Integrated High-Voltage LED Driver
with Analog and PWM Dimming Control
Typical Operating Characteristics
(V IN = V EN = 12V, C L_REG = 3.3μF, C H_REG = 1μF, V TGRM = 0V, T A = +25°C, unless otherwise noted.)
SWITCH CURRENT LIMIT
0.45
R DS(ON) vs. I LX
2.0
R DS(ON) vs. V GT
3.300
vs. TEMPERATURE
0.40
1.8
T A = +25 ° C
3.250
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
T A = +125 ° C
T A = +25 ° C
T A = -40 ° C
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
3.200
3.150
3.100
3.050
3.000
2.950
2.900
1.0
1.5
2.0
2.5
3.0
2.2
2.8
3.4
4.0
4.6
5.2
5.8
6.4
7.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
I LX (A)
SHUTDOWN CURRENT
vs. TEMPERATURE
V GT (V)
V REF vs. TEMPERATURE
TEMPERATURE ( ° C)
IN UVLO THRESHOLD
vs. TEMPERATURE
30
1.25
5.20
V IN RISING
25
20
1.24
5.15
15
10
1.23
1.22
5.10
5.05
5
I REF = 10 μ A
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
IN UVLO THRESHOLD
vs. TEMPERATURE
1.21
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
5.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
EN UVLO THRESHOLD
vs. TEMPERATURE
5.10
5.09
V IN FALLING
1.50
1.45
V EN RISING
5.08
5.07
5.06
5.05
5.04
5.03
5.02
5.01
5.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
_______________________________________________________________________________________
5
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