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參數資料
| 型號： | FA13844N |
| 廠商： | FUJI ELECTRIC CO LTD |
| 元件分類： | 穩壓器 |
| 英文描述： | CMOS IC(For Switching Power Supply Control) |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數： | 2/15頁 |
| 文件大小： | 151K |
| 代理商： | FA13844N |
FA13842, 13843, 13844, 13845
2
I
Absolute maximum ratings
(Ta=25C)
I
Block diagram
á
FA13842, 13843
á
FA13844, 13845
VCC
ENB
2.5V
ENB
5V REF
UVLO
OSC
VCC
30V
RT/CT
FB
COMP
ISNS
GND
OUT
VREF
ER AMP
2R
1R
1V
5V ControlIed block
S
FF
R
Q
QB
CLK
QB
UVLO
7
8
6
5
4
2
1
3
VCC
ENB
ENB
2.5V
OUTPUT
5V REF
UVLO
OSC
VCC
30V
RT/CT
FB
COMP
ISNS
GND
OUT
VREF
ER AMP
2R
1R
1V
5V Controlled block
S
FFQ
QB
R
UVLO
7
8
6
5
4
2
1
3
I
tem
Supply voltage
Symbol
V
CC
Test condition
Low impedance source
Zener clamp (Icc<10mA)
Rating
28
Self limiting
10
400
1
–0.3 to 5.3
10
800
400
125
250
150
–25 to 85
–40 to 150
Unit
V
V
mA
mA
A
V
mA
mW
Zener current
Output peak current
I
Z
I
O
Source current
Sink current
FB, ISNS
FB/ISNS terminal input voltage
Error amplifier sink current
Total power dissipation
V
IN
I
SINK
P
d
at Ta < 50C DIP
SOP
Thermal resistance
R
θ
j-a
Junction-air DIP
C/W
SOP
Junction temperature
Ambient temperature
Storage temperature
T
j
T
a
T
stg
C
C
C
Pin No. Symbol Function
1
COMP
Description
Error amplifier output, available
for loop compensation circuit
Inverting input of the error
amplifier
Input voltage proportional to
inductor current
Setting oscillation frequency
and maximum duty-cycle with
resistor R
T
and capacitor C
T
Ground
Output for driving a power
MOSFET
Power supply
Compensating
2
FB
Feedback
3
ISNS
Current sensing
4
RT/CT
Oscillator control
5
6
GND
OUT
Ground
Output
7
8
VCC
VREF
Power supply
Reference voltage Reference voltage and
current source charging
capacitor C
T
through resistor
R
T
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| FA13844P | CMOS IC(For Switching Power Supply Control) |
| FA13845N | CMOS IC(For Switching Power Supply Control) |
| FA13845P | CMOS IC(For Switching Power Supply Control) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FA13844N-TE1 | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:CURRENT MODE PWM CONTROLLER |
| FA13844P | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:CMOS IC(For Switching Power Supply Control) |
| FA13844P-D1 | 制造商:Fuji Electric 功能描述: |
| FA13845 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:電源電路，類似UA3843 |
| FA13845N | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:CMOS IC(For Switching Power Supply Control) |
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