TLC5970 Datasheet, PDF (35/48 Pages) Texas Instruments – 3-Channel, 12-Bit, PWM LED Driver with Buck DC/DC Converter and Differential Signal Interface

TLC5970
www.ti.com
SBVS140 – MARCH 2010
Dot Correction (DC) Data Latch (Register Address = 1110b)
This data latch bit length is 21 bits. These data are used to set the current ratio of each constant-current output.
When the IC is powered on, the DC data latch is set to the data in the DC data EEPROM. When the DC data
write control bit is '1', the data can be changed by data written through the differential signal interface. The data
bit assignments are shown in Table 10 and Figure 28.
BIT NUMBER
6-0
13-7
20-14
35-21
Table 10. Dot Correction Data Latch Bit Assignment
BIT NAME
DCOUT0
DCOUT1
DCOUT2
—
DESCRIPTION
Dot correction data for OUT0 (data = 00h to 7Fh, default = EEPROM data)
Dot correction data for OUT1 (data = 00h to 7Fh, default = EEPROM data )
Dot correction data for OUT2 (data = 00h to 7Fh, default = EEPROM data )
No assigned bit (24-bit data).
No function has not been assigned to these bits. If any data are written to
these bits, device operation is not affected.
21-Bit Dot Correction Data
MSB
20
15
14
13
8
7
6
LSB
1
0
OUT2
OUT2 OUT2 OUT1
OUT1 OUT1 OUT0
OUT0 OUT0
¼ ¼ ¼ _{GS Data}
GS Data GS Data GS Data
GS Data GS Data GS Data
GS Data GS Data
Bit 11
Bit 1 Bit 0 Bit 11
Bit 1 Bit 0 Bit 11
Bit 1 Bit 0
To Display Timing Control Block
Figure 28. Dot Correction Data Latch Bit Assignment
Copyright © 2010, Texas Instruments Incorporated
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