FA5643 Datasheet PDF - Fuji
| Part Number | FA5643 | |
| Description | Switching Power Supply Control IC | |
| Manufacturers | Fuji | |
| Logo |  |
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There is a preview and FA5643 download ( pdf file ) link at the bottom of this page. Total 38 Pages | ||
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FA5640/41/42/43/44/48
Fuji Switching Power Supply Control IC
Green mode Quasi-resonant IC
FA5640/41/42/43/44/48
Application Note
Fuji Electric Co., Ltd.
AN-064E Rev.1.3
April 2012
April 2012
Fuji Electric Co., Ltd.
1 http://www.fujielectric.co.jp/products/semiconductor/
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FA5640/41/42/43/44/48
4. Block diagram
FA5640
ZCD
ZCD
Bottom
detection
Bottom Skip
control
7.5V
30k
Pulse width
detection
Restart Timer
25μs
4.8V
MP1
Off timer
(2μs)
VH
1 shot
(290ns)
set
enb
Input
voltage
detection
mode select
signal
VinH
Startup
management
11V/9V
UVLO
Startup
Current
14V/8V
VCC
4.8V Reg.
Resistance ratio
MP1 on/off
24k
91.3%/100%
84.1%/100%
VinH
- Disable
4.8V
10μA
+
VthFB0
0.45V
0.35V
VinH
IS
FB 1/6
Current
comparator
Reset
Max. Ton
(24μs)
SQ
R2
R1
Standby
0.55V
Standby
detection
Soft start
(1ms)
Overload
3.5/3.3V
VthIS
VinH
0.5V
0.45V
VthIS at Standby
VinH
0.15V
0.10V
Timer
enb
200ms
1600ms
OLP
protection
Reset
Internal
supply
enb
Driver
OUT
Off timer
(4.5μs)
ZCD
OVP
detection
OVP1
Latch
protection
Latch timer
60μs
6V
GND
FA5641
ZCD
ZCD
Bottom
detection
Bottom Skip
control
7.5V
30k
Pulse width
detection
Restart Timer
7.6μs
4.8V
MP1
Off timer
(2μs)
VH
1 shot
(290ns)
set
enb
Min. fsw
(25kHz)
Input
voltage
detection
mode select
signal
VinH
Startup
management
11V/9V
UVLO
Startup
Current
14V/8V
VCC
4.8V Reg.
Resistance ratio
MP1 on/off
91.3%/100%
24k 84.1%/100% VinH
4.8V
10μA
- Disable
+
VthFB0
0.45V
0.35V
VinH
IS
FB 1/6
Current
comparator
Reset
Max. Ton
(24μs)
SQ
R2
R1
Standby
0.55V
Standby
detection
Soft start
(1ms)
Overload
3.5/3.3V
VthIS
VinH
0.5V
0.45V
VthIS at Standby
VinH
0.15V
0.10V
Timer
enb
200ms
1600ms
OLP
protection
Reset
Internal
supply
enb
Driver
OUT
Off timer
(4.5μs)
OVP
detection
OVP1
ZCD
Latch
protection
Latch timer
60μs
6V
GND
Fuji Electric Co., Ltd.
AN-064E Rev.1.3
April 2012
5 http://www.fujielectric.co.jp/products/semiconductor/
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FA5643 electronic component. |
| Information | Total 38 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ FA5643.PDF Datasheet ] | |
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