DataSheetWiki


FA5547 fiches techniques PDF

Fuji - PWM Control Power Supply IC

Numéro de référence FA5547
Description PWM Control Power Supply IC
Fabricant Fuji 
Logo Fuji 





1 Page

No Preview Available !





FA5547 fiche technique
FA5553/5547 Series of PWM Control
Power Supply ICs with Multi-functionality
and Low Standby Power
Masanari Fujii
Hiroshi Maruyama
Kokou Boku
1. Introduction
In recent years, global environmental warming has
come to be addressed as a worldwide problem and ener-
gy savings has become critical for all electric products.
In particular, televisions, audio components, notebook
computers, printers and other such peripheral devices
that are often continuously plugged into an electri-
cal outlet remain in their standby state for a longer
duration of time than their actual time of usage, and
therefore functions for reducing the power consump-
tion during standby have become essential. Requests
for lower standby power consumption in power supply
units have also intensified year after year.
In response to these requests, Fuji Electric has
already developed a series of control ICs for use in
switching mode power supply units to convert commer-
cial AC power (100 V or 240 V) to a DC power supply.
Recently, Fuji Electric has developed the FA5553 / 5547
series of 8-pin current mode PWM (pulse width
modulation) control power supply ICs which feature
enhanced low standby power performance and added
protection functions suitable for various products. An
overview of this new product series is presented below.
2. Product Overview
Fuji Electric has developed a series of AC-DC
power supply ICs for driving externally attached power
MOSFETs fabricated using a 30 V CMOS (comple-
mentary metal-oxide-semiconductor) process, and this
newly developed IC series is listed in Table 1. This IC
series is used as a PWM IC on the primary side in the
conceptual diagram of a switching mode power supply
shown in Fig. 1.
2.1 Characteristics
As indicated in Table 1 each unit type is provided
Fig.1 Conceptual diagram of switching mode power supply
AC power
supply
Primary side Secondary side
+
C1 Half-wave
RVH
PWM IC
LAT VH
FB (NC)
IS VCC
GND OUT
+ MOS
C2 gate
signal
RS
Main
winding
Auxiliary
winding
Secondary side
Output voltage /
current
+
Table 1 Characteristics of PWM IC series for low standby power
Series
Model
Power
Package
supply
configu-
ration
Input Operating
range frequency
Overload
Protection function
Low standby power function
Over-
voltage
Latch by
an external
signal
(overheat)
Brown-
out
Startup
circuit
Min. operating
frequency
during standby
Overload
line com-
pensation
loss
FA5528 FA5528
FA5553
FA5547
FA5553
FA5554
FA5566
FA5567
FA5546
FA5547
SOP/
DIP8
SOP/
DIP8
SOP/
DIP8
Flyback
10 to
26 V
Flyback
10 to
26 V
Flyback
10 to
26 V
60 kHz Timer latch Latch
60 kHz
100 kHz
60 kHz
Auto-restart
Timer latch
Auto-restart
Timer latch
Auto-restart
Timer latch
Latch
Latch
Yes
Yes
Yes
No Yes 1.1 kHz < 70 mW
No Yes 0.35 kHz < 5 mW
Yes Yes 0.5 kHz < 5 mW
: New product
68 Vol. 54 No. 2 FUJI ELECTRIC REVIEW

PagesPages 6
Télécharger [ FA5547 ]


Fiche technique recommandé

No Description détaillée Fabricant
FA5540 Switching Power Supply Control IC Application Note Fuji
Fuji
FA5541 Switching Power Supply Control IC Application Note Fuji
Fuji
FA5542 Switching Power Supply Control IC Application Note Fuji
Fuji
FA5547 PWM Control Power Supply IC Fuji
Fuji

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche