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參數(shù)資料
| 型號(hào)： | FA7630CP |
| 廠商： | FUJI ELECTRIC CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Bipolar IC For Switching Power Supply Control |
| 中文描述： | 0.5 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP20 |
| 封裝： | DIP-20 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 61K |
| 代理商： | FA7630CP |
FA7630CP(E)
1
I
Block diagram
Pin
No.
Pin
symbol
CT
RT
ON/OFF2
Output ON/OFF control 2
IN2+
Non-inverting input to error
amplifier
IN2
–
Inverting input to error amplifier
FB2
Error amplifier output
DT2
Dead time adjustment
OCL2
Overcurrent limiting circuit 2
GND
Ground
OUT2
CH.2 output
OUT1
CH.1 output
VCC
Power supply
OCL1
Overcurrent limiting circuit
DT1
Dead time adjustment
FB1
Error amplifier output
IN1+
Non-inverting input to error
amplifier
ON/OFF1
Output ON/OFF control 1
SYNC IN
Synchronizing signal input
CP
Timer and latch circuit
REF
Reference voltage output
Description
1
Oscillator timing capacitor
2
Oscillator timing resistor
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
I
Dimensions, mm
á
SSOP-20
1
7.2
10
11
20
5
0.6
0
0.65
7
±
0
0
±
0
0.3
0
+
2
á
DIP-20
1
20
11
10
24.4
6
7.62
3
5
1.52
0.77
2
0
0~15
0~15
0.46
±
0.1
2.54
±
0.25
0.25
+0.1
Bipolar IC
For Switching Power Supply Control
I
Description
The FA7630CP(E) is dual channel PWM-type switching power
supply control IC.
This IC can drive Pch-MOSFET directly and is optimum for
large power DC-DC converter.
This IC has all the necessary protection functions for a power
MOSFET. It is optimum for a portable equipment power
supply which uses low-voltage input to output comparably
large power.
I
Features
Dual channel PWM-type switching power supply control
±
2.6% (V
REF
) and
±
3% (V
B
) reference voltage
Low voltage operation (Vcc: 5 to 20V)
Drive circuit for connecting a Pch-MOSFET
Overload cutoff circuit with timer latch circuit
Soft start circuit
Undervoltage lockout function (UVLO)
Pulse-by-pulse overcurrent limiting function
Output ON/OFF control function for each channel
Master-slave synchronized operation without external
components
Maximum operating frequency is 500kHz
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