MB39A125 Datasheet, PDF (20/64 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion Battery

MB39A125/126
■ TYPICAL CHARACTERISTICS
Power Supply Current vs. Power Supply Voltage
6
5
4
3
2
1
Ta = +25 °C
CTL = 5 V
0
0
5
10
15
20
25
Power supply voltage VCC (V)
CTL Terminal Input Current, Reference Voltage vs.
CTL Terminal Input Voltage
1000
900
800
700
600
500
400
300
200
100
0
0
10
Ta = +25 °C
VCC = 19 V ⁹
VREF = 0 mA ₈
7
6
VREF
5
4
3
ICTL
2
1
0
5
10
15
20
25
CTL terminal input voltage VCTL (V)
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. Load Current
6
Ta = +25 °C
5
VCC = 19 V
CTL = 5 V
4
3
2
1
0
0
5
10 15 20 25 30 35
Load current IREF (mA)
Reference Voltage vs.
Operating Ambient Temperature
5.08
VCC = 19 V
5.06
CTL = 5 V
VREF = 0 mA
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)
20
Triangular Wave Oscillation Frequency vs.
Power Supply Voltage
340
Ta = +25 °C
330
CTL = 5 V
RT = 47 kΩ
320
310
300
290
280
270
260
0
5
10
15
20
25
Power Supply Voltage VCC (V)
(Continued)