Next Generation Configurable Matrix LED Driver Family

Lumissil Microsystems, a division of Integrated Silicon Solution, introduced a new family of advance matrix LED drivers targeted for large LED arrays in gaming keyboards, appliance interfaces, smart speakers, messaging and control panels. 

The new IS31FL374x family of matrix drivers build on the success of similar matrix drivers; IS31FL3741 (351 LEDs) and IS31FL3742 (180 LEDs).

The IS31FL374x family of matrix LED drivers integrates many advanced features such as configurable matrix size, individual LED open/short detection, individual LED current adjust and PWM registers, all accessible via a fast 1MHz I2C or 12MHz SPI bus interface.

A configurable matrix size helps lower costs since the same matrix driver can be reused in different projects to support various LED array sizes without a major rewrite of the software.

The IS31FL374x devices enable each LED in the array with its own corresponding control and fault status register to provide individual LED color and dimming effects, de-ghosting and fault reporting for enhanced overall system performance health and reliability. LED matrix architectures typically experience a ghosting effect where an LED remains dimly ON due to a residual charge in the LED array matrix. The IS31FL374x family eliminates this residual charge and therefore eliminates the LED ghosting effect.