Automotive, high current 48x16 LED matrix driver with 16-bits PWM dimming and ultra low power

The LP5892-Q1 is a highly integrated

common cathode matrix LED display driver with 48 constant current

sources and 16 scanning FETs. One LP5892-Q1 supports to drive 16 × 16 RGB pixels and two

LP5892-Q1 devices support to drive

32 × 32 RGB pixels. To achieve low power consumption, the device

supports separated power supplies for the red, green, and blue LEDs

by its common cathode structure. Furthermore, the operation power of

the LP5892-Q1 is significantly reduced by

ultra-low operation voltage range (Vcc down to 2.5V) and ultra-low

operation current (Icc down to 3.6mA).

The LP5892-Q1 implements a high speed

rising-edge transmission interface to support high device count

daisy-chained and high refresh rate while minimizing

electrical-magnetic interference (EMI). The device supports up to

50MHz SCLK (external) and up

to 160 MHz GCLK (internal). Meanwhile, the device integrates

enhanced circuits and intelligent algorithms to solve the various

display challenges in Narrow Pixel Pitch (NPP) LED display

applications and mini and micro-LED products: dim at the first scan

line, upper and downside ghosting, non-uniformity in low grayscale,

coupling, caterpillar caused by open or short LEDs, which make the

LP5892-Q1 a perfect choice in such

applications.

The LP5892-Q1 also implements LED

open/weak short/short detections and removals during operations and

can also report those information out to the accompanying digital

processor.