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MB3821 データシートの表示(PDF) - Fujitsu

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MB3821 Datasheet PDF : 24 Pages
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MB3821
s BLOCK DIAGRAM
1 µΑ 1 µΑ
13 VB
FB1 6
IN1 5
CS1 4
Error Amp.
+
+
1.26 V
< CH1 >
PWM Comp.1
+
PWM Comp.2
(40 mV)
+
FB2 19
IN2 20
CS2 21
Error Amp.
+
+
1.26 V
< CH2 >
SCP Comp.
+
1 µΑ
CSCP 22
2.1 V
bias
SR
Latch
PWM Comp.1
+
PWM Comp.2
(40 mV)
+
UVLO
OSC
Drive
Drive
10 CB1
23 VCC
8 OUT11
9 VS1
11 OUT21
15 CB2
Drive
17 OUT12
16 VS2
Drive
14 OUT22
12 GND (0)
1.9 V
1.3 V
bias
Ref Power
(2.5 V) ON/OFF
18 CTL
7
1
2
SEL CT RT
24
VREF
3
GND
4

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