Recently, the rebound of the A-share semiconductor sector has attracted attention. On April 11, with the relevant regulations of the General Administration of Customs on the "identification of tape-out as the place of origin", local chip companies once again became the focus of market attention, and the Wind semiconductor index rose by 4.48% on the same day. Among them, the domestic analog chip company Diao Micro (688381. SH) rose by more than 15% on the day, and the closing gain was at the forefront of the sector. With long-term accumulation in the field of signal chain and power management, the company is currently continuing to expand the market space of automotive-grade chips and inject stable momentum into domestic substitution.

As a technology-based enterprise in the field of analog chips, Diao Micro has continued to promote the upgrading of its product system in recent years, and has actively laid out the automotive chip track while maintaining the steady growth of traditional advantageous application scenarios such as consumer electronics and industrial control. At present, the company has established an automotive-grade chip product system with on-board signal acquisition, power management, LED lamp control, motor drive, current detection, high-side drive, Hall sensing, etc. as the core, and has the application delivery capability for mainstream OEMs and Tier1 customers.

Different from consumer-grade chips, automotive chips put forward higher standards in terms of product performance, safety and stability, and supply continuity. At present, the company has launched a variety of products around the automotive field, including automotive-grade four-switch synchronous step-up and boost LED controllers, automotive-grade multi-topology headlamp controllers, 12/24-channel through-type taillight controllers, 350mA ultra-low-power linear automotive voltage regulators, 24V, 6A high-efficiency synchronous step-down converters, and 5V precision adjustable current load switches and other products used in the field of consumer electronics. The company's power supply, motor drive, lamp drive, high-side drive and other products have been mass-produced in a number of terminal automobile manufacturers, international and domestic head Tier1, and gradually achieved the goal of expanding market share.

From the perspective of import substitution, the company has launched a number of blockbuster products in the field of automotive electronics, filling the domestic gap in multiple subdivisions. For example, the DIA2240 series has a common-mode voltage range of -4 to 110V to meet the needs of current monitoring in high-voltage scenarios. DIA57100 is the first single-wafer 15A H-bridge DC motor driver chip in China, which is dedicated to body control systems; The DIA58104/58108 series is a 4/8-channel automotive-grade pre-drive solution that improves system integration and reliability. DIA82664 is the first 16-channel matrix control manager in China with ASIL B functional safety level, integrated oscillator and EEPROM. In addition, the company also released the first domestic I3C hub series products that support I3C bus, covering DIMM module management, intelligent sensor networks and other scenarios, providing a package of signal chain solutions for artificial intelligence servers and robotics applications.

As a deep cultivator in the field of signal chain and power management, Diao Micro is consolidating its advantages and moving forward steadily in this round of industrial upgrading through its continuous accumulation of product capabilities and customer adaptation experience. In the future, with the continuous expansion of the company in the direction of vehicle regulation, industrial control, new energy and other directions, the product structure will be further optimized, and the growth momentum is also expected to continue to be released to achieve industrial breakthroughs.