CAT4004
TYPICAL PERFORMANCE CHARACTERISTICS
(V IN = 4 V, V F = 3.3 V, I OUT = 80 mA (4 LEDs at 20 mA), C IN = 1 m F, T AMB = 25 ° C unless otherwise specified.)
1.4
1.2
1.0
0.8
1.4
1.2
1.0
0.8
0.6
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.6
? 40
0
40
80
120
1.0
0.8
0.6
0.4
0.2
0
? 0.2
? 0.4
? 0.6
? 0.8
INPUT VOLTAGE (V)
Figure 3. Quiescent Current vs. Input Voltage
10
8
6
4
2
0
? 2
? 4
? 6
? 8
TEMPERATURE ( ° C)
Figure 4. Quiescent Current vs. Temperature
? 1.0
3.0
3.5
4.0
4.5
5.0
5.5
? 10
? 40
0
40
80
120
INPUT VOLTAGE (V)
Figure 5. LED Current Change vs. Input
Voltage
40
30
20
10
TEMPERATURE ( ° C)
Figure 6. LED Current Change vs.
Temperature
0
0
5
10
15
20
RSET (k W )
Figure 7. LED Current vs. RSET Resistor
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4
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