TL4242_10 Datasheet, PDF (5/14 Pages) Texas Instruments – ADJUSTABLE LED DRIVER

TL4242
www.ti.com .............................................................................................................................................................. SLVS641A – APRIL 2008 – REVISED MAY 2009
TYPICAL CHARACTERISTICS
700
600
500
400
300
200
100
0
0
178.5
0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25
R_REF – 8W
Figure 1. Output Current vs External Resistor
450
400
350
300
250
200
150
100
50
0
-50
0
5 10 15 20 25 30 35 40
V_CC – Supply Voltage – V
Figure 2. Output Current vs Supply Voltage
60
178.0
50
40
177.5
30
177.0
20
176.5
10
176.0
0
175.5
-40 -20 0 20 40 60 80 100 120 140
T_J – Virtual Junction Temperature – °C
Figure 3. Reference Voltage vs Junction Temperature
-10
0
10
20
30
40
V_PWM – PWM Voltage – V
Figure 4. PWM Pin Input Current vs PWM Voltage
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