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参数资料
| 型号： | FA7703V |
| 厂商： | FUJI ELECTRIC CO LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 0.4 A DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 1.10 MM, TSSOP-16 |
| 文件页数： | 17/21页 |
| 文件大小： | 242K |
| 代理商： | FA7703V |
5
Quality is our message
FA7703/04
3.Block diagram
4. Selection Gide
Ch.1(OUT1)
Buck, Boost, Fly-back
FA7703
Ch.2(OUT2)
Buck, Inverting (Pch driven)
Ch.1(OUT1)
Buck, Boost, Fly-back
FA7704
Ch.2(OUT2)
Boost, Fly-back (Nch driven)
5. Pin assignment
Pin No
Pin
symbol
Description
1
RT
Oscillator timing resistor
2
CS
Soft start, Timer latched short circuit protection, ON/OFF control
3
DT2
Ch.2
Dead Time Adjustment
4
IN2+
Ch.2 non-inverting input to error amplifier
5
IN2-
Ch.2 inverting input to error amplifier
6
FB2
Ch.2 output o error amplifier
7
GND
Ground
8
OUT2
Ch.2 output
9
VCC
Power supply
10
OUT1
Ch.1 output
11
SEL
Selection of type of driven MOSFET (OUT1)
12
FB1
Ch.1 output o error amplifier
13
IN1-
Ch.1 inverting input to error amplifier
14
REF
Reference voltage
15
DT1
Ch.1
Dead Time Adjustment
16
REG
Regulated voltage output
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
REG
DT1
REF
IN1-
FB1
SEL1
OUT1
VCC
RT
CS
DT2
IN2+
IN2-
FB2
GND
OUT2
+
-
+
-
+
OSC
Power G ood Signal
Reference
voltage
+
-
UVLO
BIAS
1V
Er.Am p1
Er.Am p2
PW M.Com p1
PW M.Com p2
1.5V
2.0V
1.3V
S.C.DET
S.C.P
ON/O FF
BIAS
2.2V
ICS
FA7704
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