IS32FL3761 Datasheet | Lumissil

DESCRIPTION The IS32FL3761 is a general purpose 33 × n (n=12~2) LED Matrix programmed via 1MHz I2C or 12MHz SPI patible interface. Each LED can be dimmed individually with 12-bit/8+4-bit/8-bit/6+2-bit PWM data and each color sink can have 8-bit DC scaling data which allowing 256 steps of linear PWM dimming and each color sink has 256 steps of DC current adjustable level and precision for smooth LED brightness control. The output current of each channel is designed to be 30m A, which can be adjusted by 8-bit global control register and the SL registers. Proprietary algorithms are used in IS32FL3761 to minimize power bus noise caused by passive ponents on the power bus such as MLCC decoupling capacitor. Additionally, each LED open and short state can be detected, IS32FL3761 stores the open or short information in Open/Short Registers. The Open/Short Registers can be read out via I2C/SPI patible interface, inform MCU whether there are LEDs open or short and the locations of open or short LEDs. The IS32FL3761 operates from 2.7V to 5.5V and features a very low shutdown and operational current. IS32FL3761 is available in QFN-60 (7mm×7mm) package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C. Preliminary Information April 2024 FEATURES - Supply voltage range: 2.7V to 5.5V - Support 33 × n (n=12~2) matrix configuration - Individual 12-bit/8+4-bit/8-bit/6+2-bit PWM control steps - 312k Hz PWM Frequency (@6+2-bit PWM) - Ultra-low IQ (1.2m A Typ.) when frame rate is 3.8k Hz PWM frequency - Global 256 step current setting - Each current sink (CSy) 8-bit DC current steps - 1MHz I2C or 12MHz SPI by SEL pin - For matrix scanning operation - Built-in de-ghosting circuit - Reduced inactive LED reverse bias to improve LED reliability - LED open/short detection accessible to SPI/I2C - Group phase shift (180 degree) to reduce audible noise and power ripple - Spread spectrum - ±6% device to device @IOUT= 30m A - ±5% bit to bit @IOUT= 30m A AEC-Q100...