TLC5951 Datasheet, PDF (17/46 Pages) Texas Instruments – 24-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction and 3-Group, 8-Bit Global Brightness Control

TLC5951
www.ti.com
SBVS127B – MARCH 2009 – REVISED DECEMBER 2009
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C and V_CC = 3.3 V, unless otherwise noted.
CONSTANT-CURRENT ERROR
vs AMBIENT TEMPERATURE
(Channel-to-Channel, RED Color)
4
I_OLCMax = 40 mA
3 DCRn = 7Fh with High Adjustment Range
BCR = FFh
2
1
0
-1
-2
-3
-4
-40
V_CC = 3.3 V
V_CC = 5 V
-20
0
20
40
60
Ambient Temperature (°)
80 100
Figure 20.
CONSTANT-CURRENT ERROR
vs AMBIENT TEMPERATURE
(Channel-to-Channel, GREEN Color)
4
I_OLCMax = 40 mA
3 DCGn = 7Fh with High Adjustment Range
BCG = FFh
2
1
0
-1
-2
-3
-4
-40
V_CC = 3.3 V
V_CC = 5 V
-20
0
20
40
60
Ambient Temperature (°)
80 100
Figure 21.
CONSTANT-CURRENT ERROR
vs AMBIENT TEMPERATURE
(Channel-to-Channel, BLUE Color)
4
I_OLCMax = 40 mA
3 DCBn = 7Fh with High Adjustment Range
BCB = FFh
2
1
0
-1
-2
-3
-4
-40
V_CC = 3.3 V
V_CC = 5 V
-20
0
20
40
60
Ambient Temperature (°)
80 100
Figure 22.
CONSTANT-CURRENT ERROR vs OUTPUT
(Channel-to-Channel, RED Color)
4
I_OLCMax = 2 mA to 40 mA Set By R_IREF
3 T_A = +25°C
DCRn = 7Fh with High Adjustment Range
2 _{BCR = FFh}
1
0
-1
-2
V_CC = 3.3 V
-3
V_CC = 5 V
-4
0
10
20
30
40
Output Current (mA)
Figure 23.
CONSTANT-CURRENT ERROR vs OUTPUT
(Channel-to-Channel, GREEN Color)
4
I_OLCMax = 2 mA to 40 mA Set By R_IREF
3
T_A = +25°C
DCGn = 7Fh with High Adjustment Range
2
BCG = FFh
1
0
-1
-2
-3
V_CC = 3.3 V
V_CC = 5 V
-4
0
10
20
30
40
Output Current (mA)
Figure 24.
CONSTANT-CURRENT ERROR vs OUTPUT
(Channel-to-Channel, BLUE Color)
4
I_OLCMax = 2 mA to 40 mA Set By R_IREF
3
T_A = +25°C
DCBn = 7Fh with High Adjustment Range
2
BCB = FFh
1
0
-1
-2
-3
V_CC = 3.3 V
V_CC = 5 V
-4
0
10
20
30
40
Output Current (mA)
Figure 25.
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