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TLC5947 Datasheet(PDF) 8 Page - Texas Instruments

Part # TLC5947
Description  24-Channel, 12-Bit PWM LED Driver With Internal Oscillator
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLC5947 Datasheet(HTML) 8 Page - Texas Instruments

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background image
t /t
R0 F0
GS23
7A
GS0
2B
t
D1
1
2
3
4
5
6
7
285
286
287
288
t
F1
t
D4
t
D3
t
D2
T
WH1
SIN
OUT0/4/8/
12/16/20
(1)
OUT1/5/9/
13/17/21
(1)
OUT2/6/10/
14/18/22
(1)
OUT3/7/11/
15/19/23
(1)
ON
OFF
XLAT
Grayscale
LatchData
(Internal)
BLANK
SOUT
ON
OFF
ON
OFF
ON
OFF
T
WH0
T
WH1
T
SU0
f
SCLK
t
D0
t
R1
GS23
11B
GS23
10B
GS0
0A
GS23
9B
GS23
8B
GS23
7B
GS0
0B
GS0
1B
GS0
3B
GS23
11A
GS23
9A
GS23
8A
GS0
3A
GS0
2A
GS0
1A
GS0
0A
GS23
11B
GS23
10A
T
H0
PreviousGrayscaleData
LatestGrayscaleData
SCLK
1
2
3
4
5
T
H1
T
SU2
Oscillator
Clock
(Internal)
T
WL0
0 0 0 0 1 2 3 4 5 0 0 0 0 0 1 2
fOSC
GS23
11C
GS23
10C
GS23
9C
GS23
8C
GS23
7C
GS23
6C
GS23
5C
GS23
10B
GS23
9B
GS23
8B
GS23
7B
GS23
6B
GS23
5B
Counter
Value
T
SU1
4093
4094
4095
1 2 3 4
4096
¼
¼
¼
¼
t ,t ,t ,t ,t ,t ,t ,t ,t :
R0
R1
F0
F1
D0
D1
D2
D3
D4
INPUT
(1)
50%
50%
90%
10%
OUTPUT
t
D
t ort
R
F
V
orV
OL
OUTn
V
orV
OH
OUTn
GND
V
CC
TLC5947
SBVS114B – JULY 2008 – REVISED JANUARY 2015
www.ti.com
(1)
Input pulse rise and fall time is 1 ns to 3 ns.
Figure 2. Output Timing
(1)
GS data = FFFh.
Figure 3. Grayscale Data Write and OUTn Operation Timing
8
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Product Folder Links: TLC5947


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