MB39A125 Datasheet, PDF (59/64 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion Battery

MB39A125/126
Soft-start operating waveform (Constant Current Mode)
Vo
Vo
lo
VIN = 19 V
(A)
Io = 3 A setting
SW2 = OFF
(V)
18
lo
(A)
VIN = 19 V
Io = 3 A setting
SW2 = OFF
(V)
18
5
16 5
16
4
14 4
14
Vo
3
12 3
12
Vo
lo
2
10 2
10
1
CTL 1
CTL
lo
(V)
(V)
0
10 ₀
CTL
10
CTL
0
0
0 5 10 15 20 25 30 35 40 45 50 (ms)
0 5 10 15 20 25 30 35 40 45 50 (ms)
Soft-start operating waveform (Constant Voltage Mode)
Vo
Vo
lo
(A)
Vo
(V)
18
lo
(A)
Vo
(V)
18
5
16 5
16
4
14 4
14
3
VIN = 19 V
2
Vo = 16.8 V setting
SW2 = OFF
12 3
10 ₂
VIN = 19 V
Vo = 16.8 V setting
SW2 = OFF
12
10
1
lo
CTL 1
(V)
lo
CTL
(V)
0
10 ₀
CTL
10
CTL
0
0
0 5 10 15 20 25 30 35 40 45 50 (ms)
0 5 10 15 20 25 30 35 40 45 50 (ms)
(Continued)
59