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

X  

Preview PDF HTML

L6981 bảng dữ liệu(PDF) 17 Page - STMicroelectronics

tên linh kiện L6981
Giải thích chi tiết về linh kiện  38 V, 1.5 A synchronous step-down converter with low quiescent current
PDF  49 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6981 bảng dữ liệu(HTML) 17 Page - STMicroelectronics

Back Button L6981 Datasheet HTML 13Page - STMicroelectronics L6981 Datasheet HTML 14Page - STMicroelectronics L6981 Datasheet HTML 15Page - STMicroelectronics L6981 Datasheet HTML 16Page - STMicroelectronics L6981 Datasheet HTML 17Page - STMicroelectronics L6981 Datasheet HTML 18Page - STMicroelectronics L6981 Datasheet HTML 19Page - STMicroelectronics L6981 Datasheet HTML 20Page - STMicroelectronics L6981 Datasheet HTML 21Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 49 page
background image
6.5.1
Low consumption mode part number
The overvoltage protection continuously compares the FB pin with 120% nominal output voltage and enables
the low-side MOSFET at the beginning of the switching cycle keeping it active until 1.5 A typ. negative current
limitation is reached, in order to discharge the output capacitor.
The following graph shows the LCM part number behavior during an OVP event.
Figure 18. OVP event low consumption mode part number
Isw(t)
SW(t)
t
VOUT (t)
t
VOVP
VOVP_HYST
VOUT, LCM
ISKIP
t
IVY_SINK
ISKIP_LNM
VIN
VOUT
TON,min LS
Body Diode HS
As soon as the output voltage goes out of the OVP hysteresis (typ. 2%) the L6981 device sets the switching node
on high impedance. It restarts the switching activity accordingly with the main loop regulation of the peak current
mode architecture.
L6981
Overvoltage protection
DS13554 - Rev 1
page 17/49



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


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