TPS92551 Datasheet, PDF (10/21 Pages) Texas Instruments – 450mA 23W Constant Current Buck LED Driver Micro-Module

1000
800
I_LED vs V_IN
V_LED = 0V, DIM = open
TJ=-40°C
TJ=25°C
600
TJ=125°C
400
200
0
0 10 20 30 40 50 60
VIN (V)
30172759
I_LED vs Dimming Duty Ratio
100
90
VIN=48V(8LED)
80
70
60 ^{VIN=36V(6LED)}
50
40
30
20
10
VIN=60V(11LED)
0
0 10 20 30 40 50 60 70 80 90 100
DIM DUTY RATIO (%)
30172719
Frequency Deviation vs V_IN
(800kHz)
3
2
1 TJ=25°C
0
TJ=-40°C
-1
-2
TJ=125°C
-3
20 25 30 35 40 45 50 55 60
VIN (V)
30172761
I_IN vs V_IN
V_LED = 0V, DIM = open
100
80
TJ=125°C
60
40
TJ=-40°C
TJ=25°C
20
0
0 10 20 30 40 50
VIN (V)
I_LED vs Dimming Duty Ratio
1.0
60
30172760
0.8
0.6 ^{VIN=48V(8LED)}
0.4
0.2
0.0
0.0
VIN=60V(11LED)
VIN=36V(6LED)
0.2 0.4 0.6 0.8 1.0
DIM DUTY RATIO (%)
30172720
I_LED Regulation vs Temperature
3
2
VIN=48V(8LED)
1
0
-1 _{VIN=60V(11LED)}
-2
-3
-50
VIN=36V(6LED)
-25 0 25 50 75 100 125
TEMPERATURE (°C)
30172722
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