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) |
Package Group |
Package size: mm2:W x L (PKG) |
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 |
WQFN | 24 |
DSBGA | 20
WQFN | 24 |
DSBGA | 25 | WQFN | 24 | DSBGA | 12 |
24WQFN: 16 mm2: 4 x 4 (WQFN | 24) |
See datasheet (DSBGA) 24WQFN: 20 mm2: 4 x 5 (WQFN | 24) |
See datasheet (DSBGA) | 24WQFN: 16 mm2: 4 x 4 (WQFN | 24) | See datasheet (DSBGA) |
立即下单 | 立即下单 | 立即下单 | 立即下单 | 立即下单 |