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XLSEMI XL9505
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XLSEMI XL9505
- Type
- XLSEMI
- Minimum package
- 800 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XLSEMI
- Electronic Component
- XL9505
- Electronic Component
- 1
- Package
- TO-263
- Electronic Component
- LEDDriver
- Electronic Component
- PWM
- Electronic Component
- 1.705g
- Electronic Component
- 1
- Channel Count
- 1
- Features
- (OTP); (SCP)
- Electronic Component
- BM0264555989
- Operating Temperature
- 40℃~+125℃
- Switching Frequency
- 200kHz
- Electronic Component
- 4%
- 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.
XL9505 产品概述
一、简介
XL9505 是一款高集成度的同步降压恒流驱动芯片，内置功率开关，工作输入电压范围宽（DC 5V～45V），单通道输出电流可达 5A，开关频率 200kHz，恒流精度 4%。器件采用 TO-263（D2PAK）封装，适用于对体积、成本与散热有综合要求的中高功率 LED 驱动与照明应用。
二、主要特性
- 输入电压：5V～45V，适配常见工业与汽车电源环境。
- 输出形式：同步降压恒流，电流可调，最大 5A。
- 开关频率：200kHz，兼顾效率与外部元件体积。
- 调光方式：支持 PWM 调光，外部 PWM 控制占空比实现亮度调节。
- 保护功能：集成过温保护（OTP）与短路保护（SCP），提高系统可靠性。
- 精度与温度：恒流精度 ±4%；工作温度范围 -40℃～+125℃。
- 封装：TO-263，便于散热和大电流焊接。
三、电气与器件建议
- 开关管：内部集成，降低外部元件数量与设计复杂度。
- 输出滤波：建议选用低 ESR 输出电容（陶瓷＋固态或电解组合）以降低纹波与提升稳定性。
- 电感选择：选择电流额定值高于 5A 的电感，饱和电流裕量充分；电感值根据占空比与纹波要求在 1µH～10µH 范围内优化。
- PWM 调光：通过 DIM 管脚或外部 PWM 输入控制，占空比决定平均电流；为避免可见频闪，推荐 PWM 频率高于人眼可感范围或按系统需求设置。
四、保护与可靠性
XL9505 内建过温保护，当芯片结温超过阈值时进入限流或关断以防损坏；短路保护对负载短接或输出短路能快速响应，降低器件与电源应力。典型应用中建议配合合理的热设计与熔断器/保险丝实现多层保护。
五、封装与热管理
TO-263（D2PAK）封装提供良好散热通道，建议在 PCB 设计中加入大面积铜箔散热区与过孔连接底部散热层；关键布线注意缩短高电流回路（开关管、电感、电容）环路，降低 EMI 与热损耗。
六、典型应用场景与设计要点
- 应用：室内/商业照明、轨道灯、汽车转向灯与日间行车灯、户外广告与舞台照明等。
- 设计要点：合理选择电感与输出电容、优化开关回路布局、考虑输入瞬态保护（TVS）以应对 45V 输入边界情况、在高温环境下留足热余量。
XL9505 以高集成、宽压输入与强保护能力，为中高功率恒流 LED 驱动方案提供可靠、紧凑的解决方案。在具体设计中请结合实际电流、纹波与热预算选择外部元件并进行样机验证。若需参考电路或样片信息，可联系芯龙（XLSEMI）或授权分销商获取详细资料与评估板。
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