cat4240 Catalyst Semiconductor, cat4240 Datasheet - Page 3

• Manufacturer Part Number: cat4240
• Description: 6 Watt Boost Led Driver
• Manufacturer: Catalyst Semiconductor

TYPICAL CHARACTERISTICS
VIN = 5V, V
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Quiescent Current vs. VIN (Not Switching)
Switching Frequency vs. Supply Voltage
L
FB pin voltage vs. Temperature
303
302
301
300
299
298
297
1.2
1.1
1.0
0.9
0.8
200
150
100
= 13V, T
50
-50
3.0
3.0
AMB
3.5
3.5
INPUT VOLTAGE [V]
INPUT VOLTAGE [V]
TEMPERATURE [ºC]
0
= 25ºC, typical application circuit unless otherwise specified.
V
FB
4.0
4.0
= 0.4V
50
4.5
4.5
100
5.0
5.0
5.5
5.5
150
3
Switch ON Resistance vs. Input Voltage
Quiescent Current vs. VIN (Switching)
FB Pin Voltage vs. Output Current
2.0
1.5
1.0
0.5
0.0
310
305
300
295
290
2.0
1.5
1.0
0.5
0.0
3.0
3.0
0
OUTPUT CURRENT [mA]
4 LEDs
3.5
INPUT VOLTAGE [V]
3.5
INPUT VOLTAGE [V]
50
4.0
4.0
100
4.5
4.5
150
5.0
5.0
Doc. No. MD-5026 Rev. C
200
CAT4240
5.5
5.5