LP5569 (正在供货)

LP5569 简便易用的九通道 RGB LED 驱动器

 

描述

The LP5569 device is a programmable, easy-to-use 9-channel I2C LED driver designed to produce lighting effects for various applications. The LED driver is equipped with an internal SRAM memory for user-programmed sequences and three programmable LED engines, which allow operation without processor control. Autonomous operation reduces system power consumption when the processor is put in sleep mode.

A high-efficiency charge pump enables the driving of LEDs with high VF, even with 2.5-V input voltage. The LP5569 LED driver maintains good efficiency over a wide operational voltage range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements.

The LP5569 device enters power-save mode when LEDs are not active, lowering idle-current consumption considerably. A flexible digital interface allows the connection of up to eight LP5569 devices with a unique I2C slave address for each device in the same system, which supports synchronization of the lighting effects among all devices.

特性

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参数 与其它产品相比 RGB 和白光 LED 驱动器

 
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
Rating
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
Programmable Lighting Engines   
Analog/PWM Mixed Dimming
Constant Current
Current Control
I2C Control
Programmable Lighting Engines   
Analog/PWM Mixed Dimming
Constant Current
Current Control
I2C Control
Programmable Lighting Engines   
Analog/PWM Mixed Dimming
Constant Current
Current Control
I2C Control
Programmable Lighting Engines   
Analog/PWM Mixed Dimming
Constant Current
Current Control
I2C Control
Programmable Lighting Engines   
Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 85    -30 to 85    -30 to 85    -30 to 85    -40 to 85   
24WQFN    20DSBGA
24WQFN   
25DSBGA    24WQFN    12DSBGA