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On-Bright OB2009MP
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- On-Bright OB2009MP
- Type
- ON-BRIGHT
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ON-BRIGHT
- Electronic Component
- OB2009MP
- Electronic Component
- 1
- Package
- SOT-23-6
- Type
- AC-DC
- Electronic Component
- LEDDriver
- Electronic Component
- 0.048g
- Electronic Component
- 1
- Channel Count
- 1
- Electronic Component
- BM0258733812
- Operating Temperature
- 40℃~+150℃
- Electronic Component
- Electronic Component
- Output Voltage
- 3V~28V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
OB2009MP 产品概述
一、产品简介
OB2009MP（昂宝 On-Bright）是一款用于AC-DC LED驱动的控制器，封装为SOT-23-6，适用于单通道反激拓扑的恒流/恒压型LED驱动设计。器件支持外置开关管，输出可覆盖3V～28V范围，内部集成欠压保护（UVP），工作温度宽温域：-40℃～+150℃，适合耐高温及工业级照明应用。
二、主要特性
- 类型：AC-DC LED驱动控制器（反激拓扑）
- 通道数：1路输出控制
- 输出电压范围：3V ~ 28V（适配多种LED串联方案）
- 保护特性：欠压保护（UVP），建议系统层面补充过流、过压与短路保护
- 开关管：外置（支持选择合适规格的MOSFET）
- 封装：SOT-23-6，利于小体积设计
- 工作温度：-40℃ ~ +150℃，适用于高温环境
三、典型应用场景
- 室内/商业照明（筒灯、嵌入式灯）
- 路灯与隧道照明（需耐粗犷环境）
- 小功率恒流驱动电源模块
- 需要外置MOSFET以实现高效率与热分摊的照明产品
四、功能与拓扑说明
OB2009MP 典型工作在反激（flyback）开关模式：市电经整流与滤波为反激变压器提供能量，OB2009MP 驱动外置开关管进行周期性能量传输，次级经整流稳压为LED供电。反馈可通过次级辅助绕组或光耦回馈至控制端，实现输出电压/电流调节。内置UVP用于检测控制电源电压，防止欠压工况下错误工作或损坏负载。
五、设计建议与注意事项
- 外置MOSFET：选择耐高压（Vds裕量≥耐压峰值）、低Rds(on)且开关损耗小的器件；考虑峰值电流和开启损耗。
- 辅助供电与启动：建议设计稳定的VCC辅助绕组或启动电路，配合VCC去耦电容，避免频繁重启。
- 吸收与箝位：在主开关两端设计RCD吸收或TVS保护抑制尖峰，保护器件与变压器。
- 电流采样：采样电阻布局靠近控制器CS引脚，回路尽量短，保证采样准确性。
- EMI与滤波：加装输入EMI滤波与共模电感，遵守安规间隙与爬电距离。
- 散热与封装：SOT-23-6有热限制，注意PCB散热铜箔和器件间距，评估高温下长期可靠性。
- 可靠性保护：除UVP外，系统需考虑过流、过压、短路及过温保护策略。
六、封装与可靠性
SOT-23-6 小封装便于压缩系统体积，但热阻相对较高；在-40℃～+150℃工作范围内，建议在样机测试中进行温升、老化与高温应力验证，确保长期稳定性。总体而言，OB2009MP 适合需要外置开关管以优化效率和热设计的中低功率LED驱动方案。
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