TLC5957 Datasheet, PDF (9/25 Pages) Texas Instruments – TLC5957 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LED OPEN Detection and Caterpillar Cancelling

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TLC5957
SLVSCQ4 – OCTOBER 2014
Typical Characteristics (continued)
At VCC= 4V and T_A = 25°C, unless otherwise noted.
1.6
1.4
1 mA
1.4
25 mA
1.2
1.2
1
1
0.8
0.8
0.6
0.6
0.4
0.4
1 mA
25 mA
0.2
-40 -20
0 20 40 60 80 100 120 140
Ambient Temperature (GC)
D015
V_CC=4V
VOUTXn=0.6V
Figure 8. Maximum Constant-Current Error vs Ambient
Temperature
(Channel-to-Channel in GREEN color group)
30
1 mA
5 mA
25
10 mA
20 mA
25 mA
20
0.2
-40 -20
0 20 40 60 80 100 120 140
Ambient Temperature (GC)
D016
V_CC=4V
VOUTXn=0.6V
Figure 9. Maximum Constant-Current Error vs Ambient
Temperature
(Channel-to-Channel in BLUE color group)
25
V_CC = 3 V
24
V_CC = 4 V
V_CC = 5.5 V
23
22
15
21
10
5
0
0
1
2
3
4
5
6
7
8
Step [dec]
D012
20
19
18
17
0
5
VOUTXn=0.6V,
10
15
Output Current (mA)
GCLK=33MHz,
20
25
D017
GSXn=FFFFh,
Figure 10. Global Brightness Control Linearity
21.5
Figure 11. Supply Current (I_CC) vs Output Current
21.25
21
20.75
20.5
20.25
20
19.75
19.5
-50
GCLK=33MHz
GSXn=FFFFh,
V_CC = 3 V
V_CC = 4 V
V_CC = 5.5 V
0
50
100
Ambient Temperature (GC)
VOUTXn=0.6V,
150
D013
Output Current=10mA,
Figure 12. Supply Current vs Ambient Temperature
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