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Part Name
Description
MB3878 View Datasheet(PDF) - Fujitsu
Part Name
Description
Manufacturer
MB3878
DC/DC Converter IC for Charging
Fujitsu
MB3878 Datasheet PDF : 24 Pages
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MB3878
(Continued)
Error amplifier gain and phase vs. frequency
Ta
= +
25
°
C
40
A
V
180
20
φ
90
0
0
−
20
−
90
−
40
−
180
1k
10 k 100 k
1M
10 M
Frequency f (Hz)
Current detection amplifier gain and phase
vs. frequency
φ
Ta
= +
25
°
C
40
180
5.2 V
VCC
=
19 V
240 k
Ω
IN
1
µ
F
−+
10 k
Ω
2.4 k
Ω
10 k
Ω
8
−
(4)
OUT
7
9
+
(5)
(3)
2.5 V
Error Amp.1
(Error Amp.2)
20
A
V
90
VCC
=
19 V
0
0
−
20
−
90
−
40
1k
10 k
100 k
1M
Frequency f (Hz)
−
180
10 M
12.6 V
13
+
(24)
×
25
OUT
10
12
−
(2)
(1)
12.55 V
Current Amp.1
(Current Amp.2)
Power dissipation vs. ambient temperature
800
740
700
600
500
400
300
200
100
0
−
40
−
20 0 20 40 60 80 100
Ambient temperature Ta (
°
C)
11
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