MB3875_03 Datasheet, PDF (8/26 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
+INC1= +INC2=12.7 V
–INC1= –INC2=12.6 V
—
10
20 µA MB3875
I+INCH 13, 24
+INC1= +INC2=16.9 V
–INC1= –INC2=16.8 V
—
10
20 µA MB3877
Input current
+INC1= +INC2=12.7 V
–INC1= –INC2=12.6 V
—
0.1 0.2 µA MB3875
I–INCH 1, 12
+INC1= +INC2=16.9 V
–INC1= –INC2=16.8 V
—
0.1 0.2 µA MB3877
I+INCL
13, 24
+INC1= +INC2= 0.1 V
–INC1= –INC2= 0 V
–130
–65
— µA
I–INCL
1, 12
+INC1= +INC2= 0.1V
–INC1= –INC2= 0 V
–140
–70
— µA
+INC1= +INC2=12.7 V
–INC1= –INC2=12.6 V
2.25
2.5
2.75
V MB3875
VOUTC1 4, 10
+INC1= +INC2=16.9 V
–INC1= –INC2=16.8 V
2.25
2.5
2.75
V MB3877
Current detection
voltage
VOUTC2
+INC1= +INC2=12.63V
–INC1= –INC2=12.6 V
0.50
4, 10
+INC1= +INC2=16.83V
–INC1= –INC2=16.8 V
0.50
0.75
0.75
1.00
1.00
V MB3875
V MB3877
VOUTC3
4, 10
+INC1= +INC2= 0.1 V
–INC1= –INC2= 0 V
1.25
2.50
3.75
V
VOUTC4
4, 10
+INC1= +INC2= 0.03 V
–INC1= –INC2= 0 V
0.125
0.750
1.375
V
Common mode
input voltage range
VCM
1, 12,
13, 24
—
0
—
VCC
V
Voltage gain
+INC1= +INC2=12.7 V
–INC1= –INC2=12.6 V
22.5
25
27.5 V/V MB3875
AV 4, 10
+INC1= +INC2=16.9 V
–INC1= –INC2=16.8 V
22.5
25
27.5 V/V MB3877
Frequency
bandwidth
BW 4, 10 AV = 0 dB
— 2.0* — MHz
VOUTCH 4, 10
—
Output voltage
VOUTCL 4, 10
—
3.9 4.1
V
—
20 200 mV
Output source
current
ISOURCE 4, 10 OUTC1 = OUTC2 = 2 V — –2.0 –0.6 mA
Output sink
current
ISINK 4, 10 OUTC1 = OUTC2 = 2 V 150 300
— µA
*: Standard design value.
(Continued)
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