Texas Instruments UCC28742DBVR | Demoboard PMP21462 | Würth Elektronik Reference Design Search

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reference designUCC28742DBVR | Demoboard PMP21462

Overview

Topology	Flyback Converter
Input voltage	90-490 V
Switching frequency	80-130 kHz
Output 1	4 V / 2 A
IC revision	A

Description

This reference design is a quasi-resonant flyback developed to be resistant to large magnetic fields near the transformer. It has a regulated 4 Volt output that can handle up to 2 A of current and secondary 10 V output that can handle 0.4 A.

Features

90 VAC to 490 VAC input to 4 V/2 A isolated output
Secondary output of 10 V/ 400 mA
Iron Powder Transformer for improved magnetic resistance
Topology designs to run at a low frequency to further increase magnetic resistance

Typical applications

Smart Electricity MetersSmart Electricity Meters
AC-to-DC Power Supply for Appliances
Power Supply for Cable Modem, Television, Set-Top Box, and Wireless Routers
Industrial and Medical AC-to-DC Power Supplies / Bias Supply for UPS, Server PSU

More information

Datasheet

Products

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	I_SAT(A)	f_res(MHz)	I_R(A)	L(µH)	R_{DC max.}(Ω)	V_R(V (AC))	V_T(V (AC))	Material	L(mm)	W(mm)	H(mm)	Mount	Samples
	768772221	WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage), 1.3 A, 3.7 MHz	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TIHV (rev22c).IntLib \| 324 KB CDS Cadence_WE-TI HV (rev22b).zip \| 4.3 MB EAG Eagle_WE-TIHV (rev23a).lbr \| 30.5 KB KIC KiCad_WE-TIHV (rev25b).zip \| 2.4 MB ZUK Download_CadStar_WE-TI-HV (rev19a).zip \| 7.8 KB CAD files ZIP IGS WE-TI_HV_Typ_L_HV (rev1).igs \| 2.1 MB STP WE-TI_HV_Typ_L_HV (rev1).stp \| 1015.4 KB Electric models ZIP PSP PSpice_WE-TI-HV (rev24a).zip \| 6 KB SCS Spectre_WE-TI_HV (rev24a).mod \| 5.8 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TI HV Radial Leaded Wire Wound Inductor (High Voltage)	Saturation Current1.3 A	Self Resonant Frequency3.7 MHz	Rated Current0.9 A	Inductance220 µH	DC Resistance0.6 Ω	–	–	–	Length7.8 mm	Width7.8 mm	Height9.5 mm	MountTHT
	744821150	WE-CMB Common Mode Power Line Choke, –, –	Simulation	Downloads10 files EDA models: Components ZIP ALT WE-CMB (rev25a).IntLib \| 8.2 MB CDS Cadence_WE-CMB (rev25a).zip \| 147.1 MB EAG Eagle_WE-CMB (rev21d).lbr \| 70.6 KB KIC KiCad_WE-CMB (rev25b).zip \| 38.7 MB ZUK Cadstar_WE-CMB (rev21b).zip \| 20.8 KB CAD files ZIP 3D 3D_IndCMB_XS_744821150 (rev1).pdf \| 62.5 MB IGS IGS_744821150 (rev1).igs \| 13.4 MB STP STP_744821150 (rev1).stp \| 4.3 MB Electric models ZIP PSP PSpice_WE-CMB (rev25a).zip \| 14.3 KB S S-Parameter_744821150 (rev20a).s4p \| 309.6 KB	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-CMB Common Mode Power Line Choke	–	–	Rated Current1 A	Inductance5000 µH	DC Resistance0.22 Ω	Rated Voltage250 V (AC)	Insulation Test Voltage1500 V (AC)	MaterialMnZn	Length15 mm	Width7.8 mm	Height18 mm	MountTHT
	750317656	Transformer, –, –	Simulation–	Downloads–	Status Activei\| Production is active. Expected lifetime: >10 years.	Product series Transformer	–	–	–	–	–	–	–	–	–	–	–	–