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TLC5942PWPR Datasheet(PDF) 8 Page - Texas Instruments

No. de pieza TLC5942PWPR
Descripción Electrónicos  16-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction
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Fabricante Electrónico  TI [Texas Instruments]
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TLC5942PWPR Datasheet(HTML) 8 Page - Texas Instruments

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TLC5942
SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007
TERMINAL FUNCTIONS
TERMINAL
NAME
PWP
RHB
I/O
DESCRIPTION
GSSIN
5
2
I
Serial data input for grayscale.
Serial data shift clock for grayscale and reference clock for Grayscale PWM control. Data present
on the GSSIN pin are shifted into the Grayscale Shift Register with each rising edge of the
GSSCLK
4
1
I
GSSCLK pin. Data are shifted into the LSB of the register with each rising edge. The MSB of the
register is shifted to the GSSOUT pin with each rising edge. If BLANK is low, then each rising
edge of GSSCLK increments the grayscale counter for PWM control.
Data in the shift register are moved to the grayscale data latch with a low-to-high transition of this
XGSLAT
6
3
I
pin.
Serial data output for Grayscale/Status information data. This signal is connected to MSB of
GSSOUT
24
23
O
Grayscale Shift Register.
DCSIN
3
32
I
Serial data input for Dot Correction.
Serial data shift clock for dot correction. Data present on the DCSIN pin are shifted into the dot
correction shift register with each rising edge of the DCSCLK pin. Data are shifted into the LSB of
DCSCLK
2
31
I
the register with each rising edge. The MSB of the register is shifted to the DCSOUT pin with
each rising edge.
Data in the shift register are moved to the dot correction data latch with a low-to-high transition of
XDCLAT
26
25
I
this pin.
Serial data output for dot correction. This signal is connected to the MSB of the Dot Correction
DCSOUT
25
24
O
Shift Register.
Blank (all constant current outputs off). When BLANK is high, all constant current outputs (OUT0
through OUT15) are forced off, the Grayscale counter is reset to '0', and the Grayscale PWM
BLANK
23
22
I
timing controller is initialized. When BLANK is low, all constant current outputs are controlled by
the Grayscale PWM timing controller.
Constant current value setting. OUT0 through OUT15 sink constant current is set to desired
IREF
27
26
I/O
value by connecting an external resistor between IREF and GND.
OUT0
14
11
O
Constant current output
OUT1
13
10
O
Constant current output
OUT2
12
9
O
Constant current output
OUT3
11
8
O
Constant current output
OUT4
10
7
O
Constant current output
OUT5
9
6
O
Constant current output
OUT6
8
5
O
Constant current output
OUT7
7
4
O
Constant current output
OUT8
15
14
O
Constant current output
OUT9
16
15
O
Constant current output
OUT10
17
16
O
Constant current output
OUT11
18
17
O
Constant current output
OUT12
19
18
O
Constant current output
OUT13
20
19
O
Constant current output
OUT14
21
20
O
Constant current output
OUT15
22
21
O
Constant current output
VCC
28
27
Power-supply voltage
GND
1
30
Power ground
12, 13,
NC
No internal connection
28, 29
8
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Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TLC5942


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