onsemi NCP1680 User Manual

NCP1680 - Totem Pole CrM Controller Evaluation
Board User's Manual
EVBUM2822/D
Introduction
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. This
topology eliminates the diode bridge present at the input of
a conventional PFC circuit,
improvement in efficiency and power density.
Figure 1. NCP1680 Evaluation Board
The NCP1680 Evaluation Board (EVB) user guide
demonstrates a universal line, 300 W totem pole PFC built
using NCP1680. NCP1680 is intended for Industrial power
supplies, Telecom/5G/Networking power, USB PD,
Gaming consoles, UHD TV power supplies, and Lighting
applications. TPFC topology eliminates the need for
heatsinks or forced air in the NCP1680 EVB while operating
at an ambient of 25°C.
© Semiconductor Components Industries, LLC, 2022
February, 2022 − Rev. 0
allowing significant
1
EVAL BOARD USER'S MANUAL
Table 1. KEY SPECIFICATIONS
Description
Input Voltage Range
Line Frequency Range
Output Voltage
Output Power
Output Ripple
PF @ Full Load
THD @ Full Load
Inductor Value
Inductor Core Size/Geometry
Bulk Capacitor Value
Maximum Frequency
NOTE: NCP1680 EVB is a high voltage demonstration
board. It can accept an input voltage of 90 Vac to
265 Vac and the output voltage of the board is
395 Vdc nominally.
demonstration purposes only and should not be
used to power any loads other than an electronic
load. Only trained professionals in using high
voltage equipment should handle the board and
appropriate safety
followed.
www.onsemi.com
Value Unit
90−265 Vac
47−63 Hz
395 V
300 W
< 5 %
> 0.95
< 10 %
150
mH
PQ3220
200 mF
130 kHz
This EVB is for
precautions should be
Publication Order Number:
EVBUM2822/D