8 x 18 high-current LED matrix driver with 8-bit analog and 8-/16-bit PWM dimming

The LP5868T is a high-current and high-performance LED matrix

driver. The device integrates 18 constant current sinks with N (N = 6/8/11) switching

MOSFETs to support . The LP5868T integrates 8 MOSFETs for up to 144 LED dots or 48 RGB

LEDs.

The LP5868T supports

both analog dimming and PWM dimming methods. For analog dimming, each LED dot can be

adjusted with 256 steps. For PWM dimming, the integrated 8-bit or 16-bit configurable PWM

generators enable smooth and audible-noise-free dimming control. Each LED dot can also be

arbitrarily mapped into 8-bit Group PWM to achieve dimming control together.

The LP5868T device

implements full addressable SRAM to minimize the data traffic. The ghost-cancellation

circuitry is integrated to eliminate both upside and downside ghosting. The LP5868T also supports LED open and short detection functions.

Both 1MHz (maximum) I2C and 12MHz (maximum) SPI are available in LP5868T.