IS31FL3194
Integrated Silicon Solution, Inc. – www.issi.com 1
Rev. B, 08/04/2017
3-CHANNEL LED DRIVER WITH PROGRAMMABLE PATTERN SEQUENCING
August 2017
GENERAL DESCRIPTION
IS31FL3194 is a 3-channel LED driver which features
two-dimensional auto breathing mode. It has Pattern
Mode and Current Level Mode for RGB lighting effects.
The maximum output current can be adjusted in 4
levels (40mA Max.).
In Current Level Mode, the current level of each output
can be independently programmed and controlled in
256 steps to simplify color mixing. In Pattern Mode, the
timing characteristics for output current - current rising
(T1), holding (T2), falling (T3) and off time (TS, TP, T4),
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.
IS31FL3194 is available in WCSP-8 (1.0mm×1.6mm)
package. It operates from 2.7V to 5.5V over the
temperature range of -40°C to +85°C.
FEATURES
2.7V to 5.5V supply voltage
One group RGB/RG+W, or 3 single color LED
breathing system-free pre-established pattern
Each output has own independent TS~T4 and own
start command (Update register)
I2C interface, automatic address increment
function
4 band programmable output current for each
output, each band has 256 current levels
Selectable gamma value for automatic breathing
for each output
Each pattern have 3 pre-established color
Over-temperature protection
Operating temperature: -40°C ~ +85°C
APPLICATIONS
Mobile phones and other hand-held devices for
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.
