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NCP1075A: Enhanced Off line Switcher for Robust and Highly Efficient Power Supplies

Datasheet: Enhanced Off-line Switcher for Robust and Highly Efficient Power Supplies
Rev. 3 (439kB)
Product Overview
»View Material Composition
» Product Change Notification
The NCP1075A & NCP1075B products integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a two different pin out of the very common PDIP 7 package, it offers a high level of integration, including soft start, frequency jittering, short circuit protection, skip cycle, a maximum peak current set point, ramp compensation, and a dynamic self supply (DSS, eliminating the need for an auxiliary winding).
Unlike other monolithic solutions, the NCP1075A & NCP1075B is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65 or 100 kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand reduces further, it enters into a skip mode to reduce the standby consumption down to a no load condition.
Protection features include: a timer to detect an overload or a short circuit event, Over voltage Protection with auto recovery. Ac input line voltage detection prevents lethal runaway in low input voltage conditions (Brown-out) as well as too high an input line (Ac line Over voltage Protection). This also allows an Over power Protection to compensate all internal delays in high input voltage conditions and optimize the maximum output current capability.
For improved standby performance, the connection of an auxiliary winding stops the DSS operation and helps to reduce input power consumption below 50 mW at high line.
Features   Benefits
     
  • Integrated 700 V MOSFET with RDS(on) of 13.5 Ω
 
  • Up to 20 W output SMPS design capability
  • Current-Mode Fixed Frequency Operation (65 & 100 kHz) - 130 kHz for B version only
 
  • Ability to scale for efficiency or size
  • Peak Current: NCP1075A/B = 400 mA
 
  • Adjust output current protection based on output power demand
  • Skip-Cycle Operation at Low Peak Current
 
  • Eliminate acoustic noise
  • Dynamic Self-Supply (DSS)
 
  • Eliminate Aux winding
  • Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
 
  • Provides more robust protection without worrying about the coupling of the aux winding
  • Frequency Foldback Operation
 
  • Improved efficiency at light load / Improved EMI over the entire load
  • 300 µA No Load Power Consumption
 
  • <50mW no Load Power
  • Frequency Jittering (including during frequency foldback mode)
 
  • Better EMI Signature Over the Entire Operating Range
  • Adjustable Brown-out Protection and OVP
 
  • Enhanced Protection Against too Low or too High Input Voltage
  • Over Power Protection
 
  • Higher Protection of the load in wide Mains Conditions
  • 2nd Level Current Protection
 
  • Protection in case of secondary diode short
Applications   End Products
  • Auxiliary & Standby Power Supply
  • Major Home Appliances power supplies
  • Low to medium Power Chargers & Adapters
 
  • White Goods & Home Appliances
  • E-Meters
  • Industrial auxiliary Power Supply
  • Consumer Equipment Power Supply
Technical Documentation & Design Resources
Data Sheets (1) Videos (1)
Package Drawings (2)  
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1075AAP065G Active
Pb-free
Halide free
NCP1075A, A Package 65 kHz version PDIP-7 626A-01 NA Tube 50 $0.5176
NCP1075AAP100G Active
Pb-free
Halide free
NCP1075A, A package 100 kHz version PDIP-7 626A-01 NA Tube 50 $0.5176
NCP1075ABP065G Active
Pb-free
Halide free
NCP1075A PDIP-7 626A-01 NA Tube 50 $0.5176
NCP1075ABP100G Active
Pb-free
Halide free
NCP1075A PDIP-7 626A-01 NA Tube 50 $0.5176
NCP1075BAP065G Active
Pb-free
Halide free
NCP1075A, B Package 65 kHz version PDIP8 Less Pin 3 626AS NA Tube 50 $0.5176
NCP1075BAP100G Active
Pb-free
Halide free
NCP1075A, B Package 100 kHz version PDIP8 Less Pin 3 626AS NA Tube 50 $0.5176
NCP1075BAP130G Active
Pb-free
Halide free
NCP1075A, B Package 130 KHz version PDIP8 Less Pin 3 626AS NA Tube 50 $0.5176
NCP1075BBP065G Active
Pb-free
Halide free
NCP1075A PDIP8 Less Pin 3 626AS NA Tube 50 $0.5176
NCP1075BBP100G Active
Pb-free
Halide free
NCP1075A PDIP8 Less Pin 3 626AS NA Tube 50 $0.5176
NCP1075BBP130G Active
Pb-free
Halide free
NCP1075A PDIP8 Less Pin 3 626AS NA Tube 50 $0.5176
Market Leadtime (weeks) : 17 to 20
Market Leadtime (weeks) : 13 to 16
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 11,450
Market Leadtime (weeks) : 13 to 16
Market Leadtime (weeks) : 17 to 20
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8

Product
Description
Pricing ($/Unit)
Compliance
Status
Control Mode
fsw Typ (kHz)
fJitter Typ (%)
Stand-by Mode
RDS(ON) Typ (Ω)
V(BR)DSS Max (V)
IPeak (mA)
HV Start-up Min (V)
DSS (mA)
UVLO
Short Circuit Protection
Over Power Compensation
Brown-out
Latch
Package Type
NCP1075AAP065G  
 $0.5176 
Pb
H
 Active   
Current Mode
65
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP-7
NCP1075AAP100G  
 $0.5176 
Pb
H
 Active   
Current Mode
100
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP-7
NCP1075ABP065G  
 $0.5176 
Pb
H
 Active   
Current Mode
65
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP-7
NCP1075ABP100G  
 $0.5176 
Pb
H
 Active   
Current Mode
100
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP-7
NCP1075BAP065G  
 $0.5176 
Pb
H
 Active   
Current Mode
65
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP8 Less Pin 3
NCP1075BAP100G  
 $0.5176 
Pb
H
 Active   
Current Mode
100
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP8 Less Pin 3
NCP1075BAP130G  
 $0.5176 
Pb
H
 Active   
Current Mode
130
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP8 Less Pin 3
NCP1075BBP065G  
 $0.5176 
Pb
H
 Active   
Current Mode
65
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP8 Less Pin 3
NCP1075BBP100G  
 $0.5176 
Pb
H
 Active   
Current Mode
100
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP8 Less Pin 3
NCP1075BBP130G  
 $0.5176 
Pb
H
 Active   
Current Mode
130
Yes
Yes
11.5
700
400
Yes
9.2
6.5
Yes
Yes
Yes
No
PDIP8 Less Pin 3
Case Outlines
626A-01    626AS   
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