FAN5331_05 Datasheet, PDF (4/10 Pages) Fairchild Semiconductor – 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.
Output Voltage vs Input Voltage
14.98
14.96
14.94
14.92
14.90
14.88
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
14.86
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
Efficiency vs Input Voltage
0.92
0.90
0.88
0.86
0.84
0.82
0.80
0.78
0.76
0.74
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
0.72
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Supply Current vs Input Voltage
3.0
2.5
I_OUT = 0mA
2.0
Switching
1.5
Non Switching
1.0
0.5
0.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Maximum Load Current vs Input Voltage
231000
128500
150
200
120
150
90
16000
= ^12V
V OUT
= ^15V
V ^OUT
= ^21V
VOUT
350
00
22..55
33..00
33.5.5
44.0.0
44.5.5
5.50.0
5.55.5
Input Voltage (V)
Feedback Voltage vs Ambient Temperature
1.25 _{IOUT = 15mA}
1.24
1.23
1.22
1.21
-50
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)
0
50
100
Ambient Temperature (°C)
150
Switching Frequency vs Ambient Temperature
1.8
I_OUT = 15mA
V_OUT = 15V
V_IN = 3.6V
1.6
1.4
1.2
1.0
-40 -20
0 20 40 60 80 100 120 140
Ambient Temperature (°C)
4
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FAN5331 Rev. 1.0.1