TLC59291_16 Datasheet, PDF (22/46 Pages) Texas Instruments – 8/16-Channel, Constant Current LED Driver

TLC59291
SLVSA96A – SEPTEMBER 2015 – REVISED MARCH 2016
Typical Characteristics (continued)
At T_A = 25°C, unless otherwise noted.
3
2
1
0
-1
-2
-3
-40 -20
R_IREF = 1.28 kΩ
V_CC = 3.3 V
V_CC = 5 V
0
20
40
60
Temperature (°C)
V_OUTn = 0.8 V
80 100
Figure 20. Constant-Current Error
vs Ambient Temperature (Channel-to-Channel)
16
14
12
10
8
6
4
2
0
0
10
BC = 7Fh
SCLK = 35 MHz
20
30
Output Current (mA)
R_IREF = 1.6 kΩ
All Outpts on
V_CC = 3.3 V
V_CC = 5 V
40
50
SIN = 17.5 MHz
Figure 22. Supply Current
vs Output Current Set by R_IREF
30
25
20
15
10
5
0
-40 -20
BC = 7Fh
Power-Save Mode
V_CC = 3.3 V
V_CC = 5 V
0
20
40
60 80
100
Ambient Temperature (°C)
R_IREF = 1.6 kΩ SIN = SCLK = Low
Figure 24. Supply Current in Power-Save Mode
vs Ambient Temperature
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60
V_CC = 3.3 V
50
V_CC = 5 V
I_O = 2 mA
I_O = 5 mA
40
I_O = 10 mA
30
I_O = 20 mA
I_O = 40 mA
20
I_O = 50 mA
10
0
0 16 32 48 64 80 96 112 128
BC Data (Decimal)
Figure 21. Global Brightness
Control Linearity
14
12
10
8
6
4
2
0
-40 -20
BC = 7Fh
SCLK = 35 MHz
V_CC = 3.3 V
V_CC = 5 V
0
20
40
60
Ambient Temperature (°C)
R_IREF = 1.6 kΩ
All Outpts on
80 100
SIN = 17.5 MHz
CH1 (5 V/div)
CH2 (2 V/div)
Figure 23. Supply Current
vs Ambient Temperature
CH1-BLANK
CH2-OUT0
CH3 (2 V/div)
CH3-OUT1
CH4 (2 V/div)
CH4-OUT15
V_CC = 3.3 V
V_LED = 5 V
Time (20 ns/div)
BC = 7Fh
R_L = 100 Ω
R_IREF = 1.6 kΩ
C_L = 15 pF
Figure 25. Constant-Current Output
Voltage Waveform
22
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