See how Wenxian Microelectronics leads the domestic power management IC market

OFweek Power Network: According to the market research agency IHSiSuppli, the power management IC market will maintain moderate growth in the next three years, and the operating income in 2016 is expected to reach 38.7 billion US dollars. Consumer electronics, network communications, and mobile Internet are currently the most important application markets, and automotive electronics, new energy, and other fields have also begun to gradually develop.

As an excellent manufacturer of power devices in China, Yang Yong, a senior application engineer of Wenxian Microelectronics, accepted this exclusive interview on power management ICs. Engineer Yang Yong will introduce the power management IC from the following aspects:

At present, the characteristics of power management IC

At this stage, outstanding power management ICs have the advantages of high conversion efficiency, extremely low standby power consumption, good EMI performance, comprehensive protection functions, high stability and reliability, etc.

Technical advantages of the latest power management IC

The frequency shaking technology will be used to reduce EMI, and the frequency reduction curve and soft drive function will be optimized. Under full load, the frequency shaking range can still be maintained within a sufficient range, the efficiency of each point reaches the highest value, and the stress of the switch tube reaches the minimum.

How to reduce the power consumption of power management IC

First, let the chip have extremely low starting current and working current;

Second, through the low-power feedback circuit, the chip achieves a good balance between standby power consumption and dynamic response, and the chip has extremely low standby power consumption while maintaining good dynamic response.

Power management IC life guarantee

Wenxian's power management IC has comprehensive self-recovery protection functions, including cycle-by-cycle current limit protection (OCP), VCC overvoltage clamping protection, low voltage shutdown function (UVLO), overload protection (OLP), OTP, OVP shutdown Latch off, gate drive output voltage clamping (12V), built-in soft start, etc. to protect the IC. Optimized soft start technology and soft drive technology greatly reduce the voltage\current stress of power components and prolong life; extremely low chip power consumption avoids the rise of chip temperature; advanced Taiwan manufacturing process, comprehensive wafer mid-test and Finished product testing, advanced packaging and testing processes all guarantee the stability and reliability of the chip and prolong the service life of the chip.

Problems encountered in the development of power management ICs

Modern electronic systems are developing towards high speed, high gain, high integration, and high reliability. This requires the size of ICs to be smaller and smaller, and the functional requirements of pins are also increasing. This requires optimized design and higher This will be a big challenge. In addition, domestic manufacturers are vulnerable to rejection by customers and need to improve in brand promotion and innovation.

  Future trends

With the development of consumer electronics products, there are higher requirements for power management ICs. High-performance all-digital control ICs are the development trend in the field of intelligent power management. Mr. Yang Yong believes that analog power management ICs still have digital power Management incomparable advantages. Mr. Yang Yong also said that the power management unit (PMU) is the company's current focus of investment. For other emerging application areas, the company has also made corresponding plans and started to take action.