0
ACTIVE
Number of channels |
9 |
LED current per channel (mA) |
22.5 |
LED configuration |
Parallel |
Program memory |
Yes |
Topology |
Charge pump, Current Sink |
Programmable ramp control |
Yes |
Vin (min) (V) |
2.5 |
Vin (max) (V) |
5.5 |
Iout (max) (A) |
0.23 |
Features |
Analog/PWM mixed dimming, Constant current, Current control, Direct PWM dimming, I2C control, Power-save mode, Programmable lighting engines |
Iq (typ) (mA) |
0.002 |
Shutdown current (ISD) (typ) (µA) |
0.2 |
Operating temperature range (°C) |
-40 to 85 |
Rating |
Catalog |
WQFN (RTW)-24-16 mm² 4 x 4
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.
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