IS31FL3199 9-CHANNEL LIGHT EFFECT LED DRIVER October 2018 GENERAL DESCRIPTION FEATURES IS31FL3199 is a 9-channel light effect LED driver 2.7V to 5.5V supply voltage which features two-dimensional auto breathing mode I2C interface, automatic address increment and an audio modulated display mode. It has One Shot function Programming mode and PWM Control mode for RGB Three groups RGB, single color LED breathing lighting effects. The maximum output current can be system-free pre-established pattern adjusted in 8 levels (5mA~40mA). 9 independently controlled automatic and semiautomatic breathing system-free In PWM Control mode, the PWM duty cycle of each pre-established pattern output can be independently programmed and 9 independently controlled outputs of 256 PWM controlled in 256 steps to simplify color mixing. In One steps Shot Programming mode, the timing characteristics for 8 levels programmable output current output current - current rising, holding, falling and off Audio mode with AGC function time, can be adjusted individually so that each output can independently maintain a pre-established pattern Cascade for the synchronization of chips achieving mixing color breathing or a single color Over-temperature protection breathing without requiring any additional interface QFN-20 (3mm 3mm) package activity, thus saving valuable system resources. APPLICATIONS The IS31FL3199 includes an audio modulated display Mobile phones and other hand-held devices for mode, wherein the brightness of LED can be LED display modulated by audio signal. There is a cascade pin for the synchronization of two chips. LED in home appliances IS31FL3199 is available in QFN-20 (3mm 3mm). It operates from 2.7V to 5.5V over the temperature range of -40C to +85C. TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit Note 1: IC should be placed far away from the antenna in order to prevent the EMI. Note 2: The VIH of I2C bus (VDD as above) should be smaller than VCC. And if VIH is lower than 3.0V, it is recommended add a level shift circuit to avoid extra shutdown current. Lumissil Microsystems www.lumissil.com 1 Rev. C, 10/15/2018 IS31FL3199 Figure 2 Typical Application Circuit (Cascade Mode) Note 3: One system should contain only one clock master, all slave parts should be configured as slave mode before the master is configured as master mode. Work as master mode or slave mode specified by Configuration Register-2 (CM bit, register 04h). Master part output master clock, and all the other parts which work as slave input this master clock. Lumissil Microsystems www.lumissil.com 2 Rev. C, 10/15/2018