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Número de pieza | FA5541 | |
Descripción | Switching Power Supply Control IC Application Note | |
Fabricantes | Fuji | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FA5541 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! FA5540/5541/5542
Fuji Switching Power Supply Control IC
FA5540/5541/5542
Application Note
Rev.0 July-2007
July 2007
Fuji Electric Device Technology Co., Ltd.
1
http://store.iiic.cc/
Fuji Electric Device Technology
1 page FA5540/5541/5542
4. Block diagram
FA5540
ZCD
(1)
Valley
detection
Time out
(6µs)
Reset Max. fsw
Blanking 60kHz
1 shot
(380ns)
CLR
Start up
management
Logic
Start up
Current
12.4V/10.2V
VH
(8)
VCC
(6)
5V
Disable
0.44V
Current
IS
(3)
comparator
SQ
R
FB 1/2
(2)
1V Soft start
(1ms)
Timer
180ms
Overload
1440ms
Reset
3.3V/3.0V
5V Reg.
Check
5V Reg.
Internal
supply
UVLO
10.2V/9V
ZCD
OVP 2
Driver
OUT
(5)
7.2V
VCC
OVP 1
16V
Timer
latch
(40µs)
GND
(4)
FA5541
ZCD
(1)
IS
(3)
FB
(2)
Valley
detection
Time out
(5.6µs)
5V
Reset
50uA
Max. fsw
Blanking 120kHz
1 shot
(380ns)
CLR
Start up
management
Logic
Start up
Current
12.4V/10.2V
VH
(8)
VCC
(6)
5V
Disable
0.34V
Current
comparator
1/2
SQ
R
5V Reg.
Check
5V Reg.
Internal
supply
UVLO
10.2V/9V
ZCD
OVP 2
Driver
OUT
(5)
1V
Overload
Soft start
(1ms)
3.3V
Timer
200ms
1600ms
Reset
7.2V
VCC
OVP 1
28V
Timer
latch
(54µs)
GND
(4)
Rev.0 July-2007
5
http://store.iiic.cc/
Fuji Electric Device Technology
5 Page FA5540/5541/5542
7. Characteristic curve
・ In case nothing is specified : Ta=25℃, VCC=13V(FA5540) / VCC=15V(FA5541/42)
・ “+” shows sink and “–“ shows source in current prescription.
・ Data written here shows the typical characteristics of the IC and does not guarantee the characteristics.
(FA5540)
61.0
Maximum fsw blanking (Fmax)
vs. Vcc pin voltage (Vcc)
FA5540
60.5
60.0
59.5
59.0
9
10 11 12 13 14 15 16
Vcc (V)
62
61
60
59
58
57
56
-50
Maximum fsw blanking (Fmax)
vs. Junction temperature (Tj)
FA5540
0 50 100
Tj (degree)
150
ZCD pin input threshold voltage (Vthzcd1)
vs. Junction temperature (Tj)
FA5540
70
ZCD=decreas ing
65
60
55
50
-50
0 50 100
Tj (degree)
150
ZCD pin input threshold voltage (Vthzcd2)
vs. Junction temperature (Tj)
FA5540
165
ZCD=increas ing
160
155
150
145
-50
0 50 100
Tj (degree)
150
UVLO ON threshold voltage (Vccon)
vs. Junction Temperature (Tj)
FA5540
10.6
UVLO OFF threshold voltage (Vccoff)
vs. Junction Temperature (Tj)
FA5540
9.4
10.4 9.2
10.2 9.0
10.0
9.8
-50
0 50 100
Tj (degree)
150
8.8
8.6
-50
0 50 100
Tj (degree)
150
Rev.0 July-2007
11
http://store.iiic.cc/
Fuji Electric Device Technology
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet FA5541.PDF ] |
Número de pieza | Descripción | Fabricantes |
FA5540 | Switching Power Supply Control IC Application Note | Fuji |
FA5541 | Switching Power Supply Control IC Application Note | Fuji |
FA5542 | Switching Power Supply Control IC Application Note | Fuji |
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