MB39A125 Datasheet, PDF (22/64 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion Battery

MB39A125/126
Error Amplifier, Gain, Phase vs. Frequency
Ta = +25 °C
40
VCC = 19 V 180
30
20
φ
90
10
Av
0
0
−10
−20
−90
−30
−40
−180
100 1k
10k 100k 1M
10M
Frequency f (Hz)
Error Amplifier, Gain, Phase vs. Frequency
Vcc = 19 V
10
10
kΩ
kΩ
IN _{1 µF 2.4 kΩ}
+
10
10
kΩ
kΩ
4.2 V
240 kΩ
−INE1, 2
8−
(4)
9+
FB123
15
(3)
+INE1, 2
Error Amp1
(Error Amp2)
OUT
Ta = +25 °C
40
VCC = 19 V 180
30
20
φ
90
10
kΩ
240 kΩ
10
0
Av
0
IN _{1µF+ 2.4 kΩ}
−INE3
16 −
FB123 OUT
15
−10
+
−20
−30
−90
10
kΩ
4.2 V
Error Amp3
−40
−180
100 1k
10k 100k 1M
10M
Frequency f (Hz)
Current Detection Amplifier, Gain, Phase vs. Frequency
40
180
+INC
VCC = 19 V
30
20
Av
90
13 +
−INC ⁽²⁴⁾
12
×20
−
(1)
OUTC
10
(2)
OUT
10
Current Amp1
0
0
φ
(Current Amp2)
−10
12.6 V
12.55 V
−20
−90
−30
−40
−180
100
1k
10k 100k 1M
10M
Frequency f (Hz)
22
(Continued)