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

X  

Preview PDF HTML

HVLED815PF bảng dữ liệu(PDF) 18 Page - STMicroelectronics

tên linh kiện HVLED815PF
Giải thích chi tiết về linh kiện  Offline LED driver with primary-sensing and high power factor up to 15 W
PDF  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HVLED815PF bảng dữ liệu(HTML) 18 Page - STMicroelectronics

Back Button HVLED815PF Datasheet HTML 14Page - STMicroelectronics HVLED815PF Datasheet HTML 15Page - STMicroelectronics HVLED815PF Datasheet HTML 16Page - STMicroelectronics HVLED815PF Datasheet HTML 17Page - STMicroelectronics HVLED815PF Datasheet HTML 18Page - STMicroelectronics HVLED815PF Datasheet HTML 19Page - STMicroelectronics HVLED815PF Datasheet HTML 20Page - STMicroelectronics HVLED815PF Datasheet HTML 21Page - STMicroelectronics HVLED815PF Datasheet HTML 22Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 36 page
background image
Device description
HVLED815PF
18/36
Doc ID 023409 Rev 4
Figure 13.
Timing diagram: normal power-up and power-down sequences
4.4
Secondary side demagnetization detection and triggering
block
The demagnetization detection (DMG) and Triggering blocks switch on the power MOSFET
if a negative-going edge falling below 50 mV is applied to the DMG pin. To do so, the
triggering block must be previously armed by a positive-going edge exceeding 100 mV.
This feature is used to detect transformer demagnetization for QR operation, where the
signal for the DMG input is obtained from the transformer's auxiliary winding used also to
supply the IC.
Figure 14.
DMG block, triggering block
AM13563v1
VCC
DRAIN
VccON
Vccrestart
t
t
VIN
VStart
5.5 mA
t
t
Power-on
Power-off
Normal operation
CV mode
CC mode
Normal operation
I
CHARGE
AM13564v1
DMG
60mV
110mV
BLANKING
TIME
TURN-ON
LOGIC
STARTER
S
R
Q
LEB
Rf b
Aux
Rdmg
DMG
CLAMP
To Driv er
From CC/CV Block
From OCP



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


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