CAT3604V
TYPICAL PERFORMANCE CHARACTERISTICS
(V IN = 3.6 V, I OUT = 80 mA (4 LEDs at 20 mA), C IN = C OUT = C 1 = C 2 = 1 m F, T AMB = 25 ° C unless otherwise specified.)
1.3
12
1.2
1.1
1.0
1.5x Mode
10
8
6
2x
1.33x
1.33x, 2x Mode
0.9
0.8
4
2
1.5x
1x
0.7
? 40
0
40
80
120
0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TEMPERATURE ( ° C)
Figure 9. Switching Frequency vs.
Temperature
INPUT VOLTAGE (V)
Figure 10. Output Resistance vs. Input Voltage
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1x Mode
40
30
20
10
0
0
100
200
300
400
0
0
50
100
150
200
250
300
100
10
OUTPUT CURRENT (mA)
Figure 11. Foldback Current Limit
LED PIN VOLTAGE (mV)
Figure 12. LED Current vs. LED Pin Voltage
1
1
10
100
RSET RESISTANCE (k W )
Figure 13. LED Current vs. RSET Resistance
Figure 14. Line Transient Response
(3.6 V to 4.9 V)
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6
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