CAT4026_11 Datasheet, PDF (5/14 Pages) ON Semiconductor – 6-Channel LED Controller

CAT4026
TYPICAL PERFORMANCE CHARACTERISTICS
(V_DD = V_PWM = 5 V, V_ANLG = 3.3 V, T_AMB = 25°C unless otherwise specified.)
1.4
16
1.2
VIH
1.0
VIL
0.8
0.6
12
25°C
−40°C
8
125°C
0.4
80°C
4
0.2
0
−40 −10
20
50
80
110
140
TEMPERATURE (°C)
Figure 3. PWM Threshold Voltage vs.
Temperature
0
4.50
4.75
5.00
5.25
5.50
VDD VOLTAGE (V)
Figure 4. Quiescent Current vs. Temperature
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.0
2.5
3.0
3.5
4.0
4.5
VCS VOLTAGE (V)
Figure 5. IFB Sink Current vs. VCS Voltage
1.02
1.01
R_SETX = 1 kW
1.00
0.99
0.98
0.97
0.96
0.95
−40 −10
20
50
80
110 140
TEMPERATURE (°C)
Figure 6. RSET Voltage vs. Temperature
120
100
80
60
40
20
0
0
1
2
3
4
ANLG VOLTAGE (V)
Figure 7. LED Brightness vs. ANLG Voltage
1.0
0.8
0.6
Ch2
0.4
Ch6
0.2
Ch4
0
−0.2
Ch5
−0.4
Ch1
−0.6
Ch3
−0.8
−1.0
3
6
9
12
15
18
21
CATHODE VOLTAGE (V)
Figure 8. Matching Channel−to−Channel vs.
Cathode Voltage
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