IS31FL3736-QFLS4-TR ISSI

IS31FL3736 128 DOTS MATRIX LED DRIVER WITH INDIVIDUAL AUTO BREATH FUNCTION July 2017 GENERAL DESCRIPTION FEATURES The IS31FL3736 is a general purpose 128 LEDs Supply voltage range: 2.7V to 5.5V matrix driver with 1/12 cycle rate. The device can be 8 current source outputs for row control programmed via an I2C compatible interface. Each 12 switch current inputs for column scan control LED can be dimmed individually with 8-bit PWM data Up to 96 LEDs (128) in dot matrix which allowing 256 steps of linear dimming. Programmable128 (32 RGBs) matrix size with IS31FL3736 features 3 Auto Breathing Modes which de-ghost function are noted as ABM-1, ABM-2 and ABM-3. For each 1MHz I2C-compatible interface Auto Breathing Mode, there are 4 timing characters Selectable 3 Auto Breath Modes for each dot which include current rising / holding / falling / off time Auto breath loop features interrupt pin inform and 3 loop characters which include Loop-Beginning / MCU auto breath loop completed Loop-Ending / Loop-Times. Every LED can be Auto breath offers 128 steps gamma current, configured to be any Auto Breathing Mode or No- interrupt and statelookup registers Breathing Mode individually. 256 steps global current setting Additionally each LED open and short state can be Individual on/off control detected, IS31FL3736 store the open or short Individual 256 PWM control steps information in LED Open/Short Registers. The LED Individual Auto Breath Mode select Open/Short Registers allowing MCU to read out via I2C compatible interface. Inform MCU whether there Individual open and short error detect function are LEDs open or short and the locations of open or Cascade for synchronization of chips short LEDs. QFN-40 (5mm5mm) package The IS31FL3736 operates from 2.7V to 5.5V and APPLICATIONS features a very low shutdown and operational current. Mobile phones and other hand-held devices for IS31FL3736 is available in QFN-40 (5mm5mm) LED display package. It operates from 2.7V to 5.5V over the Gaming device (Keyboard, Mouse etc.) temperature range of -40C to +125C. LED in white goods application Lumissil Microsystems www.lumissil.com 1 Rev. C, 07/04/2017 IS31FL3736 TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit (128) V CC V 5V IO/MCU *Note 2 17 31 PVCC VIO 22 F 0.47 F 0.1 F 0.47 F 10V 23 CS1 CS2 CS3 CS4 CS5 CS6 CS7 CS8 PVCC 0.47 F 0.1 F 27 DVCC 25 L CS8 SW12 28 AVCC 24 0.47 F 0.1 F CS7 K SW11 V IO/MCU J SW10 100k 1k 1k 16 I CS2 SW9 33 15 SDA CS1 H 34 SW8 SCL Micro IS31FL3736 37 Controller G INTB SW7 38 14 SDB SW12 F 39 13 SW6 IICRST SW11 100k 100k E SW5 D SW4 2 32 SW2 C SYNC 1 SW3 30 SW1 RSET B 35 SW2 ADDR1 REXT 36 4,11 20k A ADDR2 PGND SW1 40 26 GND AGND 1 234567 8 Figure 2 Typical Application Circuit (RGB) Note 1: For the mobile applications the IC should be placed far away from the mobile antenna in order to prevent the EMI. Note 2: Electrolytic/Tantalum Capacitor may considerable for high current application to avoid audible noise interference. Lumissil Microsystems www.lumissil.com 2 Rev. C, 07/04/2017