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Wise Integration WI62175 | Demoboard 65-W USB-C PD ACF

65W USB-C PD Active-Clamp Flyback Converter using WI62175

Overview

TopologyFlyback Converter
Input voltage90-264 V
Output 120 V / 3.25 A

Description

This design document describes a 65-W USB-C PD evaluation module which converts a universal input voltage of 90-VRMS to 264-VRMS down to 5 V, 9 V, 12V, 15 V and 20 V. This featured power supply is an active-clamp flyback topology utilizing Texas Instrument’s UCC28782 controller, and WiseGaN Half Bridge WI62175. This design note provides complete circuit schematic, PCB, BOM and transformer information of the evaluation board. It also provides efficiency and thermal data of the evaluation board. Active-clamp flyback topology effectively recycles the leakage energy. Another feature of this topology is the ZVS operation of the power transistors. Because of no leakage losses and ZVS operation, this topology is suited for high frequency operation which results in size reduction of the transformer. A ZVS fixed switching frequency power converter also simplifies EMI design and can be easily designed to avoid interference with other sensitive circuits in the system.

Features

  • 650V Enhanced Mode Power Switch
  • Underside Cooling Configuration
  • Low inductance PQFN package
  • 350 Qm to 70 Qm resolution
  • Standard Gate Drive Requirements from 0V to 6V
  • 20V/10V Transient Tolerant Gate Drive
  • 1MHz switching frequency

  • Controllable Fall Time and Rise Time
  • Comprehensive sense of origin
  • reverse current capability
  • Zero reverse recycling loss
  • 6x8mm? PCB size

Typical applications

  • Ultra-small form factor SMPS for industrial applications, Open frame power supplies
  • E-mobility

Products

Order Code Data­sheet Simu­lation Downloads Product seriesPinsApplicationPCB/Cable/PanelModularityTypeWire SectionCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureQ
(%)
DF
(%)
Ceramic TypeFl
(mm)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Interface TypeGenderIR
(A)
Working Voltage
(V (AC))
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
Z @ 100 MHz
(Ω)
IR
(A)
RDC max.
(mΩ)
Z @ 25 MHz
(Ω)
L
(mm)
W
(mm)
H
(mm)
VersionL
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialMount Samples
691216710002SPEC
6 files WR-TBL Series 2167 - 5.00 mm Horizontal Entry Modular w. Rising Cage Clamp 2 Rising Cage Clamp PCB Yes Horizontal 30 to 12 (AWG) 0.05 to 3.31 (mm²) -30 °C up to +120 °C 5 Box -30 °C up to +120 °C 250 24 10 THT
744821201SPEC
10 files WE-CMB Common Mode Power Line Choke 4 -40 °C up to +125 °C XS -40 °C up to +125 °C 2 2 45 15 7.8 18 THT 1 250 1500 MnZn THT
632723300011SPEC
6 files WR-COM USB 3.1 Type C Receptacle Horizontal THR / SMT 24 USB 3.1 Horizontal1000 MΩ Tape and Reel -40 °C up to +105 °C Type C Receptacle 20 5 THR
7427931SPEC
8 files WE-PBF Flat Wire High Current SMT Ferrite Bead -55 °C up to +125 °C 8530 -55 °C up to +125 °C 1.45 6 91 17 0.9 58 8.5 3 2.55 SMT SMT
890324024005SPEC
7 files WCAP-FTX2 Film Capacitors Across the mains470 nF X2 280 0.121.28 GΩ -40 °C up to +105 °C 12.5 Bulk ±10% Pitch 12.5 mm -40 °C up to +105 °C 15 10 16 275 Boxed THT
74404064220SPEC
8 files WE-LQS SMT Power Inductor -40 °C up to +125 °C 6045 -40 °C up to +125 °C 2.5 89 15 2.1 6 6 4.5 0.022 SMT
860021380020SPEC
7 files WCAP-ATG5 Aluminum Electrolytic Capacitors100 µF -25 °C up to +105 °C 7.5 Ammopack ±20% 15 2000 520 1200 16 31.5 400
885012006060SPEC
8 files WCAP-CSGP MLCCs 50 V(DC)330 pF10 GΩ 7" Tape & Reel ±5% 0603 -55 °C up to +125 °C 1000 NP0 Class I 0.4 1.6 0.8 0.8 50
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesPinsApplicationPCB/Cable/PanelModularityTypeWire SectionCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureQ
(%)
DF
(%)
Ceramic TypeFl
(mm)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Interface TypeGenderIR
(A)
Working Voltage
(V (AC))
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
Z @ 100 MHz
(Ω)
IR
(A)
RDC max.
(mΩ)
Z @ 25 MHz
(Ω)
L
(mm)
W
(mm)
H
(mm)
VersionL
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialMount Samples