IS31FL3729-QFLS4-TR

The IS31FL3729 is a general purpose 16×8 or 15×9 matrix LED driver programmed via a 1MHz I2C bus compatible interface. Each LED can be dimmed individually with 8-bit PWM data, and each CSx has 8-bit DC current scaling for color calibration. The combination enables 256 steps of linear PWM dimming for each dot and 256 steps of DC current adjustment for each CSx. Additionally, the open or short state of each LED can be detected and stored in Open-Short Registers. The MCU can then read the Open-Short Registers via the I2C bus and identify which LED in the array is open or short. The IS31FL3729 features a very low shutdown and quiescent (operational) current. It also supports selectable noise reduction features such as PWM clock spread spectrum and 180 degree phase shifting. IS31FL3729 is available in QFN-32 (4mm×4mm) and eTQFP-32 packages. It operates from 2.7V to 5.5V over the full temperature range of -40℃ to +125℃.

Applications

• White goods LED display panel
• IOT device

Key features

• Supply voltage range: 2.7V to 5.5V
• 16 current sinks
• Support 16×1 (n=1~8), 15×9 LED matrix configurations
• Individual 256 PWM control steps
• 256 DC current steps for each csx
• 64 global current steps
• SDB rising edge resets the I2C interface
• Register programmable PWM frequency: 0.25kHz to 55kHz
• 1MHz I2C-compatible interface
• Individual open and short error detect function
• PWM 180 degree phase shift
• Spread spectrum
• De-ghost
• QFN-32 4mm×4mm and eTQFP-32 packages