CAT3614
TYPICAL CHARACTERISTICS
(V IN = 3.6 V, I OUT = 80 mA (4 LEDs at 20 mA), C 1 = C 2 = C IN = C OUT = 1 m F, T AMB = 25 ° C unless otherwise specified.)
5
4
3
5
4
3
2
1
0
? 1
? 2
? 3
? 4
1.5x Mode
1x Mode
2
1
0
? 1
? 2
? 3
? 4
? 5
3.0
3.2
3.4
3.6
3.8
4.0
4.2
? 5
? 40
? 20
0
20
40
60
80
1.3
1.2
1.1
1.0
0.9
0.8
INPUT VOLTAGE (V)
Figure 9. LED Current Change vs. Input
Voltage
4 LEDs at 20 mA
1.3
1.2
1.1
1.0
0.9
0.8
TEMPERATURE ( ° C)
Figure 10. LED Current Change vs.
Temperature
0.7
3.0
3.2
3.4
3.6
3.8
4.0
0.7
? 40
0
40
80
120
1.0
0.8
0.6
0.4
0.2
INPUT VOLTAGE (V)
Figure 11. Oscillator Frequency vs. Input
Voltage
4.0
3.5
3.0
2.5
2.0
1.5
TEMPERATURE ( ° C)
Figure 12. Oscillator Frequency vs.
Temperature
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
1.0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE (V)
Figure 13. Output Resistance vs. Input Voltage
(1x Mode)
INPUT VOLTAGE (V)
Figure 14. Output Resistance vs. Input Voltage
(1.5x Mode)
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5
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