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參數資料
| 型號： | FA3621 |
| 廠商： | FUJI ELECTRIC HOLDINGS CO., LTD. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | For Switching Power Supply Control |
| 中文描述： | 對于開關電源控制 |
| 文件頁數： | 4/8頁 |
| 文件大小： | 67K |
| 代理商： | FA3621 |
FA3621F
4
Oscillator section
Item
Symbol
f
OSC
f
dV
f
dT
Test condition
R
T
=18k
,
C
T
=100pF
V
CC
=4.5 to 18V
T
a
=–20 to +25
°
C
T
a
=+25 to +85
°
C
Min.
Typ.
Max.
Unit
Oscillation frequency
414
460
±
1
±
1.5
±
1.5
506
±
3
kHz
Frequency variation due to supply voltage change
%
Frequency variation due to temperature change
%
Error amplifier section
Item
Symbol
V
IOF
V
ICOM
A
VOL
f
T
I
FBL
I
FBH
Test condition
Min.
Typ.
Max.
Unit
Input offset voltage
10
mV
Input common mode voltage range
0.2
1.7
V
Open-loop gain
70
75
dB
Unity-gain bandwidth
1.2
MHz
Output sink current
V
FB
=
1.0V
V
FB
=
0V
1.5
2.8
mA
Output source current
–0.25
–0.15
mA
PWM control section
Item
Symbol
D
max
Test condition
Min.
Typ.
Max.
Unit
Maximum duty cycle
100
%
Soft-start circuit section 1
(CS1, CS2, CS3/4)
Item
Symbol
V
CSO
V
CS100
I
CS
Test condition
Min.
Typ.
Max.
Unit
Input threshold voltage
Duty cycle=0%
0.78
V
Duty cycle=100%
1.38
V
μ
A
Charge current
–7.5
–5.1
–2.5
Soft-start circuit section 2
(CS5, CS6)
Item
Symbol
V
CSO
V
CS100
I
CS
Test condition
Min.
Typ.
Max.
Unit
Input threshold voltage
Duty cycle=0%
0.79
V
Duty cycle=100%
1.40
V
μ
A
Charge current
0
Regulated voltage section
Item
Symbol
V
REG
Test condition
Min.
Typ.
Max.
Unit
Output voltage
2.40
2.67
2.95
V
I
Electrical characteristics
(Ta=25
°
C, Vcc
1
=Vcc
2
=6V, C
T
=100pF, R
T
=18k
)
Reference voltage section
Item
Symbol
V
REF
V
RLIN
V
RTa
Test condition
Min.
Typ.
Max.
Unit
Output voltage
0.985
1.00
1.015
V
Line regulation
V
CC
=4.5 to 18V
T
a
=–20 to +85
°
C
3
10
mV
Output voltage variation due to temperature change
±
0.5
%
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| FA3621F | For Switching Power Supply Control |
| FA3629AV | For Switching Power Supply Control |
| FA3630V | CAP CER 4.7UF 4V X5R 0603 |
| FA3635P | CAP CER 4.7UF 6.3V X5R 0603 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FA3621F | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:For Switching Power Supply Control |
| FA3629AV | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:For Switching Power Supply Control |
| FA3630V | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:For Switching Power Supply Control |
| FA3635P | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:For Switching Power Supply Control |
| FA3641 | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:PWM control IC with light load power saving function For Switching Power Supply Control |
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