TCA62735AFLG Datasheet, PDF (9/18 Pages) Marktech Corporate – Charge Pump type DC/DC Converter for White LED Driver

TCA62735AFLG
Reference data
*This data is provided for reference only. Thorough evaluation and testing should be implemented when
designing your application's mass production design.
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. IOUT
LED V_f=3.3V
T_a=25°C
20 40 60 80
IOUT (mA)
VIN = 3.0V
VIN = 3.3V
VIN = 3.6V
VIN = 3.9V
VIN = 4.2V
100 120
Efficiency vs. VIN
100
90
80
70
60
50
40
30
20
10
4LEDs at 20mA LED Vf=3.51V
T_a=25°C
0
4.3 4.1 3.9 3.7 3.5 3.3 3.1 2.9 2.7
VIN (V)
Quiescent Current vs. VIN
4.0
3.5
T_a=25°C
3.0
2.5
2.0
1.5
1.0
4LEDs at 30mA
0.5
4LEDs at 20mA
4LEDs at 5mA
0.0
2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2
VIN (V)
Quiescent Current vs. IOUT Current
4.0
VIN=2.7V
3.5
VIN=3.6V
VIN=4.3V
3.0
2.5
2.0
1.5
1.0
0.5
T_a=25°C
0.0
20
40
60
80 100 120
IOUT Current (mA)
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2007-06-21