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reference designTEA1721XT

NXP TEA1721XT

TEA1721 universal mains white goods flyback SMPS demo board

Overview

TopologyFlyback Converter
Input voltage85-560 V
Switching frequency50 kHz
Output 124 V / 0.2 A
Output 25 V / 0.3 A
Output 33.3 V / 0.3 A
IC revision1

Description

This user manual describes the TEA1721 based 12 V and 3.3 V AC/DC SMPS demo board which provides 5 W into a load.

The switch-mode converter operates in flyback mode at a maximum frequency of around 50 kHz. Over-current and short circuit protection are built in.

Under no-load conditions, the power consumption of the flyback converter is around 20 mW. This application is typically suited for White Goods appliances and industrial applications.

Features

  • Compatible with Universal Mains 85 V (AC) to 265 V (AC)
  • Dual output voltage 12 V (DC) and 3.3 V (DC)
  • Primary side voltage regulation removes the need for an optocoupler
  • Total maximum power is 5 W
  • No-load power consumption of 20 mW

More information

Products

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Data­sheet
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IR(A)
L(mH)
RDC max.(Ω)
VR(V (AC))
VT(V (AC))
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H(mm)
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SamplesAvailability & Sample
744862250
SPECWE-TFC Common Mode Power Line Choke, 0.25 A, 25 mH
Simu­lation
Availability
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TFC Common Mode Power Line Choke
Rated Current0.25 A
Inductance25 mH
DC Resistance3.6 Ω
Rated Voltage300 V (AC)
Insulation Test Voltage2500 V (AC)
MaterialMnZn 
Length17 mm
Width11.5 mm
Height17 mm
MountTHT 
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