DESCRIPTION

· The IS31FL3733A is a 12×16 LED matrix driver with a 1/12 cycle rate, programmable via I2C interface.

· It supports individual 8-bit PWM dimming for each LED, offering 256 linear dimming steps.

· Features three Auto Breathing Modes (ABM-1, ABM-2, ABM-3) with configurable timing and loop characteristics.

· Includes Open-Short Registers for detecting and reporting LED open or short conditions.

· Operates from 2.7V to 5.5V, with low shutdown and operational current, available in QFN-48 and eTQFP-48 packages.

FEATURES

· Supply voltage range: 2.7V to 5.5V.

· Controls up to 192 LEDs in a 12×16 matrix with de-ghost function.

· 1MHz I2C-compatible interface.

· Three selectable Auto Breath Modes per LED.

· Auto Breath Loop features with interrupt pin for MCU notification.

· 128 steps gamma current, interrupt, and state lookup registers.

· PWM frequency options: 7.4kHz or 25kHz.

· 256 steps Global Current Setting.

· Individual on/off control, PWM control, and Auto Breath Mode selection.

· Individual open and short error detection.

· Cascade function for chip synchronization.

· Available in QFN-48 (6mm×6mm) and eTQFP-48 packages.

APPLICATIONS

· Hand-held devices with LED displays.

· Gaming devices such as keyboards and mice.

· LED applications in white goods.