Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

NCP1236 Datasheet(PDF) 1 Page - ON Semiconductor

Part # NCP1236
Description  Fixed Frequency Current Mode Controller
Download  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1236 Datasheet(HTML) 1 Page - ON Semiconductor

  NCP1236 Datasheet HTML 1Page - ON Semiconductor NCP1236 Datasheet HTML 2Page - ON Semiconductor NCP1236 Datasheet HTML 3Page - ON Semiconductor NCP1236 Datasheet HTML 4Page - ON Semiconductor NCP1236 Datasheet HTML 5Page - ON Semiconductor NCP1236 Datasheet HTML 6Page - ON Semiconductor NCP1236 Datasheet HTML 7Page - ON Semiconductor NCP1236 Datasheet HTML 8Page - ON Semiconductor NCP1236 Datasheet HTML 9Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 34 page
background image
© Semiconductor Components Industries, LLC, 2016
January, 2016 − Rev. 5
1
Publication Order Number:
NCP1236/D
NCP1236
Fixed Frequency Current
Mode Controller for Flyback
Converters
The NCP1236 is a new fixed−frequency current−mode controller
featuring Dynamic Self−Supply (DSS). This device is pin−to−pin
compatible with the previous NCP12xx families.
The DSS function greatly simplifies the design of the auxiliary
supply and the VCC capacitor by activating the internal startup current
source to supply the controller during transients.
Due to frequency foldback, the controller exhibits excellent
efficiency in light load condition while still achieving very low
standby power consumption. Internal frequency jittering, ramp
compensation, and a versatile latch input make this controller an
excellent candidate for converters where components cost is the key
constraints.
In addition, the controller includes a new high voltage circuitry that
combines a start−up current source and a brown−out detector able to
sense the input voltage either from the rectified ac line or the dc
filtered bulk voltage. The high voltage sensing circuitry is used for the
overpower protection purposes as well. Overpower protection,
overload protection, and next protective features increases safety level
of the final application.
Finally, due to a careful design, the precision of critical parameters
is well controlled over the entire temperature range (−40
°C to
+125
°C).
Features
Fixed−Frequency Current−Mode Operation with Built−In Ramp
Compensation
65 kHz or 100 kHz Oscillator Frequency
Frequency Foldback then Skip Mode for Maximized Performance in
Light Load and Standby Conditions
Timer−Based Overload Protection with Latched (option A) or
Auto−Recovery (option B) Operation, Shortened Overload Timer for
Increased Safety (options C and D), (see all options on page 2)
High−voltage Current Source with Brown−Out
detection and Dynamic Self−Supply, Simplifying the
Design of the VCC Capacitor
Frequency Modulation for Softened EMI Signature,
including during Frequency Foldback mode
Adjustable Overpower Compensation
Latch−off Input for Severe Fault Conditions, Allowing
Direct Connection of an NTC for Overtemperature
Protection (OTP)
VCC Operation up to 28 V, with Overvoltage Detection
$500 mA Peak Source / Sink Current Drive Capability
4.0 ms Soft−Start
Internal Thermal Shutdown
Pin−to−Pin Compatible with the Existing NCP12xx
Series
These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
Typical Applications
AC−DC Adapters for Notebooks, LCD, and Printers
Offline Battery Chargers
Consumer Electronic Power Supplies
Auxiliary/Housekeeping Power Supplies
SOIC−7
CASE 751U
MARKING
DIAGRAM
www.onsemi.com
36Xff
ALYW
G
1
8
36Xff = Specific Device Code
X = A, B, C or D
ff = 65 or 100
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
See detailed ordering and shipping information in the package
dimensions section on page 33 of this data sheet.
ORDERING INFORMATION
18
5
3
4
(Top View)
Latch
CS
HV
PIN CONNECTIONS
6
2
FB
GND
DRV
VCC


Similar Part No. - NCP1236

ManufacturerPart #DatasheetDescription
logo
ON Semiconductor
NCP1236 ONSEMI-NCP1236 Datasheet
295Kb / 34P
   Fixed Frequency Current Mode Controller for Flyback Converters
January, 2012 ??Rev. 2
NCP1236 ONSEMI-NCP1236 Datasheet
302Kb / 34P
   Fixed Frequency Current Mode Controller for Flyback Converters
April, 2013 ??Rev. 3
NCP1236AD100R2G ONSEMI-NCP1236AD100R2G Datasheet
302Kb / 34P
   Fixed Frequency Current Mode Controller for Flyback Converters
April, 2013 ??Rev. 3
NCP1236AD65R2G ONSEMI-NCP1236AD65R2G Datasheet
302Kb / 34P
   Fixed Frequency Current Mode Controller for Flyback Converters
April, 2013 ??Rev. 3
NCP1236BD100R2G ONSEMI-NCP1236BD100R2G Datasheet
302Kb / 34P
   Fixed Frequency Current Mode Controller for Flyback Converters
April, 2013 ??Rev. 3
More results

Similar Description - NCP1236

ManufacturerPart #DatasheetDescription
logo
ON Semiconductor
NCP1240 ONSEMI-NCP1240 Datasheet
1Mb / 45P
   Fixed Frequency Current Mode Controller
July, 2015 ??Rev. 1
NCP1246 ONSEMI-NCP1246_15 Datasheet
1Mb / 39P
   Fixed Frequency Current Mode Controller
March, 2015 ??Rev. 6
SCY99194 ONSEMI-SCY99194 Datasheet
1Mb / 40P
   Fixed Frequency Current Mode Controller
December, 2014 ??Rev. 0
NCP1235 ONSEMI-NCP1235 Datasheet
243Kb / 34P
   Fixed Frequency Current Mode Controller
January, 2015 ??Rev. P0
NCP1244 ONSEMI-NCP1244 Datasheet
1Mb / 40P
   Fixed Frequency Current Mode Controller
July, 2014 ??Rev. 1
NCP1248 ONSEMI-NCP1248 Datasheet
1Mb / 36P
   Fixed Frequency Current Mode Controller
December, 2014 ??Rev. 0
logo
Estek Electronics Co. L...
KA3842 ESTEK-KA3842 Datasheet
321Kb / 7P
   fixed frequency current mode PWM controller
logo
IK Semicon Co., Ltd
IL3842 IKSEMICON-IL3842 Datasheet
124Kb / 5P
   Fixed Frequency Current Mode PWM Controller
logo
Integral Corp.
IL3842 INTEGRAL-IL3842 Datasheet
204Kb / 5P
   Fixed Frequency Current Mode PWM Controller
logo
IK Semicon Co., Ltd
IL3843 IKSEMICON-IL3843_11 Datasheet
141Kb / 5P
   Fixed Frequency Current Mode PWM Controller
More results


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


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com