en

Cart

Your cart is empty.

IC reference design search
IC manufacturers Onsemi

IC manufacturers (85)

Onsemi NCP1680 | Demoboard NCP1680 –300W PFC

Totem Pole CrM Controller Evaluation Board

Overview

TopologyPower Factor Correction
IC revision1.1

Description

The NCP1680 is a Critical Conduction Mode (CrM) Power Factor Correction (PFC) controller IC designed to drive the bridgeless Totem Pole PFC (TPFC) topology. The bridgeless totem pole PFC consists of two totem pole legs:a fast switching leg driven at the PWM switching frequency and a second leg that operates at the AC line frequency. Thistopology eliminates the diode bridge present at the input of a conventional PFC circuit, allowing significant improvement in efficiency and power density.

Features

  • Totem Pole PFC Topology Eliminates Input Diode Bridge.
  • Critical Conduction Mode (CrM) Operation.
  • Discontinuous Conduction Mode (DCM) with Valley Turn On Under Light Load Condition.
  • Frequency Foldback in DCM With 25 kHz Minimum Frequency
  • Skip Mode in Very Light Load Condition
  • Proprietary Current Sense Scheme
  • Digital Voltage Loop Compensation
  • AC Line Monitoring Circuit & AC Phase Detection
  • Near Unity Power Factor in All Operating Modes
  • PFC OK Indicator

Products

Order Code Data­sheet Simu­lation Downloads Product seriesCTol. CSizeOperating TemperatureQRISOCeramic TypeFl
(mm)
PackagingTechnical ReferenceIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
885012006053SPEC
6 files WCAP-CSGP MLCCs 50 V(DC)22 pF ±5% 0603 -55 up to +125 °C 84010 GΩ NP0 Class I 0.4 7\" Tape & Reel NP00603220J050DFCT10000 50 1.6 0.8 0.8
7448040707SPEC
8 files WE-CMBNC Common Mode Power Line Choke Nanocrystalline L -40 up to +125 °C 7 7 20 250 1500 Nanocrystalline 27.5 19 32 THT
7448040435SPEC
8 files WE-CMBNC Common Mode Power Line Choke Nanocrystalline L -40 up to +125 °C 3.5 35 80 250 1500 Nanocrystalline 27.5 18 32 THT
7447076SPEC
6 files WE-FI Leaded Toroidal Line Choke -40 up to +105 °C 6.1 0.15 45 27.5 13.6 THT
750319168SPEC
PFC Inductor
Order Code Data­sheet Simu­lation
885012006053SPEC
7448040707SPEC
7448040435SPEC
7447076SPEC
750319168SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesCTol. CSizeOperating TemperatureQRISOCeramic TypeFl
(mm)
PackagingTechnical ReferenceIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples