Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF HTML

TLC5942 Datasheet(PDF) 16 Page - Texas Instruments

Click here to check the latest version.
Part No. TLC5942
Description  16-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction
Download  33 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo 

TLC5942 Datasheet(HTML) 16 Page - Texas Instruments

Zoom Inzoom in Zoom Outzoom out
 16 / 33 page
background image
www.ti.com
Dot Correction (DC) Function
I
(mA)=I
(mA)
OUTn
OLCMax
´
()
DCn
127d
(2)
TLC5942
SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007
The TLC5942 is able to individually adjust the output current of each channel (OUT0 to OUT15). This function is
called dot correction (DC). The DC function allows users to individually adjust the brightness and color deviations
of LEDs connected to the outputs OUT0 to OUT15. Each respective channel output current can be adjusted in
128 steps from 0% to 100% of the maximum output current, IOLCMax. The dot correction data are entered into the
TLC5942 via the serial interface.
Equation 2 determines the sink current for each output (OUTn):
Where:
IOLCMax = the maximum channel current for each channel determined by RIREF
DCn = the programmed dot correction value for OUTn (DCn = 0 to 127d)
When the IC is powered on, the data in the Dot Correction Shift Register and data latch are not set to any default
values. Therefore, DC data must be written to the DC latch before turning on the constant current output.
Table 2 summarizes the DC data versus current ratio and set current value.
Table 2. DC Data versus Current Ratio and Set Current Value
SET CURRENT
OUTPUT CURRENT
OUTPUT CURRENT
DC DATA
DC DATA
DC DATA
RATIO TO
(mA, typical)
(mA, typical)
(Binary)
(Decimal)
(Hex)
MAX CURRENT (%)
AT IOLCMax = 50 mA
AT IOLCMax = 5 mA
000 0000
0
00
0.0
0.0
0.00
000 0001
1
01
0.8
0.4
0.04
000 0010
2
02
1.6
0.8
0.08
... ...
... ...
... ...
... ...
... ...
... ...
111 1101
125
7D
98.4
49.2
4.92
111 1110
126
7E
99.2
49.6
4.96
111 1111
127
7F
100.0
50.0
5.00
16
Submit Documentation Feedback
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TLC5942


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn