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NCP1126: High Voltage Switching Regulator for Offline SMPS

Overview
Specifications
Applications
Datasheet: High Voltage Switcher for Offline Power Supplies
Rev. 3 (189kB)
Product Overview
»View Reliability Data
»View Material Composition
»No Product Change Notifications exist
The NCP1126 products integrates a fixed−frequency peak current mode controller with a low on− resistance high voltage, 650 V MOSFET. Available in a PDIP−7 package, the NCP1126 offers a high level of integration, including soft−start, frequency−jittering, short−circuit protection, thermal shutdown protection, frequency foldback mode and skip−cycle to reduce power consumption in light load condition, peak current mode control with adjustable internal ramp compensation and adjustable peak current set point. 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 no load condition. Protection feature include: a timer to detect an overload or a short−circuit event with auto−recovery or latch protection, and a built−in VCC overvoltage protection. The switcher also provides a jittered 65 kHz or 100 kHz switching frequency to improve the EMI.
Features   Benefits
     
  • 650 V Avalanche Rated MOSFET
 
  • Rugged MOSFET for robust design
  • FixedFrequency 65 or 100 kHz CurrentMode Control Operation
 
  • Ability to scale for efficiency or size
  • Frequency Foldback Down to 26 kHz and SkipCycle in Light Load Conditions
 
  • Eliminate acoustic noise and improved efficiency at light loads
  • Adjustable Current Limit with External Resistor
 
  • Scale for various designs 5W~20W
  • 50 ms Timer-Based Auto-Recovery Short-Circuit Protection
 
  • Provides more robust protection without worrying about the coupling of the aux winding
  • Frequency Jittering in Normal and Frequency Foldback Modes
 
  • Improved efficiency at light load / Improved EMI over the entire load
  • Option for Auto-Recovery or Latched Short-Circuit Protection
 
  • Flexible protection options
  • Less than 100 mW Standby Power at High Line
 
  • EPS 2.0 Compliant
Applications   End Products
  • Power Supply
 
  • Power supply for DVD, STB, CD-Player
  • Aux supply for TV, USB, Appliance
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1126DIPGEVB Active
Pb-free
15W Offline Power Supply High Voltage Switcher Evaluation Board
Avnet (2017-02-27) : 2
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
NCP1126AP100G Active
Pb-free
Halide free
High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Latch PDIP-8 626B NA Tube 50 $0.42
NCP1126AP65G Active
Pb-free
Halide free
High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Latch PDIP-8 626B NA Tube 50 $0.42
NCP1126BP100G Active
Pb-free
Halide free
High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Auto-recovery PDIP-8 626B NA Tube 50 $0.42
NCP1126BP65G Active
Pb-free
Halide free
High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Auto-recovery PDIP-8 626B NA Tube 50 $0.42
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2017-02-27) : <100
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2017-02-25) : 38,300
Market Leadtime (weeks) : Contact Factory
Arrow   (Mon Feb 27 22:54:28 MST 2017) : 89
Mouser   (2017-02-27) : >1K
Datasheet: High Voltage Switcher for Offline Power Supplies
Rev. 3 (189kB)
Product Overview
»View Reliability Data
»View Material Composition
»No Product Change Notifications exist

Product Compliance Status Description 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
Pb-free
Halide free
 Active     High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Latch 
Current Mode
100
+/-5% of FSW
Yes
6
650
0
Yes
0
8.8
Yes
No
No
Yes
PDIP-8
Pb-free
Halide free
 Active     High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Latch 
Current Mode
65
+/-5% of FSW
Yes
6
650
0
Yes
0
8.8
Yes
No
No
Yes
PDIP-8
Pb-free
Halide free
 Active     High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Auto-recovery 
Current Mode
100
+/-5% of FSW
Yes
6
650
0
Yes
0
8.8
Yes
No
No
No
PDIP-8
Pb-free
Halide free
 Active     High Voltage Switching Regulator for Offline SMPS, 6-Ohm, Auto-recovery 
Current Mode
65
+/-5% of FSW
Yes
6
650
0
Yes
0
8.8
Yes
No
No
No
PDIP-8
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Featured Video
Offline Power Supply Solutions with the NCP1126DIPGEVB Evaluation Board

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