MB3875 Fujitsu Media Devices, MB3875 Datasheet - Page 21

• Manufacturer Part Number: MB3875
• Description: DC/DC Converter IC for Charging
• Manufacturer: Fujitsu Media Devices

Note: KIKUSUI : KIKUSUI Electronics Corp.
REFERENCE DATA
•
MB3875
100
98
96
94
92
90
88
86
84
82
80
18
16
14
12
10
10 m
8
6
4
2
0
Conversion efficiency vs. charge current
0
BATT voltage vs. BATT charge current
efficiency
Dead Battery MODE
BATT charge voltage=12.6V f
BATT charge current I
BATT charge current I
(Fixed voltage mode)
1
Vin 16 V
100 m
DCC Dynamically-Controlled Charging
%)=(V
2
BATT
Vin=16v
BATT: Electronic load
(Product of KIKUSUI PLZ-150W)
I
BATT
3
)/(Vin
OSC
DCC MODE
1
BATT
=288.78kHz
Vin 19 V
BATT
Iin)
(A)
(A)
4
100
10
5
18
16
14
12
10
8
6
4
2
0
100
98
96
94
92
90
88
86
84
82
80
0
BATT voltage vs. BATT charge current
0
Conversion efficiency vs. charge voltage
Dead Battery MODE
2
BATT charge current I
BATT charge voltage V
1
Vin 16 V
R4 0
MB3875/MB3877
(Fixed current mode)
4
DCC Dynamically-Controlled Charging
6
2
BATT= Electronic load
(Product of KIKUSUI PLZ-150W)
Vin=19v
BATT:Electronic load
(Product of KIKUSUI PLZ-150W)
8
3
10
DCC MODE
Vin 19 V
R4 82 k
BATT
12
BATT
(A)
4
(V)
14
16
5
21