GENERAL DESCRIPTION
The IS31FL3731C is a compact LED driver for 144 single LEDs. The device can be programmed via an I2C compatible interface. The high logic (0.77VCC) and low logic (0.2VCC) control threshold are specially designed for white goods and industry application to minimize the impact by the EMC noise. The IS31FL3731C offers two blocks each driving 72 LEDs with 1/9 cycle rate. The required lines to drive all 144 LEDs are reduced to 18 by using the cross-plexing feature optimizing space on the PCB. Additionally each of the 144 LEDs can be dimmed individually with 8-bit allowing 256 steps of linear dimming.

FEATURES
● Supply voltage range: 2.7V to 5.5V
● 400kHz I2C-compatible interface
● 0.77VCC threshold logic high control
● 144 LEDs in dot matrix
● Individual blink control
● 8 frames memory for animations
● Picture mode and animation mode
● Auto intensity breathing during the switching of
   different frames
● LED frames displayed can be modulated with
   audio signal intensity
● LED light intensity can be modulated with audio
   signal intensity
● QFN-28 (4mm × 4mm) and SSOP-28 package

APPLICATIONS
● White goods LED application
● Home, medical, industrial LED appliances