MB39A119 Datasheet, PDF (14/53 Pages) Fujitsu Component Limited. – DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery

MB39A119
(Continued)
Current Detection Amplifier Gain, Phase vs. Frequency
50.0
40.0
30.0
20.0
10.0
0.0
−10.0
−20.0
−30.0
−40.0
−50.0
1k
225
Ta = +25 °C ₁₈₀
135
Av
90
45
0
φ
−45
−90
−135
−180
−225
10k
100k
1M
10M
Frequency f (Hz)
Current Detection Amplifier Gain, Phase vs. Frequency
50.0
40.0
30.0
20.0
10.0
0.0
−10.0
−20.0
−30.0
−40.0
−50.0
1k
225
Ta = +25 °C ₁₈₀
135
Av
90
45
0
−45
φ
−90
−135
−180
−225
10k
100k
1M
10M
Frequency f (Hz)
Power Dissipation vs. Operating Ambient Temperature
5000
4500
4400
4000
QFN-24 (with thermal via)
3500
3000
2500
2000
1900
1500
QFN-24
(without thermal via)
1000
500
0
−50 −25 0
25 50 75 100 125
Operating ambient temperature Ta ( °C)
14
+INC1
3
−INC1
2
VCC = 19 V
+
× 25
−
−INE1
8
OUT
Current Amp1
19 V
18.95 V
12.6 V
+INC2
10
−INC2
11
VCC = 19 V
+
× 24.5
−
OUTC2
9
OUT
Current Amp2
12.55 V