TLC5911 Datasheet, PDF (28/30 Pages) Texas Instruments – LED DRIVER

XLATCH
BLANK
tsu(XLATCH–GSCLK)
GSPOL
GSCLK
1/f(WDT)
tsu(BLANK–GSCLK)
WDTRG
tw(l)(WDTRG)
OUT0
OUT1
tw(h)(WDTRG)
td(BLANK–OUT0)
td(OUTn+1–OUTn)
OFF
OFF
td(GSCLK–OUT0)
ON (See Note1)
ON (See Note1)
OUT15
OFF
ON (See Note1)
td(BLANK–OUT0)
1/f(GSCLK)
tw(l)(GSCLK)
tw(h)(GSCLK)
td(GSCLK–OUT0)
OFF
(SeeNote1)
td(OUTn+1–OUTn)
OFF
(SeeNote1)
twdt
OFF (SeeNote1)
OFF (SeeNote1)
OFF
(SeeNote1)
OFF ^(SeeNote1)
XDOWN1
HI–Z
XDOWN2
BOUT
td(GSCLK–XDOWN2)
td(BLANK–BOUT)
td(GSCLK–XGSOUT)
(See Note2)
(See Note2)
(See Note2)
XGSOUT
LEDCHK
td(LEDCHK–XDOWN2)
td(LEDCHK–XDOWN2)
GSPOL, GSCLK and XGSOUT can be replaced with signals inverted each other.
NOTE 1: ON or OFF, or ON time is varied depend on the gray scale data and BLANK.
NOTE 2: When LED is disconnected.
Figure 16. Timing Diagram (Constant Current Output) – MAG0 to MAG2 Are All Zero