поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

SB380 датащи(PDF) 6 Page - Fairchild Semiconductor

номер детали SB380
подробное описание детали  Power Switch (FPS?? FSL1x7 to Low- Power Supplies
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

SB380 датащи(HTML) 6 Page - Fairchild Semiconductor

Back Button SB380 Datasheet HTML 2Page - Fairchild Semiconductor SB380 Datasheet HTML 3Page - Fairchild Semiconductor SB380 Datasheet HTML 4Page - Fairchild Semiconductor SB380 Datasheet HTML 5Page - Fairchild Semiconductor SB380 Datasheet HTML 6Page - Fairchild Semiconductor SB380 Datasheet HTML 7Page - Fairchild Semiconductor SB380 Datasheet HTML 8Page - Fairchild Semiconductor SB380 Datasheet HTML 9Page - Fairchild Semiconductor SB380 Datasheet HTML 10Page - Fairchild Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 12 page
background image
AN-9719
APPLICATION NOTE
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0 • 11/2/10
6
Once LM is calculated from equation (7) after choosing KRF,
the peak and RMS current of the MOSFET for the minimum
input voltage and nominal load condition are obtained as:
2
(8)
3
2
3
(9)
where:
·
(10)
and
·
·
(11)
I
Δ
2
RF
EDC
I
K
I
Δ
=
S
PK
D
I
Figure 10. MOSFET Current and Ripple Factor (KRF)
(Design Example
) Choosing the ripple factor as 0.88,
·
·
·
79 · 0.48
2 · 15 · 100 10 ·0.88
540
·
15
79 · 0.48
0.4
·
·
79 · 0.48
540 10
· 100 10
0.7
2
0.4
0.35
0.75
3
2
3
3 0.4
0.35
0.48
3
0.31
[STEP-5] Choose the Proper FPS Considering Input
Power and Peak Drain Current
With the resulting maximum peak drain current of the
MOSFET (IDS
PK) from Equation 8, choose the proper FPS
for which the pulse-by-pulse current limit level (ILIM) is
higher than IDS
PK. Since FPS has ±10% tolerance of ILIM,
there should be some margin when choosing the proper FPS
device. The FSL-series lineup with proper power rating is
summarized in Table 3.
Table 3. Lineup of FSL1x7-Series with Power Rating
Product
ILIM at VIN=1.2V
85-265VAC
Open Frame
Min.
Typ.
Max.
FSL127H
0.51A
0.61A
0.71A
16W
FSL137H
0.74A
0.84A
0.94A
19W
(Design Example)
0.75
0.84
.
FSL137H is selected.
[STEP-6] Determine the Minimum Primary Turns
With a given magnetic core, the minimum number of turns
for the transformer primary side to avoid the core saturation
is given by:
·
·
10
(12)
where Ae is the cross-sectional area of the core in mm
2, ILIM
is the pulse-by-pulse current limit level, and BSAT is the
saturation flux density in Tesla.
The pulse-by-pulse current limit level is included in
Equation 12 because the inductor current reaches the pulse-
by-pulse current limit level during the load transient or
overload
condition.
Figure
11
shows
the
typical
characteristics of ferrite core from TDK (PC40). Since the
saturation flux density (BSAT) decreases as temperature
increases, the high-temperature characteristics should be
considered. If there is no reference data, use BSAT =0.3 T.
Figure 11.Typical B-H Characteristics of Ferrite Core
(TDK/PC40)


Аналогичный номер детали - SB380

производительномер деталидатащиподробное описание детали
logo
Nanjing International G...
SB380 DGNJDZ-SB380 Datasheet
248Kb / 2P
   3.0 AMP SCHOTTKY BARRIER RECTIFIERS
logo
Pan Jit International I...
SB380 PANJIT-SB380 Datasheet
54Kb / 2P
   3 AMPERE SCHOTTKY BARRIER RECTIFIERS(VOLTAGE - 20 to 100 Volts CURRENT - 3.0 Amperes)
logo
Galaxy Semi-Conductor H...
SB380 BILIN-SB380 Datasheet
120Kb / 2P
   SCHOTTKY BARRIER RECTIFIER
logo
DAESAN ELECTRONIC CORP.
SB380 DAESAN-SB380 Datasheet
295Kb / 2P
   CURRENT 3.0Amperes VOLTAGE 20 to 100 Volts
logo
Shenzhen Taychipst Elec...
SB380 TAYCHIPST-SB380 Datasheet
1Mb / 2P
   SCHOTTKY BARRIER RECTIFIERS
More results

Аналогичное описание - SB380

производительномер деталидатащиподробное описание детали
logo
Fairchild Semiconductor
KA5S FAIRCHILD-KA5S_03 Datasheet
213Kb / 16P
   Power Switch(FPS)
KA1M0880D FAIRCHILD-KA1M0880D Datasheet
114Kb / 10P
   Power Switch(FPS)
KA1M0265R FAIRCHILD-KA1M0265R Datasheet
89Kb / 10P
   Fairchild Power Switch(FPS)
KA1M0680B FAIRCHILD-KA1M0680B Datasheet
144Kb / 12P
   Fairchild Power Switch(FPS)
KA5X0165RXX FAIRCHILD-KA5X0165RXX Datasheet
102Kb / 12P
   Fairchild Power Switch(FPS)
FS6X1220R FAIRCHILD-FS6X1220R Datasheet
471Kb / 16P
   Fairchild Power Switch (FPS)
FS6S0965RCB FAIRCHILD-FS6S0965RCB Datasheet
572Kb / 10P
   Fairchild Power Switch(FPS)
KA1M0880BF FAIRCHILD-KA1M0880BF Datasheet
95Kb / 10P
   Fairchild Power Switch(FPS)
KA5Q0740RT FAIRCHILD-KA5Q0740RT_04 Datasheet
292Kb / 12P
   Fairchild Power Switch(FPS)
FS8S0765RCB FAIRCHILD-FS8S0765RCB_06 Datasheet
1Mb / 19P
   Fairchild Power Switch (FPS??
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
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