NCP1126: High Voltage Switching Regulator for Offline SMPS

Overview
Specifications
Applications
Datasheet: High Voltage Switcher for Offline Power Supplies
Rev. 2 (188kB)
»View Material Composition
»No Product Change Notifications exist
Product Overview
Product Description
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
Technical Documentation & Design Resources
Design & Development Tools (2) Package Drawings (1)
Design Notes (1) Videos (2)
Data Sheets (1) Evaluation Board Documents (4)
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1126DIPGEVB Active
Pb-free
15W Offline Power Supply High Voltage Switcher Evaluation Board
Avnet  (2014-10-21) : 1
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) :
Avnet   (2014-10-21 00:00) : <100
Future Electronics   (2014-10-21 00:00) : <100
ON Semiconductor   (2014-10-22 00:00) : 200
Market Leadtime (weeks) :
Avnet   (2014-10-21 00:00) : <100
ON Semiconductor   (2014-10-22 00:00) : 569
Market Leadtime (weeks) :
Avnet   (2014-10-21 00:00) : <100
ON Semiconductor   (2014-10-22 00:00) : 200
Market Leadtime (weeks) :
Avnet   (2014-10-21 00:00) : <100
ON Semiconductor   (2014-10-22 00:00) : 400
Datasheet: High Voltage Switcher for Offline Power Supplies
Rev. 2 (188kB)
»View Material Composition
»No Product Change Notifications exist
Product Overview

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 Comp. 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 
Datasheet: High Voltage Switcher for Offline Power Supplies
Rev. 2 (188kB)
»View Material Composition
»No Product Change Notifications exist
Product Overview
Case Outlines
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