Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

NCP1239 Datasheet(PDF) 23 Page - ON Semiconductor

Part No. NCP1239
Description  Low−Standby High Performance PWM Controller
Download  38 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo 

NCP1239 Datasheet(HTML) 23 Page - ON Semiconductor

Zoom Inzoom in Zoom Outzoom out
 23 / 38 page
background image
NCP1239
http://onsemi.com
23
Figure 41.
Drv
100ms
< 100ms
Bunch length given by timer
Bunch length given by VccOFF
Cpin6 = 390 nF
When VCC drops faster than the timer, it prematurely interrupts the pulses flow.
The 100 ms delay could be shortened or lengthened by changing the Pin 6 capacitor.
VCCOFF
VCC
VCCON
Figure 42.
Drv
100ms
100ms
t1
t2
t3
t’1
t’2
Latch−off phase level
Logic reset level
The burst period is ensured by the VCC capacitor charge/discharge cycle
The 100 ms delay could be shortened or lengthened by changing the Pin 6 capacitor.
Cpin6=390 nF
VCCOFF
VCC
VCCON


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 


Datasheet Download




Link URL




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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   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