Data Sheet

4 www.fairchildsemi.com
FAN5331 Rev. 1.0.1
FAN5331 High Efficiency Serial LED Driver and OLED Supply with 20V Integrated Switch
Typical Performance Characteristics
T
A
= 25°C, Test Circuit Figure 3, unless otherwise noted.
-50 0 50 100 150
1.21
1.22
1.23
1.24
1.25
Temperature (°C) vs Vf (Vin=2.7V, Iload=15mA)
Temperature (°C) vs Vf (Vin=3.6V, Iload=15mA)
Temperature (°C) vs Vf (Vin=5.5V, Iload=15mA)
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
14.86
14.88
14.90
14.92
14.94
14.96
14.98
VIN(V) vs VOUT(V) at Iload=0mA
VIN(V) vs VOUT(V), at load=10mA
VIN(V) vs VOUT(V), at load=20mA
VIN(V) vs VOUT(V) at Iload=30mA
VIN(V) vs VOUT(V) at Iload=40mA
VIN(V) vs VOUT(V) at Iload=50mA
Output Voltage vs Input Voltage
Output Voltage (V)
Input Voltage (V)
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
0.72
0.74
0.76
0.78
0.80
0.82
0.84
0.86
0.88
0.90
0.92
VIN(V) vs Efficiency at Iload =10mA
VIN(V) vs Efficiency at Iload =20mA
VIN(V) vs Efficiency at Iload =30mA
VIN(V) vs Efficiency at Iload =40mA
VIN(V) vs Efficiency at Iload =50mA
Efficiency
Input Voltage (V)
Efficiency vs Input Voltage
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Supply Current vs Input Voltage
Supply Current (mA)
Input Voltage (V)
Switching
Non Switching
-40 -20 0 20 40 6080100 120140
1.0
1.2
1.4
1.6
1.8
Switching Frequency (MHz)
Ambient Temperature (°C)
Switching Frequency vs Ambient Temperature
I
OUT
= 15mA
V
OUT
= 15V
V
IN
= 3.6V
Feedback Voltage vs Ambient Temperature
I
OUT
= 15mA
Ambient Temperature (°C)
Feedback Voltage (V)
2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
50
100
150
200
250
300
I
OUT
= 0mA
2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
30
60
90
120
150
180
210
Maximum Load Current vs Input Voltage
Maximum Load Current (mA)
Input Voltage (V)
V
O
U
T
=
1
2
V
V
O
U
T
=
15
V
V
O
U
T
=
2
1
V