MB3878 Datasheet, PDF (7/24 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3878
Parameter
(Ta = +25 °C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
Symbol
Pin
No.
Conditions
Min.
Value
Typ.
Unit
Max.
Threshold voltage
Input current
VTH1
VTH2
IINE3
16 FB3 = 2 V, Ta = +25 °C 4.167 4.200 4.233 V
16
FB3 = 2 V,
Ta = −30 °C to +85 °C
4.158
4.200
4.242
V
16 −INE3 = 0 V
−100 −30
 nA
Voltage gain
AV
15 DC

100*  dB
Error amplifier
block
(Error Amp.3)
Frequency
bandwidth
Output voltage
Output source
current
Output sink current
BW
VFBH
VFBL
ISOURCE
ISINK
15 AV = 0 dB
15

15

15 FB3 = 2 V
15 FB3 = 2 V

2.0*
 MHz
4.7
4.9

V

20
200 mV

−2.0 −0.6 mA
150 300
 µA
OUTD pin output _{ILEAK 11 OUTD = 16.8 V}
leak current

0
1
µA
OUTD pin output
RON
11 OUTD = 1 mA
ON resistor

70
100 Ω
I+INCH
13, +INC1 = +INC2 = 12.7 V,
24 ^{−INC1 = −INC2 = 12.6 V}

10
20 µA
Input current
I−INCH
1, +INC1 = +INC2 = 12.7 V,
12 ^{−INC1 = −INC2 = 12.6 V}

0.1
I+INCL
13, +INC1 = +INC2 = 0.1 V,
24 ^{−INC1 = −INC2 = 0 V}
−130
−65
0.2 µA
 µA
I−INCL
1, +INC1 = +INC2 = 0.1 V,
12 ^{−INC1 = −INC2 = 0 V}
−140
−70
 µA
VOUTC1
2, +INC1 = +INC2 = 12.7 V,
10 ^{−INC1 = −INC2 = 12.6 V}
2.25
2.5
2.75 V
Current
detection
Current detection
VOUTC2
2, +INC1 = +INC2 = 12.63 V,
10 ^{−INC1 = −INC2 = 12.6 V}
0.50
0.75
1.00
V
amplifier block _voltage
(Current Amp.1,
Current Amp.2)
VOUTC3
2, +INC1 = +INC2 = 0.1 V,
10 ^{−INC1 = −INC2 = 0 V}
1.25
2.50
3.75
V
VOUTC4
2, +INC1 = +INC2 = 0.03 V,
10 ^{−INC1 = −INC2 = 0 V}
0.125
0.750
1.375
V
Common mode
input voltage
range
1,
VCM
12,
13,
24

0

Vcc V
Voltage gain
AV
2, +INC1 = +INC2 = 12.7 V,
10 −INC1 = −INC2 = 12.6 V
22.5
25
27.5 V/V
Frequency
bandwidth
BW
2,
10
AV = 0 dB

2.0*
 MHz
* : Standard design value.
(Continued)
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