In recent years, with the surge of global electrical equipment, power technology is constantly innovating and iterating. However, although technological breakthroughs have made great progress in the efficiency of power supply products, the problem of massive energy consumption in electronic products in the standby state has not been effectively solved. Therefore, the demand for reducing standby power is still full of challenges. . In this regard, Dalian Dapinjia launched a 60W high-efficiency ultra-low standby power supply solution based on the Infineon ICE5GSAG device.
ICE5GSAG is the fifth-generation fixed-frequency PWM controller introduced by Infineon, which is optimized for offline switch-mode power supplies in cascaded configurations, helping to achieve fast start-up of the power supply, suitable for standby power supply products in a flyback architecture . And the product itself can be used with MOSFETs of different Rds-on levels to meet the design of different output wattages and increase the flexibility and versatility of the product design. In addition, the ICE5GSAG has built-in various protection functions, so it can support the power system even in the event of electronic product failure.
With excellent performance, this scheme can effectively reduce the power consumption in standby mode. And with the help of the various circuit protection functions integrated in the ICE5GSAG device, the solution can reduce the number of surrounding circuit components. In addition, since the ICE5GSAG can operate in high frequency mode, it further reduces the size of the magnetic components. Benefiting from these advantages, this solution has the characteristics of high efficiency, low cost and small volume. In terms of safety, it complies with the US energy efficiency regulations DOE and the EU CoC energy agreement specifications.
Core technical advantages:
● Provide high-efficiency standby power application;
● The average efficiency can reach 87.41%@230Vac and 86.85%@115Vac;
● Standby power consumption can be less than 100mW@230Vac;
● With brownout/input over-voltage/over-current/over-temperature/output short-circuit protection/CS short-circuit protection/Vcc short-circuit protection various protection functions.
Program Specifications:
● ICE5GSAG is a 125KHz fixed frequency design, which can meet the needs of reducing size and increasing power density;
● It has the function of adjusting the entry and exit points of active burst mode in two stages;
● Built-in Line OVP function to avoid damage to other components caused by excessive input voltage;
● With jitter function, the impact of EMI can be greatly reduced;
● When starting, it will automatically detect whether the Vcc pin is short-circuited to avoid abnormal operation of the IC.
