MB3878 Datasheet, PDF (9/24 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3878
s TYPICAL CHARACTERISTICS
Power supply current vs. power supply voltage
12
Ta = +25 °C
10
CTL = 5 V
8
6
4
2
0
0
5
10
15
20
25
Power supply voltage VCC (V)
Reference voltage vs. VREF load current
10
Ta = +25 °C
VCC = 19 V
8
CTL = 5 V
6
4
2
0
0
5
10 15 20 25 30
VREF load current IREF (mA)
Reference voltage vs. CTL pin voltage
10
Ta = +25 °C
VCC = 19 V
8
VREF = 0 mA
6
4
2
0
0
0.5
1
1.5
2
2.5
CTL pin voltage VCTL (V)
Reference voltage vs. power supply voltage
10
Ta = +25 °C
CTL = 5 V
8
VREF = 0 mA
6
4
2
0
0
5
10
15
20
25
Power supply voltage VCC (V)
Reference voltage vs. ambient temperature
2.0
VCC = 19 V
1.5
CTL = 5 V
VREF = 0 mA
1.0
0.5
0.0
−0.5
−1.0
−1.5
−2.0
−40 −20 0
20 40 60 80 100
Ambient temperature Ta ( °C)
CTL pin current vs. CTL pin voltage
1.0
Ta = +25 °C
VCC = 19 V
0.8
0.6
0.4
0.2
0.0
0
5
10
15
20
25
CTL pin voltage VCTL (V)
(Continued)
9