MB39A113 Datasheet, PDF (37/51 Pages) Fujitsu Component Limited. – ASSP for Power Supply Applications (Secondary Battery)

MB39A113
Conversion Efficiency vs. Charge Current
(constant voltage mode)
100
98
96
94
92
90
88
86
84
82
80
0.01
Ta = + 25 °C
VAC = 19 V
VBATT = 16.8 V setting
η = (VBATT × IBATT) / (VAC × IAC)
Converted to VBATT
0.1
1
10
IBATT (A)
Conversion Efficiency vs. Charge Voltage
(constant current mode)
100
98
96
94
92
90
88
86
Ta = + 25 °C
VAC = 19 V
84
IBATT = 3 A setting
82
η = (VBATT × IBATT) / (VAC × IAC)
Converted to VBATT
80
0 2 4 6 8 10 12 14 16
VBATT (V)
BATT Voltage vs. BATT Charge Current (16.8 V setting)
18
16
D.C.C. Mode
14
12
Dead Battery Mode
10
8
6
Ta = + 25 °C
4
VAC = 19 V
VBATT = 16.8 V setting
2
D.C.C. Mode : Dynamically-controlled charging
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
IBATT (A)
(Continued)
37