CAT4109 Datasheet, PDF (5/12 Pages) ON Semiconductor – 3-Channel Constant-Current RGB LED Driver with Individual PWM Dimming

CAT4109
TYPICAL PERFORMANCE CHARACTERISTICS
(V_IN = 5 V, V_DD = 5 V, C1 = 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. Input Voltage
(I_LED = 0 mA)
6.0
Full Load
5.5
5.0
4.5
4.0
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
Figure 5. Quiescent Current vs. Input Voltage
(I_LED = 175 mA)
200
160
120
80
40
0
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
Figure 7. LED Current Change vs. Input
Voltage
0
0
100
200
300
400
RSET CURRENT (mA)
Figure 4. Quiescent Current vs. RSET Current
200
160
120
80
40
0
0
0.2
0.4
0.6
0.8
1.0
LED PIN VOLTAGE (V)
Figure 6. LED Current vs. LED Pin Voltage
200
160
120
80
40
0
−40
0
40
80
120
TEMPERATURE (°C)
Figure 8. LED Current Change vs.
Temperature
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