IC manufacturers Onsemi

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Onsemi NCP1632 | Demoboard NVE052A

Power Factor Controller, Interleaved, 2-Phase

Overview

TopologyPower Factor Correction
Input voltage90-265 V
Output 120 V / 15 A

Description

The NCP1632 integrates a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost−effective technique (no need for low trr diodes). In addition, the NCP1632 drivers are 180° phase shifted for a significantly reduced current ripple. Housed in a SOIC16 package, the circuit incorporates all the features necessary for building robust and compact interleaved PFC stages, with a minimum of external components

Features

  • Near−Unity Power Factor
  • Substantial 180° Phase Shift in All Conditions Including Transient Phases
  • Frequency Clamped Critical Conduction Mode (FCCrM) i.e., Fixed Frequency, Discontinuous Conduction Mode Operation with Critical Conduction Achievable in Most Stressful Conditions
  • FCCrM Operation Optimizes the PFC Stage Efficiency Over the Load Range
  • Out−of−phase Control for Low EMI and a Reduced rms Current in the Bulk Capacitor
  • Frequency Fold−back at Low Power to Further Improve the Light Load Efficiency
  • Accurate Zero Current Detection by Auxiliary Winding for Valley Turn On
  • Fast Line / Load Transient Compensation
  • High Drive Capability: −500 mA / +800 mA
  • Signal to Indicate that the PFC is Ready for Operation (“pfcOK” Pin)
  • VCC Range: from 10 V to 20 V

Typical applications

  • Computer Power Supplies, All Off Line Appliances Requiring Power Factor Correction
  • LCD / Plasma Flat Panels

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Ø D
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
890324025045SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors Across the mains680 nF X2 230 0.114.71 GΩ -40 °C up to +105 °C 15 Bulk 275 18 10 16 Boxed THT
7448030509SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMBNC Common Mode Power Line Choke Nanocrystalline 5 9 32 300 2100 Nanocrystalline 23 13.5 26 THT
860040478012SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATUL Aluminum Electrolytic Capacitors1000 µF -40 °C up to +105 °C 5 Ammopack 10000 1800 250 14 13 25 20
Order Code Data­sheet Simu­lation
890324025045SPEC
7448030509SPEC
860040478012SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Ø D
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples