công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

L6985F bảng dữ liệu(PDF) 30 Page - STMicroelectronics

tên linh kiện L6985F
Giải thích chi tiết về linh kiện  Internal current limiting
PDF  65 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6985F bảng dữ liệu(HTML) 30 Page - STMicroelectronics

Back Button L6985F Datasheet HTML 26Page - STMicroelectronics L6985F Datasheet HTML 27Page - STMicroelectronics L6985F Datasheet HTML 28Page - STMicroelectronics L6985F Datasheet HTML 29Page - STMicroelectronics L6985F Datasheet HTML 30Page - STMicroelectronics L6985F Datasheet HTML 31Page - STMicroelectronics L6985F Datasheet HTML 32Page - STMicroelectronics L6985F Datasheet HTML 33Page - STMicroelectronics L6985F Datasheet HTML 34Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 30 / 65 page
background image
Functional description
L6985F
30/65
DocID027836 Rev 2
Figure 21. Valley current sense operation in overcurrent condition
Figure 21 shows the switching frequency reduction during the valley current sense
operation in case of an extremely low duty cycle (VIN = 38 V, fSW = 2 MHz short-circuit
condition).
In a worst case scenario (like in Figure 21) of the overcurrent protection the switch current is
limited to:
Equation 15
where IVALLEY_TH is the current threshold of the valley sensing circuitry (see Table 5:
Electrical characteristics on page 8) and TMASK_HS is the masking time of the high-side
switch 100 nsec. typ.).
In most of the overcurrent conditions the conduction time of the high-side switch is higher
than the masking time and so the peak current protection limits the switch current.
Equation 16
IMAX = IPEAK_TH
IMAX
IVALLEYTH
VIN VOUT
–
L
------------------------------ TMASKHS
+
=



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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