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Temperature (
o
C)
L
ED C
ur
ren
t
Err
or
(%
)
-40 -20 0 20 40 60 80 100 120 140
-3
-2
-1
0
1
2
3
D012
ILED = 100mA
ILED = 300mA
ILED = 500mA
Temperature (
o
C)
L
ED C
ur
ren
t
Err
or
(%
)
-40 -20 0 20 40 60 80 100 120 140
-3
-2
-1
0
1
2
3
D011
ILED = 100mA
ILED = 300mA
ILED = 500mA
Temperature (
o
C)
L
ED C
ur
ren
t
Err
or
(%
)
-40 -20 0 20 40 60 80 100 120 140
-3
-2
-1
0
1
2
3
D010
ILED = 100mA
ILED = 300mA
ILED = 500mA
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Performance Data and Typical Characteristic Curves
6.4 Temperature Characteristics
Figure 13. LED Current Error vs. Ambient Temperature (VIN = 14 V, Number of LEDs in series = 3)
Figure 14. LED Current Error vs. Ambient Temperature (VIN = 14 V, Number of LEDs in series = 7)
Figure 15. LED Current Error vs. Ambient Temperature (VIN = 14 V, Number of LEDs in series = 13)
11 SLVUAL8 – December 2015 TPS92691 SEPIC LED Driver Evaluation Board
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