MB3873 Datasheet, PDF (19/22 Pages) Fujitsu Component Limited. – Multi-Resonance AC/DC Converter IC

MB3873
s REFERENCE DATA
Output voltage vs. input voltage (Output voltage = 18 V)
18.2
OUT = 3 A
RT = 33 kΩ
18.1
CT = 220 pF
Vin frequency = 50 Hz
18.0
17.9
17.8
0
50 100 150 200 250 300
Input voltage Vin (V)
Conversion efficiency vs. input voltage
(Output voltage = 18 V)
100
90
80
OUT = 3 A
RT = 33 kΩ
70
CT = 220 pF
Vin frequency = 50 Hz
60
50
0
50 100 150 200 250 300
Input voltage Vin (V)
Control frequency vs. input voltage
(Output voltage = 18 V)
300
280
260
240
220
200
180
160
140
120
100
0
RT = 33 kΩ
CT = 220 pF
OUT = 0 A
OUT = 3 A
50 100 150 200 250 300
Input voltage Vin (V)
Output voltage vs. load current (Output voltage = 18 V)
18.2
18.1
Vin = AC100 V (50 Hz)
RT = 33 kΩ
CT = 220 pF
18.0
17.9
17.8
0 0.5 1 1.5 2 2.5 3 3.5
Load current IO (A)
Conversion efficiency vs. load current
(Output voltage = 18 V)
100
Vin = AC100 V (50 Hz)
RT = 33 kΩ
90
CT = 220 pF
80
70
60
50
0 0.5 1 1.5 2 2.5 3 3.5
Load current IO (A)
19