TL4242QKTTRQ1 Datasheet, PDF (6/21 Pages) Texas Instruments – ADJUSTABLE LED DRIVER

TL4242-Q1
SLVS732E – JULY 2010 – REVISED JULY 2013
TYPICAL CHARACTERISTICS
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OUTPUT CURRENT
versus
EXTERNAL RESISTANCE
700
600
500
400
300
200
100
0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25
External Reference (
C001
Figure 2.
178.5
REFERENCE VOLTAGE
versus
JUNCTION TEMPERATURE
450
400
350
300
250
200
150
100
50
0
±50
0
60
OUTPUT CURRENT
versus
SUPPLY VOLTAGE
5
10 15 20 25 30 35 40
Supply Voltage (V)
C002
Figure 3.
PWM PIN INPUT CURRENT
versus
PWM VOLTAGE
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
Virtual Junction Temperature ( C)
C003
Figure 4.
±10
0
10
20
30
40
PWM Voltage (V)
C004
Figure 5.
6
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