On July 22, 2021, Dalian General Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary Pinjia has launched a 240W 5G open frame solution based on NXP’s TEA2206.
Figure 1 – The Display board of Dalian Dapinjia’s 5G open frame solution based on NXP products
At present, the system’s power design requirements are becoming more and more demanding. With the continuous improvement of energy regulations and the ever-increasing requirements for efficiency, in the case of extreme power supplies, simply using the original architecture can no longer meet the needs. Therefore, a new generation of architecture must be designed to meet the current needs. Dalian Dapinjia has launched an open frame solution based on NXP technology for high-efficiency 5G power supply applications. This solution is equipped with an input-side synchronous rectification technology IC TEA2206T. There are fewer parts around this IC, and without adding too much space, It can effectively improve the efficiency and replace the traditional bridge rectifier architecture.
Figure 2 – The physical diagram of Dalian Dapinjia’s 5G open frame solution based on NXP products
The TEA2206T is an active bridge rectifier controller suitable for replacing two low-side diodes in conventional diode bridges with MOSFETs. Since the typical rectifier diode forward conduction losses have been eliminated, using the TEA2206T with a low-resistance high-voltage external MOSFET can significantly improve the efficiency of the power converter. Compared with the traditional architecture, the efficiency can be improved by about 0.78% when the voltage is 115Vac input. , so that the efficiency of the whole machine exceeds 90%. In addition, TEA2206T also has X capacitor discharge function, which can effectively reduce no-load loss.
Figure 3 – Block diagram of Dalian Dapinjia’s 5G open frame solution based on NXP products
Core technical advantages:
Ÿ Fewer external parts;
Ÿ Direct drive MOSFET does not need to drive the line;
Ÿ AC closes the fast discharge function;
Ÿ X-cap discharge function effectively reduces no-load loss;
Ÿ High-voltage start-up self-sufficient power supply.
Ÿ Input voltage 90V~264V;
Ÿ Output voltage 12V;
Ÿ Output power 240W;
Ÿ No-load loss is less than 0.5W.