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TLC5902PZP Fiches technique(PDF) 7 Page - Texas Instruments

No de pièce TLC5902PZP
Description  LED DRIVER
PDF  23 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TLC5902PZP Fiches technique(HTML) 7 Page - Texas Instruments

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TLC5902
LED DRIVER
SLLS382 – DECEMBER 1999
7
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Function Tables
Truth Table (Data)
BC_ENA
ENABLE
DCLK
RSEL
LATCH
MODE
DOUT0 – DOUT7
OPERATION/FUNCTION
L
X
X
X
X
X
No change
Data latch for brightness control is set to 1Fh.
X
H
X
X
X
X
No change
Data transfer for gray scale and brightness
control does not occur.
X
L
↑
H
X
X
Shift register for
brightness control
Data of DIN0 to DIN7 is clocked into the shift
register for brightness control.
X
L
↑
L
X
H
Data for shift register
before 16 bytes (written
before 16 times)
Data of DIN0 to DIN7 is clocked into the first byte
of the shift register for gray scale data.
X
L
↑
L
X
L
Shift register for gray
scale before 8 bytes
(written before 8 times)
Data of DIN0 to DIN7 is clocked into the first byte
of the shift register for gray scale data.
H
X
X
H
H
X
No change
Shift register for brightness control goes through
data latch for brightness control.
X
X
X
L
H
X
No change
Shift register for gray scale goes through data
latch for gray scale.
H
X
X
X
L
X
No change
The value for the shift register selected by RSEL
is latched.
Truth Table (Display/Protection)
BLANK
GSCLK
MODE
WDT
WD_CAP
TS_ENA
OUT0~15
DOWN
OPERATION/
FUNCTION
H
X
X
X
X
X
Off
Hi–Z
L
↓
H
X
X
X
16 bits operation mode. The output is turned on if
all the gray scale data is not zero on the falling edge
of GCLK after the next rising edge of GCLK when
BLANK goes from high to low. Each output turns off
on the falling edge of GSCLK, corresponding to
each gray scale data.
Hi–Z
L
↓
L
X
X
X
8 bits operation mode. The output is turned on if all
the gray scale data is not zero on the falling edge
of GCLK after the next rising edge of GCLK when
BLANK goes from high to low. Each output turns off
on the falling edge of GSCLK corresponding to
each gray scale data.
Hi–Z
L
X
X
CLK
capacitor
X
Turn off if the level of WDT is not changed within
time set by capacitor connected to WD_CAP.
L
Recover when
the level of
WDT changes.
L
X
X
CLK
L
X
WDT function is disabled.
Hi–Z
L
X
X
CLK
H
X
WDT function is disabled.
Hi–Z
L
X
X
X
X
H
Turn off if junction temperature exceeds the limit.
L
Set TS_ENA to
low for recovery



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