CAT4201_15 Datasheet, PDF (3/12 Pages) ON Semiconductor – High Efficiency Step Down LED Driver

CAT4201
TYPICAL OPERATION CHARACTERISTICS
(V_IN = 13 V, I_LED = 300 mA, L = 22 mH, C₁ = 4.7 mF, C₂ = 10 mF, T_AMB = 25°C unless otherwise specified)
1.0
200
0.8
0.6
0.4
0.2
0
8 10 12 14 16 18 20 22 24
INPUT VOLTAGE (V)
Figure 2. Input Operating Supply Current
250
200
150
100
50
0
0
2
4
6
8
10
12
CTRL VOLTAGE (V)
Figure 4. CTRL Input Bias Current
150
100
50
0
0
4
8
12
16
20
24
INPUT VOLTAGE (V)
Figure 3. Idle Mode Supply Current
(CTRL = 0 V)
1.30
1.25
V_IN = 13 V
1.20
1.15
1.10
−40
0
40
80
120
TEMPERATURE (°C)
Figure 5. RSET Voltage vs. Temperature
1.4
1.2
1.0
0.8
+25°C
0.6
−40°C
+85°C
0.4
0.2
0
0
1
2
3
4
CTRL VOLTAGE (V)
Figure 6. RSET Voltage vs. CTRL Voltage
400
300
200
100
0
5
10
15
20
25
30
35
RSET (kW)
Figure 7. LED Current vs. RSET
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