MB3875_03 Datasheet, PDF (7/26 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3875/3877
(MB3875: Ta = +25°C, VCC = 16 V, VCC (O) = 16 V, VREF = 0 mA)
(MB3877: Ta = +25°C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
Parameter
Symbol Pin No
Conditions
Value
Unit Remarks
Min Typ Max
Input offset
voltage
VIO 6,7,8,11 FB1 = FB2 = 2 V
—
1
5 mV
Input bias
current
IB 6,7,8,11
—
–100 –30
— nA
Common
mode input
VCM 6,7,8,11
—
voltage range
0
— VCC–1.8 V
Voltage gain
AV
3,9 DC
— 100* — dB
Frequency
bandwidth
BW
3,9 AV = 0 dB
—
2.0*
— MHz
VFBH
3,9
—
3.9
4.1
—
V
Output voltage
VFBL
3,9
—
—
20
200 mV
Output source
current
ISOURCE
3,9 FB1 = FB2 = 2 V
— –2.0 –0.6 mA
Output sink
current
ISINK
3,9 FB1 = FB2 = 2 V
150 300
— µA
Threshold
voltage
FB3 = 2 V,
12.500 12.600 12.700 V MB3875
Ta = +25 °C
VTH
2
FB3 = 2 V,
16.666 16.800 16.934
12.474 12.600 12.726
V MB3877
V MB3875
Ta = –30 °C to +85 °C _{16.632 16.800 16.968 V MB3877}
Input current
IINE3H
IINE3L
IN3 = 12.6 V
—
2
IN3 = 16.8 V
—
VCC = 0 V, IN3 = 12.6 V —
2
VCC = 0 V, IN3 = 16.8 V —
84
150 µA MB3875
84
150 µA MB3877
0
1
µA MB3875
0
1
µA MB3877
R1
2
Input resistor
70
100
130 kΩ MB3875
—
105 150 195 kΩ MB3877
R2
16
—
35
50
65 kΩ
Voltage gain
AV
15 DC
— 100* — dB
Frequency
bandwidth
BW
15 AV = 0 dB
—
2.0*
— MHz
VFBH
15
Output voltage
VFBL
15
—
3.9
4.1
—
V
—
—
20
200 mV
Output source
current
ISOURCE
15 FB3 = 2 V
— –2.0 –0.6 mA
Output sink
current
ISINK
15 FB3 = 2 V
150 300
— µA
*: Standard design value.
(Continued)
7