Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

FAN7930B Datasheet(PDF) 17 Page - Fairchild Semiconductor

Part # FAN7930B
Description  Critical Conduction Mode PFC Controller
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN7930B Datasheet(HTML) 17 Page - Fairchild Semiconductor

Back Button FAN7930B Datasheet HTML 13Page - Fairchild Semiconductor FAN7930B Datasheet HTML 14Page - Fairchild Semiconductor FAN7930B Datasheet HTML 15Page - Fairchild Semiconductor FAN7930B Datasheet HTML 16Page - Fairchild Semiconductor FAN7930B Datasheet HTML 17Page - Fairchild Semiconductor FAN7930B Datasheet HTML 18Page - Fairchild Semiconductor FAN7930B Datasheet HTML 19Page - Fairchild Semiconductor FAN7930B Datasheet HTML 20Page - Fairchild Semiconductor FAN7930B Datasheet HTML 21Page - Fairchild Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 22 page
background image
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN7930B • Rev. 1.0.2
17
PCB Layout Guide
PFC block normally handles high switching current and
the voltage low energy signal path can be affected by
the high energy path. Cautious PCB layout is mandatory
for stable operation.
1.
The gate drive path should be as short as possible.
The closed-loop that starts from the gate driver,
MOSFET gate, and MOSFET source to ground of
PFC controller is recommended as close as
possible. This is also crossing point between power
ground and signal ground. Power ground path from
the bridge diode to the output bulk capacitor should
be short and wide. The sharing position between
power ground and signal ground should be only at
one position to avoid ground loop noise. Signal path
of PFC controller should be short and wide for
external components to contact.
2.
PFC output voltage sensing resistor is normally
high to reduce current consumption. This path can
be affected by external noise. To reduce noise
possibility at the INV pin, a shorter path for output
sensing is recommended. If a shorter path is not
possible, place some dividing resistors between
PFC output and the INV pin — closer to the INV pin
is better. Relative high voltage close to the INV pin
can be helpful.
3.
ZCD path is recommended close to auxiliary
winding from boost inductor and to the ZCD pin. If
that is difficult, place a small capacitor (below 50pF)
to reduce noise.
4.
Switching current sense path should not share with
another path to avoid interference. Some additional
components may be needed to reduce the noise
level applied to the CS pin.
5.
A stabilizing capacitor for VCC is recommended as
close as possible to the VCC and ground pins. If it is
difficult, place the SMD capacitor as close to the
corresponding pins as possible.
Figure 43.
Recommended PCB Layout


Similar Part No. - FAN7930B

ManufacturerPart #DatasheetDescription
logo
ON Semiconductor
FAN7930B ONSEMI-FAN7930B Datasheet
1Mb / 22P
   Critical Conduction Mode PFC Controller
September-2017, Rev. 2
FAN7930BMX-G ONSEMI-FAN7930BMX-G Datasheet
1Mb / 22P
   Critical Conduction Mode PFC Controller
September-2017, Rev. 2
More results

Similar Description - FAN7930B

ManufacturerPart #DatasheetDescription
logo
Fairchild Semiconductor
AN-6961 FAIRCHILD-AN-6961 Datasheet
434Kb / 8P
   Critical Conduction Mode PFC Controller
FAN7930C FAIRCHILD-FAN7930C Datasheet
916Kb / 22P
   Critical Conduction Mode PFC Controller
FAN7529 FAIRCHILD-FAN7529 Datasheet
1Mb / 20P
   Critical Conduction Mode PFC Controller
FAN7529 FAIRCHILD-FAN7529_07 Datasheet
1Mb / 20P
   Critical Conduction Mode PFC Controller
FAN7530 FAIRCHILD-FAN7530_07 Datasheet
1Mb / 20P
   Critical Conduction Mode PFC Controller
logo
ON Semiconductor
FAN7930B ONSEMI-FAN7930B Datasheet
1Mb / 22P
   Critical Conduction Mode PFC Controller
September-2017, Rev. 2
logo
Alpha & Omega Semicondu...
AOZ7111 AOSMD-AOZ7111 Datasheet
912Kb / 15P
   Critical Conduction Mode PFC Controller
logo
Fairchild Semiconductor
FAN7530 FAIRCHILD-FAN7530 Datasheet
2Mb / 20P
   Critical Conduction Mode PFC Controller
logo
ON Semiconductor
FAN7930C ONSEMI-FAN7930C Datasheet
982Kb / 22P
   Critical Conduction Mode PFC Controller
December-2017, Rev. 3
logo
Fairchild Semiconductor
FAN7930MX FAIRCHILD-FAN7930MX Datasheet
1Mb / 22P
   FAN7930 Critical Conduction Mode PFC Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com