LP8863-Q1 是带有升压控制器的汽车高效 LED 驱动器。六路高精度电流阱支持相移,它可根据使用的通道数自动调整。可通过 SPI 或 I2C 接口单独和全局控制电流阱亮度;也可以通过 PWM 输入全局控制亮度。
升压控制器具有基于 LED 电流阱余量电压的自适应输出电压控制。该特性可在所有条件下将电压调节到能够满足需要的最低水平,从而更大限度降低功耗。凭借宽范围可调频率,LP8863-Q1 能够避免 AM 无线电频带的干扰。
LP8863-Q1 支持内置混合 PWM 和电流调光,从而降低了 EMI、延长了 LED 使用寿命并提高了总光学效率。
| Number of channels | 6 |
| Topology | Boost with Current Sink, SEPIC Controller |
| Rating | Automotive |
| Operating temperature range (°C) | -40 to 125 |
| Vin (min) (V) | 3 |
| Vin (max) (V) | 48 |
| Vout (min) (V) | 7 |
| Vout (max) (V) | 48 |
| Iout (max) (A) | 0.9 |
| Iq (typ) (mA) | 15 |
| Switching frequency (max) (kHz) | 2200 |
| Features | Adjustable Switch Frequency, Boost Sync, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal Prewarning and Shutdown |
| HTSSOP (DCP) | 38 | 62.08 mm² 9.7 x 6.4 |