OC5021B datasheet by OCX.
| Part number | OC5021B |
|---|---|
| Datasheet | OC5021B-OCX.pdf |
| File Size | 352.35 KB |
| Manufacturer | OCX |
| Description | Switching step-down LED constant current driver |
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概述 OC5021B 是一款高效率、高精度的 降压型大功率 LED 恒流驱动控制芯片。 OC5021B 采用固定关断时间的峰值 电流控制方式，关断时间可通过外部电容 进行调节，工作频率可根据用户要求而改 变。 OC5021B 通过调节外置的电流采样 电阻，能控制高亮度 LED 灯的驱动电流， 使 LED 灯亮度达到预期恒定亮度。 在 DIM 端加 PWM 信号，可以进行 LED 灯调光。DIM 端同时支持线性调光。 OC5021B 内部集成了 VDD 稳压管以 及过温保护电路，减少外围元件并提高系 统可靠性。.
| Part Number | Description |
|---|---|
| OC5020B | Built-in MOS switch buck LED constant current driver |
| OC5022B | Built-in MOS switch buck LED constant current driver |
| OC5011B | High-Side Current Sense Buck LED Constant Current Driver |
| OC5031B | High-end current detection buck LED constant current driver |
| OC5033 | High-end current detection buck LED constant current driver |
| OC5038 | Buck-type LED constant current driver |
| OC5121 | Switching buck-type LED constant current controller |
| OC5122 | MOS Switch Buck-Type LED Constant Current Driver |
| OC5138T | MOS Switch Buck-Type LED Constant Current Driver |
| OC5207 | 800mA high-end current detection step-down LED constant current driver |
