參數(shù)資料
型號: FA3641N
廠商: FUJI ELECTRIC CO LTD
元件分類: 穩(wěn)壓器
英文描述: PWM control IC with light load power saving function 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(shù): 2/21頁
文件大小: 406K
代理商: FA3641N
FA3641P(N), FA3647P(N)
59
I
Absolute maximum ratings
(Ta=25
C)
I
tem
Supply voltage
Symbol
V
CC
1
V
CC
2
I
OL
I
OH
V
FB
I
REF
V
IS
I
CS
P
d
Test condition
Low impedance source
(Icc >15mA)
Internal ZD clamp (Icc < 15mA)
Sink current
Source current
Rating
30
Self limiting
+1.0
0.5
0.3 to 5.0
10
0.3 to 5.0
2.0
800
*
1
400
*
2
30 to +85
125
40 to +150
Unit
V
V
A
A
V
mA
V
mA
mW
Output peak current
FB pin input voltage
REF pin output current
IS pin input voltage
CS pin input current
Total power dissipation
at Ta =25
C
DIP
SOP
Operating temperature
Junction temperature
Storage temperature
Topr
T
j
T
stg
C
C
C
I
Block diagram
FA3641
FA3647
Note:
*
1
Derating factor Ta > 25
C: 8.0mW/
C
*
2
Derating factor Ta > 25
C: 4.0mW/
C
Maximum power dissipation curve
30
25
85
125
0
Ambient temperature Ta [
C]
M
d
400mW (SOP)
800mW (DIP)
Pin No. Symbol Function
Description
1
RT
Oscillator timing
resistor
Setting oscillation frequency
2
FB
Feedback
Input to PWM comparator
3
IS (+)/
IS (
)
Overcurrent
detection
Input to overcurrent limiting
function
4
GND
Ground
Ground
5
OUT
Output
Output for direct driving a
power MOSFET
6
VCC
Power supply
Power supply for IC
7
REF
Reference voltage
Reference voltage output
(5V)
8
CS
Soft-start and
ON/OFF control
Soft-start, ON/OFF and latch-
mode shutdown operations
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