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MB3887_06 Datasheet, PDF (13/34 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion battery | |||
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MB3887
Error amplifier gain and phase vs. Frequency
Ta = +25 °C
40
180
AV
Ï
20
90
0
0
â20
â90
â40
â180
10 kâ¦
1 µF+
IN
10 kâ¦
2.4 kâ¦
10 k⦠10 kâ¦
VCC = 19 V
4.2 V
240 kâ¦
8â
(4)
7
9+
(5) OUT
(3) Error Amp1
(Error Amp2)
1k
10 k
100 k
1M
10 M
Frequency f (Hz)
Error amplifier gain and phase vs. Frequency
Ta = +25 °C
40
180
AV
Ï
20
90
0
0
â20
â90
â40
â180
4.2 V VCC = 19 V
10 kâ¦
1 µF+
IN
10 kâ¦
10 k⦠240 kâ¦
2.4 kâ¦
10 kâ¦
16 â
22 +
15
+
Error Amp3
4.2 V
OUT
1k
10 k
100 k
1M
10 M
Frequency f (Hz)
Current detection amplifier gain and phase vs. Frequency
40
AV
Ta = +25 °C
180
20
Ï
90
0
0
12.6 V
â20
â90
VCC = 19 V
13 +
(24) Ã20
10
12 â
(2)
(1) Current Amp1
(Current Amp2)
OUT
12.55 V
â40
1k
10 k
100 k
1M
Frequency f (Hz)
â180
10 M
(Continued)
13
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