LP5569 器件是一款可编程、易于使用的 9 通道 I2C LED 驱动器，用于为各种 应用制造灯光效果。LED 驱动器配备了一个用于存储用户编程的序列的内部 SRAM 存储器，以及三个允许在无处理器控制的情况下运行的可编程 LED Engines。将处理器置于睡眠模式时，自主运行可以降低系统功耗。
高效电荷泵支持通过高 VF（甚至通过 2.5V 输入电压）驱动 LED。LP5569 LED 驱动器可以根据 LED 正向电压要求自主选择最佳的电荷泵增益，从而在宽工作电压范围内保持高效率。
当 LED 未激活时，LP5569 器件进入省电模式，从而显著降低空闲电流消耗。灵活的数字接口允许连接多达八个 LP5569 器件，每个器件在同一系统中具有唯一的 I2C 从器件地址，从而支持所有器件之间的灯光效果同步。
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| Channels (#) |
| LED Current Per Channel (mA) |
| LED Configuration |
| LED (#) |
| Program Memory |
| Programmable Ramp Control |
| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Iq (Typ) (mA) |
| Shutdown Current (Typ) (uA) |
| Peak Efficiency (%) |
| Features |
| Operating Temperature Range (C) |
| Pin/Package |
| LP5569 | LP5521 | LP5523 | LP55231 | LP5562 |
|---|---|---|---|---|
| 9 | 3 | 9 | 9 | 4 |
| 25.5 | 25.5 | 25.5 | 25.5 | 25.5 |
| Parallel | Parallel | Parallel | Parallel | Parallel |
| 9 | 3 | 9 | 9 | 4 |
| Yes | Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes | Yes |
| 2.5 | 2.7 | 2.7 | 2.7 | 2.7 |
| 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| 2.5 | 2.7 | 2.7 | 2.7 | 2.7 |
| 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| 0.23 | 0.0765 | 0.225 | 0.0255 | 0.11 |
| 0.002 | 1.5 | 0.8 | 0.8 | 1 |
| 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| 94 | 95 | 93 | 94 | 100 |
|
Analog/PWM Mixed Dimming Constant Current Current Control Direct PWM Dimming I2C Control Power Save Mode Programmable Lighting Engines |
Analog/PWM Mixed Dimming Constant Current Current Control I2C Control Power Save Mode Programmable Lighting Engines |
Analog/PWM Mixed Dimming Constant Current Current Control I2C Control Power Save Mode Programmable Lighting Engines |
Analog/PWM Mixed Dimming Constant Current Current Control I2C Control Power Save Mode Programmable Lighting Engines |
Analog/PWM Mixed Dimming Constant Current Current Control I2C Control Power Save Mode Programmable Lighting Engines |
| -40 to 85 | -30 to 85 | -30 to 85 | -30 to 85 | -40 to 85 |
| 24WQFN |
20DSBGA 24WQFN |
25DSBGA | 24WQFN | 12DSBGA |
| 立即下单 | 立即下单 | 立即下单 | 立即下单 | 立即下单 |
