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NCP1336: Controller, Quasi-Resonant, Current Mode, with HV Start-Up

Datasheet: Quasi-Resonant Current Mode Controller for High Power Universal Off-Line Supplies
Rev. 4 (933kB)
Product Overview
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The NCP1336 hosts a high-performance circuitry aimed to powering quasi-resonant converters. Capitalizing on a novel valley-lockout system, the controller shifts gears and reduces the switching frequency as the power loading becomes lighter. This results in a stable operation despite switching events always occurring in the drain-source valley. This system works down to the 4th valley and toggles to a variable frequency mode beyond, ensuring an excellent standby power performance.
The controller takes benefit of a high-voltage start-up current source to provide a quick and lossless power-on sequence. To improve the safety in overload situations, the controller includes an Over Power Protection circuit which clamps the delivered power at high-line. Safety-wise, an adjustable timer relies on the feedback voltage to detect a fault. On version B, this fault triggers a triple-hiccup on the VCC pin which naturally reduces the average input power drawn by the converter. On version A, when a fault is detected, the controller is latched-off.
Particularly well suited for adapter applications, the controller features two latch inputs: one dedicated to Over Temperature protection (OTP) which offers an easy means to connect a pull-down temperature sensor like an NTC, and a second one more classical that can be used ot performa an accurate Over voltage Protection.
Finally, a brownout pin whcih stops the circuit operation in presence of a low mains condition is included.
Features   Benefits
     
  • Valley Switching Operation with Valley-Lockout
 
  • Improved efficiency with noise immunity
  • Loss-free Adjustable Over Power Protection
 
  • Limits the peak current according to input line voltage
  • Auto-recovery or Latched Short-Circuit Protection with adjustable timer
 
  • Versatile short circuit protection for improved reliability
  • Dedicated Overtemperature Protection Input
 
  • Allows direct connection to NTC for accurate OTP
  • Brown Out Protection
 
  • Protects against drops in input mains voltage
  • High voltage startup current source
 
  • Provides a quick and lossless power-on sequence
Applications   End Products
  • High Power Ac-Dc converters
 
  • Notebook Adapters
  • Flat TV SMPS
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Case Outlines
Application Diagram
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1336ADR2G Last Shipments
Pb-free
Halide free
NCP1336 SOIC-14 NB 751AN 1 260 Tape and Reel 2500  
NCP1336BDR2G Active
Pb-free
Halide free
NCP1336 SOIC-14 NB 751AN 1 260 Tape and Reel 2500 $0.48
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 5,000
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
fsw Typ (kHz)
Stand-by Mode
UVLO (V)
Short Circuit Protection
Latch
Soft Start
VCC Max (V)
Drive Cap. (mA)
Package Type
NCP1336BDR2G  
 $0.48 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9 - 15
Yes
Yes
Yes
28
500 / 800
SOIC-14 NB
Case Outlines
751AN   
Packages
NCP1336: Controller, Quasi-Resonant, Current Mode, with HV Start-Up
NCP1336: Controller, Quasi-Resonant, Current Mode, with HV Start-Up
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