This datasheet includes multiple variants, all published together in a single manufacturer document.
| Part number | WS9222B |
|---|---|
| Datasheet | WS9222B WS9222A Datasheet (PDF) |
| File Size | 705.19 KB |
| Manufacturer | Winsemi |
| Description | Isolated dual-winding PSR LED constant current driver |
|
|
WS9222X 隔离双绕组 PSR LED 恒流驱动芯片 特点 ◼ 无 VCC 电容、无启动电阻 ◼ 集成 JFET 高压供电电路 ◼ 无需变压器辅助绕组检测和供电 ◼ 宽输入电源范围 ◼ LED 开路保护 ◼ LED 短路保护 ◼ 过温调节功能 应用领域 ◼ LED 球泡灯 ◼ LED 筒灯 ◼ 其它 LED 照明 概述 WS9222X 是一款高精度原边反馈 LED 恒流驱动芯片， 芯片工作在电感电流断续模式，适用于全范围输入电压反激式 隔离 LED 恒流电源。 WS9222X 芯片内部集成 650V 功率开关，采用原边反 馈 和 JFET 高压供电技术，无需 VCC 电容和启动电阻，使 其外围器件更简单，极大地节约了系统的成本和体积。 WS9222X 芯片内带有高 精 度的电 流取 样电路 ，使得 LED 输出电流精度达到±5%以内。芯片采用了特有的恒流控 制方式，可以达到优异的线性调整率。 WS9222X...
| Part Number | Description |
|---|---|
| WS9222A | Isolated dual-winding PSR LED constant current driver |
| WS9222F | Isolated dual-winding PSR LED constant current driver |
| WS9222G | Isolated dual-winding PSR LED constant current driver |
| WS9221 | High Precision PSR Constant Current LED Driver |
| WS9221B | High Precision PSR Constant Current LED Driver |
| WS9224 | High Precision PSR Constant Current LED Driver |
| WS9226 | High Precision PSR Constant Current LED Driver |
| WS9227 | High Precision PSR Constant Current LED Driver |
| WS9252 | High Precision PSR Constant Current LED Driver |
| WS9254 | High Precision PSR Constant Current LED Driver |
