SC5010H Datasheet, PDF (8/36 Pages) Semtech Corporation – High Efficiency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming

Typical Characteristics (continued)
LED String Current Matching vs. Temperature
40mA/string
1.2 %
0.8 %
0.4 %
0
-40 -20
0
20
40
60
Temperature (°C)
80 100
Switching Frequency vs. R_FSET
2400
2000
1600
1200
800
400
0
150
300
450
600
R_FSET (k Ω)
LED String Current Change vs. Analog
Dimming Control Register (IDAC) Value
100 %
90 %
80 %
70 %
60 %
50 %
40 %
30 %
20 %
10 %
0
4
8 12 16 20 24 28 32
IDAC Register Value (in decimal format)
SC5010H
LED String Current Accuracy vs. Temperature
50mA/string (nominal)
52.0
51.5
51.0
50.5
50.0
49.5
49.0
-40 -20
0
20
40
60 80 100
Temperature (°C)
LED String Current vs. R_ISET
0.05
0.04
0.03
0.02
0.01
0
25
50
75
100
125 150
R_ISET (k Ω)
LED String Current Matching vs. Analog
Dimming Control Register (IDAC) Value
40mA/string when IDAC = 31 (in decimal format)
2.0 %
1.6 %
1.2 %
0.8 %
0.4 %
-40 °C
0 °C
85 °C
25 °C
0
4
8 12 16 20 24 28 32
IDAC Register Value (in decimal format)