MB39A119 Datasheet, PDF (12/53 Pages) Fujitsu Component Limited. – DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery

MB39A119
■ TYPICAL CHARACTERISTICS
Power Supply Current vs. Power Supply Voltage
6
5
4
3
2
Ta = +25 °C
1
CTL = 5 V
0
0
5
10
15
20
25
Power supply voltage VCC (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
5.06
VCC = 19 V
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)
CTL Terminal Current, Reference Voltage vs.
CTL Terminal 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
V_REF
5
4
3
ICTL
2
1
0
5
10
15
20
25
CTL terminal voltage VCTL (V)
12
Error Amplifier Threshold Voltage vs.
Operating Ambient Temperature
4.25
4.24
4.23
4.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
−40 −20 0
VCC = 19 V
CTL = 5 V
20 40 60 80 100
Operating ambient temperature Ta ( °C)
(Continued)