CAT4101_12 Datasheet, PDF (4/9 Pages) ON Semiconductor – 1 A Constant-Current LED Driver

CAT4101
TYPICAL PERFORMANCE CHARACTERISTICS
(V_IN = 5 V, V_CC = 5 V, V_F = 3.5 V, I_LED = 1 A (1 LED), C_IN = 1 mF, T_AMB = 25°C unless otherwise specified.)
1.2
8.0
No Load
1.0
6.0
0.8
4.0
0.6
2.0
0.4
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
Figure 3. Quiescent Current vs. VIN Voltage
(I_LED = 0 mA)
8.5
Full Load
8.0
7.5
7.0
6.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
Figure 5. Quiescent Current vs. VIN Voltage
(Full Load)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Figure 7. LED Current Change vs. VIN Voltage
0
0
200
400
600
800 1000
LED CURRENT (mA)
Figure 4. Quiescent Current vs. LED Current
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0.3
0.6
0.9
1.2
1.5
LED PIN VOLTAGE (V)
Figure 6. LED Current vs. LED Pin Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
−40
0
40
80
120
TEMPERATURE (°C)
Figure 8. LED Current Change vs.
Temperature
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