深圳市轩成微电子有限公司

The IS31FL3733 is a general purpose 12×16 LEDs

matrix driver with 1/12 cycle rate. The device can be

programmed via an I2C compatible interface. Each

LED can be dimmed individually with 8-bit PWM data

which allowing 256 steps of linear dimming.

IS31FL3733 features 3 Auto Breathing Modes which

are noted as ABM-1, ABM-2 and ABM-3. For each

Auto Breathing Mode, there are 4 timing characters

which include current rising / holding / falling / off time

and 3 loop characters which include Loop-Beginning /

Loop-Ending / Loop-Times. Every LED can be

configured to be any Auto Breathing Mode or NoBreathing

Mode individually.

Additionally each LED open and short state can be

detected, IS31FL3733 store the open or short

information in Open-Short Registers. The Open-Short

Registers allowing MCU to read out via I2C

compatible interface. Inform MCU whether there are

LEDs open or short and the locations of open or short

LEDs.

The IS31FL3733 operates from 2.7V to 5.5V and

features a very low shutdown and operational current.

IS31FL3733 is available in QFN-48 (6mm×6mm) and

eTQFP-48 packages. It operates from 2.7V to 5.5V

over the temperature range of -40°C to +125°C.

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