IS31FL3740 Datasheet | Lumissil

DESCRIPTION The IS31FL3740 is a general purpose 3×4 LEDs matrix driver with 1/12 cycle rate. The device can be programmed via an I2C patible interface. Each LED can be dimmed individually with 8-bit × 8 PWM data which allowing 1024 steps of linear dimming. IS31FL3740 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 No Breathing Mode individually. Additionally each LED open and short state can be detected, IS31FL3740 store the open or short information in Open-Short Registers. The Open-Short Registers allowing MCU to read out via I2C patible interface. Inform MCU whether there are LEDs open or short and the locations of open or short LEDs. The IS31FL3740 operates from 2.7V to 5.5V and features a very low shutdown and operational current. IS31FL3740 is available in QFN-20 (5mm×5mm) and e TSSOP-20 packages. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C. FEATURES - Supply voltage range: 2.7V to 5.5V - 4 current source outputs for row control - 3 switch current inputs for column scan control - Up to 12 LEDs (3×4) in dot matrix - Programmable 3×4 (4 RGBs) matrix size with de- ghost function - 1MHz I2C-patible interface - Selectable 3 Auto Breath Modes for each dot - Auto breath loop features interrupt pin inform MCU auto breath loop pleted - Auto breath offers128 steps gamma current, interrupt and state lookup registers - 256 steps global current setting - Individual on/off control - Individual 1024 PWM control steps - Individual Auto Breath Mode select - Individual open and short error detect function - Cascade for synchronization of chips - QFN-20 (5mm×5mm) and e TSSOP-20 packages APPLICATIONS - Mobile phones and other hand-held devices for LED display - Gaming...