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NCP1340: Quasi-Resonant Controller, High-Voltage, Featuring Valley Lock-Out Switching

Datasheet: High-Voltage, Quasi-Resonant, Controller featuring Valley Lock-Out Switching
Rev. 13 (1154kB)
Product Overview
»View Material Composition
» Product Change Notification
The NCP1340 is a highly integrated quasi−resonant flyback controller suitable for designing high−performance off−line power converters. With an integrated active X2 capacitor discharge feature, the NCP1340 can enable no−load power consumption below 30 mW. The quasi−resonant current−mode flyback stage features a proprietary valley−lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to a frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1340 enters quiet−skip mode to manage the power delivery. To help ensure converter ruggedness, the NCP1340 implements several key protective features such as internal brownout detection, a non−dissipative Over Power Protection (OPP) for constant maximum output power regardless of input voltage, a latched over voltage and NTC−ready over temperature protection through a dedicated pin, and line removal detection to safely discharge the X2 capacitors when the line is removed.
Features   Benefits
     
  • QR Frequency Jittering
 
  • Reduces EMI Signature
  • New Quiet-Skip Technology
 
  • Ensures Operation Outside Audible Range
  • Integrated HV Startup with Brownout Protection
 
  • Provides an efficient power-on source and protects agaisnts drops in input mains voltage
  • Valley Switching Operation with Valley Lockout
 
  • Maximizing the efficiency over the entire power range
  • Integrated X2 Capacitor Discharge Capability
 
  • Eliminates the need for a X2 resistors
  • NTC Compatible Fault Pin
 
  • Extra protection against high temperature or other fault conditions
  • High Drive Capability: -500 mA / +800 mA
 
  • Enables faster switching of primary-side MOSFET
  • Latch input for OVP and OTP implementations
 
  • Simple implementation of required protection functions
Applications   End Products
  • Medium or High Power AC-DC Adapters
  • Ultra High Density AC-DC Adapters
 
  • Notebook Adpaters
  • Flat TV SMPS
  • Computer Power Supplies
  • Phone and Tablet Adapters
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1340GEVB Active
Pb-free
High-Voltage, Quasi-Resonant Controller Evaluation Board
NCP1340UHDGEVB Active
Pb-free
High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1340A3D1R2G Active
Pb-free
Halide free
NCP1340 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.4133
NCP1340A6DR2G Active
Pb-free
Halide free
NCP1340 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.4
NCP1340B10DR2G Active
Pb-free
Halide free
NCP1340 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.4
NCP1340B1DR2G Active
Pb-free
Halide free
NCP1340 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.4
NCP1340B3D1R2G Active
Pb-free
Halide free
NCP1340 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.4133
NCP1340B4D1R2G Active
Pb-free
Halide free
NCP1340 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.4133
NCP1340B5D1R2G Active
Pb-free
Halide free
NCP1340 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.4133
NCP1340B6DR2G Active
Pb-free
Halide free
NCP1340 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.4
NCP1340B7D1R2G Active
Pb-free
Halide free
NCP1340 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.4133
NCP1340B8D1R2G Active
Pb-free
Halide free
NCP1340 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.4133
Market Leadtime (weeks) : 8 to 12
ON Semiconductor   (2020-09-02 00:00) : 7,499
Market Leadtime (weeks) : 13 to 16
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 25,000
Market Leadtime (weeks) : 8 to 12
ON Semiconductor   (2020-09-02 00:00) : 90,000
Market Leadtime (weeks) : 13 to 16
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 13 to 16
ON Semiconductor   (2020-09-02 00:00) : 10,000
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 47,500
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 15,000

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
NCP1340A3D1R2G  
 $0.4133 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
No
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1340A6DR2G  
 $0.4 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-8
NCP1340B10DR2G  
 $0.4 
Pb
H
 Active   
SOIC-8
NCP1340B1DR2G  
 $0.4 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-8
NCP1340B3D1R2G  
 $0.4133 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1340B4D1R2G  
 $0.4133 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1340B5D1R2G  
 $0.4133 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1340B6DR2G  
 $0.4 
Pb
H
 Active   
Flyback
Current Mode
Fixed
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-8
NCP1340B7D1R2G  
 $0.4133 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1340B8D1R2G  
 $0.4133 
Pb
H
 Active   
SOIC-9 NB
Case Outlines
751BP    751-07   
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High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board - NCP1340UHDGEVB
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