MB3887 Datasheet, PDF (12/33 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion battery

MB3887
■ TYPICAL CHARACTERISTICS
Power supply current vs. Power supply voltage
6
Ta = +25 °C
5
CTL = 5 V
4
3
2
1
0
0
5
10
15
20
25
Power supply voltage VCC (V)
Reference voltage
vs. Reference voltage output current
6
Ta = +25 °C
5
VCC = 19 V
CTL = 5 V
4
3
2
1
0
0
5
10 15 20 25 30
Reference voltage output current IREF (mA)
CTL terminal current, Reference voltage
vs. CTL terminal voltage
1000
10
900 ^{Ta = +25 °C}
9
VCC = 19 V
800
8
700
7
600
6
VREF
500
5
400
ICTL
4
300
3
200
2
100
1
0
0
0
5
10
15
20
25
CTL terminal voltage VCTL (V)
12
Reference voltage vs. Power supply voltage
6
5
4
3
2
Ta = +25 °C
1
CTL = 5 V
VREF = 0 mA
0
0
5
10
15
20
25
Power supply voltage VCC (V)
Reference voltage
vs. Operating ambient temperature
5.08
VCC = 19 V
5.06
CTL = 5 V
5.04
5.02
5.00
4.98
4.96
4.94
4.92
−40 −20 0
20 40 60 80 100
Operating ambient temperature Ta ( °C)
(Continued)