IS31FL3194 3-CHANNEL LED DRIVER WITH PROGRAMMABLE PATTERN SEQUENCING August 2017 GENERAL DESCRIPTION FEATURES IS31FL3194 is a 3-channel LED driver which features 2.7V to 5.5V supply voltage two-dimensional auto breathing mode. It has Pattern One group RGB/RG+W, or 3 single color LED Mode and Current Level Mode for RGB lighting effects. breathing system-free pre-established pattern The maximum output current can be adjusted in 4 Each output has own independent TS~T4 and own levels (40mA Max.). start command (Update register) In Current Level Mode, the current level of each output I2C interface, automatic address increment can be independently programmed and controlled in function 256 steps to simplify color mixing. In Pattern Mode, the 4 band programmable output current for each timing characteristics for output current - current rising output, each band has 256 current levels (T1), holding (T2), falling (T3) and off time (TS, TP, T4), Selectable gamma value for automatic breathing can be adjusted individually so that each output can for each output independently maintain a pre-established pattern Each pattern have 3 pre-established color achieving mixing color breathing or a single color Over-temperature protection breathing without requiring any additional interface Operating temperature: -40C ~ +85C activity, thus saving valuable system resources. APPLICATIONS IS31FL3194 is available in WLCSP-8 (1.0mm1.6mm) package. It operates from 2.7V to 5.5V over the Mobile phones and other hand-held devices for temperature range of -40C to +85C. LED display LED in home appliances TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit Note: The IC should be placed far away from the mobile antenna in order to prevent the EMI. Lumissil Microsystems www.lumissil.com 1 Rev. B, 08/04/2017 IS31FL3194 PIN CONFIGURATION Package Pin Configuration (Top View) SDB VCC A1 A2 SDA OUT1 B1 B2 WLCSP-8 SCL OUT2 C1 C2 GND OUT3 D1 D2 PIN DESCRIPTION No. Pin Description A1 SDB Shutdown the chip when pulled to low. A2 VCC Power supply. B1 SDA I2C serial data. B2, C2, D2 OUT1~OUT3 Current source outputs. C1 SCL I2C serial clock. D1 GND Ground. Lumissil Microsystems www.lumissil.com 2 Rev. B, 08/04/2017