Shandong Mingxing Integrated Circuit Design and Development Co., Ltd. is a joint venture company established by Shandong Jingtaixing Optoelectronics Technology Co., Ltd. and Shanghai Letos Electronic Technology Co., Ltd., established in 2015.
The company uses internationally advanced technology and equipment to develop, produce and sell integrated circuits.
Completed design introduction:
1. LA5103. The LED load can be flexibly set to series or parallel according to application requirements. The operating current of a single channel can reach 70mA, and the maximum power in parallel can support 25W. It is the most powerful constant current linear driver chip on the market. The system power factor PF value can still reach above 0.7. With few external components, LA5103D can automatically adjust the configuration; light strings 1 and 2 work in parallel under low voltage, and switch to series work when high voltage is input, thereby improving the utilization efficiency of LED lamp beads.
2. LA5831. LA5831 is a high-precision non-isolated step-down LED controller, suitable for low-power non-isolated step-down LED lighting applications with a full voltage range of 85V to 265V. LA5831 can make the circuit reach a constant current accuracy within ±3%, and can realize the output current self-adaptation to the inductance and output voltage. The superior performance of LA5831 can make the system peripheral structure very simple, which can greatly save the system cost and volume. LA5831 also has rich protection functions: output open and short circuit protection, sampling resistor open and short circuit protection, under voltage protection, output over voltage protection, over temperature adaptive adjustment, etc.
3. LA5105. LA5105 is a driver series with excellent comprehensive performance that inherits temperature compensation, voltage compensation and dimming. It is the first linear drive with voltage compensation function on the market. When the input voltage exceeds the standard, it automatically adjusts the current to maintain the system constant power, thereby protecting the chip from overload and overheating. Support PWM and voltage analog dimming function. The built-in power supply with 8v can be easily applied to support intelligent control of LED lamps.
4. LA5501. LA5501 is a single-stage, high-precision LED constant current control chip with source power factor correction, supports thyristor dimming, and high-performance integrated floating buck driver. It has the advantages of supporting dimming and high efficiency.
5. QFN package. Using Ming Hing integrated circuit chip technology and Jingtaixing's packaging technology for the development of QFN packaging, this technology can achieve true single-chip drive and get rid of complex multi-chip technology. The high-performance package increases the heat dissipation efficiency by 3-5 times, thereby effectively improving the efficiency and reducing the cost. Our company is the first company in China to conduct research and development on QFN packaging and is in a leading position in the industry.
We have advanced technology and equipment, high-quality talents, and firmly believe that market-oriented, innovation-driven, quality for survival, development for growth, we will definitely win a better tomorrow.