IS31FL3190 1-CHANNEL FUN LED DRIVER July 2019 GENERAL DESCRIPTION FEATURES IS31FL3190 is a 1-channel fun LED driver which has Independently controlled automatic and One Shot Programming mode and PWM Control mode semiautomatic breathing system-free for LED lighting effects. The maximum output current pre-established pattern can be adjusted in 5 levels (5mA~42mA). I2C interface, automatic address increment function In PWM Control mode, the PWM duty cycle of each Independently controlled output of 256 PWM output can be independently programmed and steps controlled in 256 steps to simplify color mixing. In One Shot Programming mode, the timing characteristics for 2.7V to 5.5V supply voltage output current - current rising, holding, falling and off 5 levels programmable output current time, can be adjusted individually. Provide auto breathing current control with 640 levels (5128) IS31FL3190 is available in UTQFN-9 (1.5mm 1.5mm). It operates from 2.7V to 5.5V over the Over-temperature protection temperature range of -40C to +85C. Operating temperature T = -40C ~ +85C A UTQFN-9 (1.5mm 1.5mm) package APPLICATIONS Mobile phones and other hand-held devices for LED display LED in home appliances TYPICAL APPLICATION CIRCUIT VBattery C2 VCC 1F0.1 F VBattery C1 OUT V DD 1 F 4.7k 4.7k IS31FL3190 B3 SDA C3 Micro SCL Controller A1 SDB B1,B2 100k GND Figure 1 Typical Application Circuit Note 1: The IC should be placed far away from the mobile antenna in order to prevent the EMI. Lumissil Microsystems www.lumissil.com 1 Rev.A, 07/23/2019 IS31FL3190 PIN CONFIGURATION Package Pin Configuration (Top View) UTQFN-9 PIN DESCRIPTION No. Pin Description A1 SDB Shutdown the chip when pulled to low. A2, A3 NC No connection. B1, B2 GND Ground. B3 SDA I2C serial data. C1 OUT Current source output. C2 VCC Power supply. C3 SCL I2C serial clock. Lumissil Microsystems www.lumissil.com 2 Rev.A, 07/23/2019