TLC5943_17 Datasheet, PDF (14/40 Pages) Texas Instruments – 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control

TLC5943
SBVS101 – DECEMBER 2007
TYPICAL CHARACTERISTICS (continued)
At V_CC = 3.3 V and T_A = +25°C, unless otherwise noted.
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BRIGHTNESS CONTROL LINEARITY
60
T_A = +25°C
50
I_OLCMax = 50 mA
40
BRIGHTNESS CONTROL 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
Brightness Control Data (dec)
Figure 20.
20
10
0
0
T_A = -40°C
T_A = +25°C
T_A = +85°C
20
40
60
80 100 120 140
Brightness Control Data (dec)
Figure 21.
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, BC = 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 22.
14
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