CAT4201 Datasheet, PDF (3/15 Pages) Catalyst Semiconductor – 350mA High Efficiency Step Down LED Driver

CAT4201
Typical Operation Characteristics
V_IN = 13V, I_LED = 300mA, L = 22μH, C₁= 4.7μF, C₂ = 10μF, T_AMB = 25°C unless otherwise specified
Input Operating Supply Current
1.0
Idle Mode Supply Current (CTRL = 0V)
200
0.8
150
0.6
100
0.4
0.2
50
0.0
8 10 12 14 16 18 20 22 24
INPUT VOLTAGE [V]
0
0 4 8 12 16 20 24
INPUT VOLTAGE [V]
CTRL Input Bias Current
250
200
150
100
50
0
0 2 4 6 8 10 12
CTRL VOLTAGE [V]
RSET Voltage vs. Temperature
1.30
VIN = 13V
1.25
1.20
1.15
1.10
-40
0
40
80 120
TEMPERATURE [°C]
RSET Voltage vs. CTRL Voltage
1.4
1.2
1.0
+25°C
0.8
-40°C
+ 85°C
0.6
0.4
0.2
0.0
0
1
2
3
4
CTRL VOLTAGE [V]
LED Current vs. RSET
400
300
200
100
0
5 10 15 20 25 30 35
RSET [kΩ]
© Catalyst Semiconductor, Inc.
3
Characteristics subject to change without notice
Doc. No. MD-5025 Rev. D