TEA1721ADB1060

TEA1721 Non-isolated buck/boost converter demo board


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Demo board description

This board demonstrates a +12 V AC/DC buck and −12 V AC/DC non-isolated buck/boost-mode SMPS that can be used to supply up to 2.5 W into a load. Operation in buck or buck/boost-mode can be selected with the on-board jumper.

The switch mode converter operates at a maximum frequency of around 50 kHz.

Overcurrent and short-circuit protection are built in. Under no-load conditions, the power consumption of this converter is in the range of 10 mW. EMI filtering and (optional) surge voltage protection using TVS diodes is implemented in this circuit.

This application is a general purpose unisolated SMPS.

In applications where triacs are driven in the third quadrant (such as white goods applications), the negative output voltage with respect to Neutral or Phase makes buck/boost converters particularly interesting.

The optional surge protection makes it suitable for use in environments where serious voltage transients can occur. The absolute maximum RMS mains input voltage is 280 V (AC).

Features

  • AC line input voltage: 85 V (AC) to 265 V (AC)
  • Output voltage: -12 V(DC) in Buck/boost mode
  • Maximum output current: -200 mA
  • Maximum output power: 2.5 W
  • Output voltage accuracy: +2 % to −5 %
  • Output voltage stability: ≥ ± 1 %
  • Efficiency: ± 77 % at full load
  • No-load power consumption: <10 mW
  • IC used: TEA1721AT

Descriptive summary

Demobox content

Demoboard, Quick start guide

All information on this product information page is subject to the subsequent disclaimers:
TEA1721ADB1060
TEA1721ADB1060

TEA1721ADB1060


Documentation for this product

File nameTitleTypeFormatDate
AN10912SMPS EMC and layout guidlinesApplication notepdf2011-02-18
75017320NXP GreenChip low-power SMPS controllers TEA172x Leafletpdf2012-08-21
TEA1721ADB1060_Gerber_filesGerber files TEA1721ADB1060Other typezip2012-02-09
UM10522TEA1721 non-isolated universal mains buck and buck/boost converter demo boardUser manualpdf2012-12-19

Demo boards

Type numberOrdering code(12NC)Orderable part numberProducts statusRegionDistributorIn stockOrder quantityInventory dateBuy online
TEA1721ADB10609352 976 03598TEA1721ADB1060,598Volume productionEUARROW EUROPE55/21/2013Buy online

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