TLC5942_16 Datasheet, PDF (14/29 Pages) Texas Instruments – 16-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction

TLC5942
Not Recommended for New Designs
SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007
TYPICAL CHARACTERISTICS (continued)
At VCC = 3.3 V and T_A = +25°C, unless otherwise noted.
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DOT CORRECTION LINEARITY
60
T_A = +25°C
50
I_OLCMax = 50 mA
40
DOT CORRECTION LINEARITY
60
I_OLCMax = 50 mA
50
40
30
30
20
10
0
0
I_OLCMax = 30 mA
I_OLCMax = 5 mA
20
40
60
80 100 120 140
Dot Correction Data (dec)
Figure 18.
20
10
0
0
T_A = -40°C
T_A = +25°C
T_A = +85°C
20
40
60
80 100 120 140
Dot Correction Data (dec)
Figure 19.
CONSTANT CURRENT OUTPUT VOLTAGE WAVEFORM
CH1 (2 V/div)
CH1-GSCLK
(30 MHz)
CH2 (2 V/div)
CH2-OUT0
(GSData = 0x001h)
CH3 (2 V/div)
I_OLCMax = 50 mA, DCn = 7Fh
T_A = +25°C,R_L = 82 W
C_L = 15 pF, VLED = 5 V
CH3-OUT15
(GSData = 0x001h)
Time (25 ns/div)
Figure 20.
14
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