LED Control IC

W2RG012RN

17

Drive Output Group

Adjoining drive output terminals (OUT0R - 7B) have different change timings. This difference is designed to reduce noise caused by the simulta-

neous change of drive output. There are 4 change timings, by which drive outputs are grouped as follows:

Note: *This does not apply when the division mode is set as 16x8 configuration, in which case the following operations are executed:

OUT5G - 6G: Not used.

OUT6B - OUT7B: Functions as OUTS4 - 7

Synchronous Control Output

Synchronous control output terminal (OUTDC) outputs control signals synchronized with lighting switch. These signals are used to drive external

circuits at lighting switch.

■ Power-saving Control

Power saving data is set, via communications as 100%, 75%, 50% or 25%. Current or duty ratio control is used as control method. Power saving

data can be set separately via either of these methods.

Current Control

Output currents are changed collectively according to a designated ratio to a current set with current setting terminal REXTR/REXTG/REXTB.

Note: The hue of a full-color LED in normal operation may be different from that in power-saving operation, due to differences in current charac-

teristics among R/G/B.

Duty Ratio Control

Output duty ratios are changed collectively according to a designated ratio to a duty ratio designated to a particular gradation.

Drive output

terminal

Drive output group

OUTX-a

OUTX-b

OUTX-c

OUTX-d

OUT0R

OUT0G

OUT0B

OUT1R

OUT1G

OUT1B

OUT2R

OUT2G

OUT2B

OUT3R

OUT3G

OUT3B

OUT4R

OUT4G

OUT4B

OUT5R

OUT5G

(*)

OUT5B

(*)

OUT6R

(*)

OUT6G

(*)

OUT6B

(*)

OUT7R

(*)

OUT7G

(*)

OUT7B

(*)