NCP1602: Power Factor Controller, Enhanced Light Load Efficiency

Description: The 6-pin PFC controller NCP1602 is designed to dr...
  • The 6-pin PFC controller NCP1602 is designed to drive PFC boost stages. It is based on an innovative Valley Synchronized Frequency Fold-back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when control voltage exceeds a programmable value Vctrl,FF. When Vcontrol is below this preset level Vctrl,FF, the NCP1602 (versions [B**] and [D**]) linearly decays the frequency down to about 30 kHz until Vcontrol reaches the SKIP mode threshold. VSFF maximizes the efficiency at both nominal and light load. In particular, the stand-by losses are reduced to a minimum. Like in FCCrM controllers, internal circuitry allows near-unity power factor even when the switching frequency is reduced. Housed in a TSOP6 package, the circuit also incorporates the features necessary for robust and compact PFC stages, with few external components.
  • Features
  • Critical Conduction mode with current controlled frequency foldback - Optimizes conversion efficiency across load range
  • Valley Synchronized Frequency Fold-back (VSFF) - Enhanced efficiency at light load conditions compared to CrM PFC
  • Works with or without a transformer w/ ZCD winding - Reduced inductor cost and simplified design
  • Dynamic Response Enhancer - Improved transient response for line and load steps
  • Applications
  • Offline power supply
  • End Products
  • Flat Panel TV
  • High Power Adapters
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Availability and Samples
    NCP1602ABASNT1G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:3,000
  • NCP1602ACCSNT1G
  • Status: Active, Not Rec
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • ON Semiconductor:36,000
  • NCP1602AEASNT1G
  • Status: Active, Not Rec
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • NCP1602AFCSNT1G
  • Status: Active, Not Rec
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • ON Semiconductor:6,000
  • NCP1602BEASNT1G
  • Status: Active, Not Rec
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:30,000
  • NCP1602DCCSNT1G
  • Status: Active, Not Rec
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • NCP1602DFCSNT1G
  • Status: Active, Not Rec
  • Compliance: Pb-free Halide free 
  • Description: Power Factor Controller, Enhanced Light Load Efficiency
  • Package Type: TSOP-6
  • Package Case Outline: 318G-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Specifications
  • PFC Mode: CRM 
  • Frequency Operation: Variable 
  • Control Mode: Current Mode 
  • Topology: Step-Up 
  • fSW Typ (kHz): Variable 
  • VCC Max (V): 30 
  • Drive Cap. (mA): 500 / 800 
  • UVLO (V):  
  • Latch: Yes 
  • UVP: Yes 
  • Inhibition: No 
  • Package Type: TSOP-6 
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