TEA1721ADB1059: TEA1721 Non-isolated buck converter demo board

Overview

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.

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Specifications

Technical and Functional Specifications

AC line input voltage: 85 V (AC) to 265 V (AC)
Output voltage: 12 V (DC) in Buck 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

Supported Devices

Power Management

AC-DC Controllers with Integrated Power Switch

TEA1721BT : HV start-up flyback controller with integrated MOSFET for 5 W applications, f~burst = 905 Hz
TEA1721DT : HV start-up flyback controller with integrated MOSFET for 5 W applications, f~burst = 1270 Hz
TEA1721FT : HV start-up flyback controller with integrated MOSFET for 5 W applications, f~burst = 1750 Hz
TEA1723AT : HV start-up flyback controller with integrated MOSFET for 11 W applications, f~burst = 430 Hz
TEA1723BT : HV start-up flyback controller with integrated MOSFET for 11 W applications, f~burst = 905 Hz
TEA1723DT : HV start-up flyback controller with integrated MOSFET for 11 W applications, f~burst = 1270 Hz
TEA1723FT : HV start-up flyback controller with integrated MOSFET for 11 W applications, f~burst = 1750 Hz

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Buy

TEA1721ADB1059 ^Active
TEA1721 Non-isolated buck converter demo board
- Demo board
- Quick start guide

- TEA1721ADB1059,598
- 1 @ US
- $210.00
- Buy Direct
  
  Availability?

Documents and Software

Documents

Application Note ( 1 )

TEA172X 5 W to 11 W Power Supply/USB charger^{(REV
1.2
)}
- 24 May 2012
- pdf
- 2.7 MB
- AN11060
- [ English ]

Brochure ( 1 )

NXP^® GreenChip low-power SMPS controllers TEA172x^{(REV
1.0
)}
- 20 Aug 2012
- pdf
- 342.0 kB
- 75017320
- [ English ]

Users Guide ( 1 )

TEA1721 non-isolated universal mains buck and buck/boost converter demo board^{(REV
1.1
)}
- 19 Dec 2012
- pdf
- 535.0 kB
- UM10522
- [ English ]

TEA1721ADB1059: TEA1721 Non-isolated buck converter demo board

Overview

Specifications

Technical and Functional Specifications

Supported Devices

Power Management

Buy

TEA1721ADB1059 Active

Documents and Software

Documents ( 3 )

Documents

Application Note ( 1 )

TEA172X 5 W to 11 W Power Supply/USB charger (REV 1.2 )

Brochure ( 1 )

NXP® GreenChip low-power SMPS controllers TEA172x (REV 1.0 )

Users Guide ( 1 )

TEA1721 non-isolated universal mains buck and buck/boost converter demo board (REV 1.1 )

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TEA1721ADB1059 ^Active

TEA172X 5 W to 11 W Power Supply/USB charger^{(REV
1.2
)}

NXP^® GreenChip low-power SMPS controllers TEA172x^{(REV
1.0
)}

TEA1721 non-isolated universal mains buck and buck/boost converter demo board^{(REV
1.1
)}