光或省电策略等功能提供精确光强信息。器件体积小、接口简单、功耗低,适合手机、平板、可穿戴和物联网终端等空间受限的应用。

二、主要参数

  • 感测类型:环境光(光强感测)
  • 感光能力:最高可测 64 klx(64,000 lux)
  • 分辨率:16 bit(理论量化阶数 2^16)——按量程线性计算,理论步进约 1 lux 量级(参考量程与校准见原厂资料)
  • 接口类型:I2C(标准串行总线,便于与 MCU/SoC 连接)
  • 工作电压:2.4 V ~ 3.6 V(支持单节锂电池供电及常见 3.3 V 系统)
  • 工作温度:-30 ℃ ~ +70 ℃
  • 品牌与封装:LITEON(台湾光宝),封装为 VDFN-4(小型四引脚扁平封装)

三、封装与机械特性

VDFN-4 小型封装有利于在 PCB 上实现紧凑布局,适合空间受限的便携设备。实际布局时建议参考厂商封装和焊盘推荐尺寸以保证焊接可靠性与光学取样一致性。器件顶面是感光窗口或晶片裸露区域,覆盖材料与外壳设计会影响最终系统的光学响应。

四、接口与集成建议

  • I2C 接口:采用标准 SDA/SCL 信号线,设计时应在板级增加合适阻值的上拉电阻(典型值 2.2kΩ~10kΩ,视系统总线速度与电容决定)。
  • 电源滤波:建议在 VCC 近端放置 0.1 μF 陶瓷去耦电容,必要时加大滤波电容以抑制噪声。
  • 校准与线性:器件通常经过出厂校准,但在对颜色/人眼响应有严格要求的系统中,建议做系统级校准或使用透光片/滤光片修正。
  • 机械安装:避免器件正对直射强光源或靠近高反射面,应在箱体位置做遮光设计以获得稳定读取。
  • ESD 与焊接:按常规元件防静电措施处理,参考厂商回流焊曲线与湿敏等级进行贴装与保存。

五、典型应用场景

  • 智能手机、平板与可穿戴设备的自动亮度调节
  • 显示器与电视背光控制节能方案
  • 智能家居与照明系统中的环境监测
  • 摄像头/相机的曝光辅助、光线检测
  • 工业仪表与车载设备的环境光检测(在温度与电压范围允许下)

六、设计注意事项与可靠性

  • 温度与漂移:工作温度范围为 -30 ℃ 至 +70 ℃,超出该范围可能导致读数偏移或器件失效;高温长期工作会影响稳定性,应在系统热设计中考虑。
  • 光谱响应:若需严格符合人眼光谱响应(Vλ),应参考厂商提供的响应曲线并在软件中做校正。
  • 动态范围管理:面对极暗或极亮环境,可通过软件滤波与多次采样提高精度与抗干扰能力。
  • 供电稳定性:在电池供电场景下注意掉电恢复时序与 I2C 总线状态,必要时在系统上实现上电复位策略。

七、总结

LTR-329ALS-01 以其 16-bit 解析度、最高 64 klx 的测量能力、宽工作电压与工业级温度范围,为需要高精度环境光检测的便携与嵌入式产品提供了可靠选择。设计过程中请结合光学布局、去耦、I2C 总线配置与系统校准一并优化;更多电气特性、时序与典型应用电路建议参见光宝官方数据手册。

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