Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

NCP1253 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. NCP1253
Description  Current-Mode PWM Current-Mode PWM Power Supplies
Download  15 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo 

NCP1253 Datasheet(HTML) 3 Page - ON Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 3 / 15 page
background image
NCP1253
http://onsemi.com
3
S
R
Q
Q
65 kHz
100 kHz
clock
vdd
Frequency
modulation
Vcc
Drv
Vcc logic
management
and fault timer
vdd
power
on reset
Rramp
LEB
VDD
RFB
/ 4.2
IpFlag
4 ms
SS
IpFlag
GND
CS
FB
Frequency
foldback
Vskip
The soft−start is activated during:
− the startup sequence
− the auto−recovery burst mode
Vlimit
Vfold
Clamp
20us time
constant
VOVP
VFB < 1.05 V ? setpoint = 250 mV
250 mV
peak current
freeze
UVLO
BO
Power on
reset
S
R
Q
Q
Rlim
Figure 2. Internal Circuit Architecture


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15 


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