IS31FL3193

Integrated Silicon Solution, Inc. – www.issi.com

1

Rev. C, 11/27/2014

3-CHANNEL FUN LED DRIVER

December 2014

GENERAL DESCRIPTION

IS31FL3193 is a 3-channel fun LED driver which

features two-dimensional auto breathing mode. It has

One Shot Programming mode and PWM Control mode

for RGB lighting effects. The maximum output current

can be adjusted in 5 levels (5mA~42mA).

In PWM Control mode, the PWM duty cycle of each

output can be independently programmed and

controlled in 256 steps to simplify color mixing. In One

Shot Programming mode, the timing characteristics for

output current - current rising, holding, falling and off

time, can be adjusted individually so that each output

can independently maintain a pre-established pattern

achieving mixing color breathing or a single color

breathing without requiring any additional interface

activity, thus saving valuable system resources.

IS31FL3193 is available in DFN-10 (3mm × 3mm). It

operates from 2.7V to 5.5V over the temperature range

of -40°C to +85°C.

FEATURES



One group RGB, single color LED breathing

system-free pre-established pattern



3 independently controlled automatic and

semiautomatic breathing system-free

pre-established pattern



I2C interface, automatic address increment

function



3 independently controlled outputs of 256 PWM

steps



2.7V to 5.5V supply voltage



5 levels programmable output current



Over-temperature protection





DFN-10 (3mm × 3mm) package

APPLICATIONS



Mobile phones and other hand-held devices for

LED display



LED in home appliances

TYPICAL APPLICATION CIRCUIT

SDA

SCL

SDB

IS31FL3193

OUT1

OUT2

OUT3

VCC

1 F0.1 F

Micro

Controller

4.7k

4.7k

2

9

8

1

7

3

4

5

100k

AD

GND

6

V_BM

1 F

10

4.7k

Figure 1

Typical Application Circuit

Note:

The IC should be placed far away from the mobile antenna in order to prevent the EMI.