WPG World Peace Group launches automotive headlight solution based on easy-to-charge semiconductor products

On November 14, 2024, WPG Holdings, a leading international semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary WPI has launched an automotive headlight solution based on ConvenientPower's CPSQ5453 and CPSQ5352 chips.

Figure 1- A display board of WPG's automotive headlight solution based on EasyChip semiconductor products

Driven by electrification and intelligence, every link in the automotive industry has been rejuvenated with unprecedented vitality and innovation potential. Among them, car headlights, as an important part of the whole vehicle, have not only been significantly improved in design and function, but their market size has also continued to expand with the innovation of vehicle-mounted technology, becoming a highlight of the rise of the automotive industry. In response to the changes in car lights, WPG World Peace launched a car headlight solution based on the Echo Semiconductor CPSQ5453 and CPSQ5352 chips, which can efficiently drive LED light sources and achieve precise beam control and adjustment.

Figure 2-Application scenario of WPG's automotive headlight solution based on EasyChip semiconductor products

CPSQ5453 is a dual-channel and independently operable constant voltage and constant current boost power supply controller that can realize the control of power supply topologies such as Boost and Buck-Boost, and adapt to a wide input voltage range of 4.5V to 65V. The chip has a built-in frequency jitter function to improve EMI interference. In terms of communication, the chip is equipped with an SPI communication interface, allowing users to flexibly configure the functions and parameters of the chip through SPI. In addition, CPSQ5453 adopts peak inductor current control technology and has a fast response rate. At the same time, the chip provides a variety of working modes, including normal mode and limp mode. In addition, CPSQ5453 can achieve independent operation mode by burning some OTP registers to meet customer needs for functional integrity. In low-current working scenarios, the current error compensation function of CPSQ5453 can maintain high current accuracy. In terms of safety, the chip has a complete protection mechanism, including output overvoltage protection, short-circuit protection, overcurrent protection, etc., which can ensure the stable operation and safety of the system.

CPSQ5352 is an automotive-grade dual-channel buck LED driver chip with a maximum output current of 1.6A per channel. The chip has a wide input voltage range and can operate normally between 4.5V and 65V. It supports SPI communication and the communication rate can reach above 2MHz. CPSQ5352 adopts advanced COT control pipeline design, has fast dynamic load response capability, and is particularly suitable for use with matrix headlight controllers. CPSQ5352 can maintain high-precision current control under all operating conditions. In addition, CPSQ5352 supports analog dimming and PWM dimming, and allows programmable control of output current and duty cycle and frequency of PWM dimming. Inside the chip, it is also equipped with a 10-bit high-precision ADC, allowing users to directly read key parameters.

Figure 3 Block diagram of WPG's automotive headlight solution based on EasyChip semiconductor products

E-Chong Semiconductor is a fast-growing high-performance analog and mixed-signal integrated circuit chip design company. Its products cover the full-link solution from 220V power supply to battery, which can be widely used in smart phones/wearables, personal computers, smart homes, automotive electronics and other industries. The automotive headlight solution launched by WPG World Peace is based on E-Chong Semiconductor's deep foundation in power control and drive technology. In the future, the two parties will continue to cooperate to jointly promote the development of automotive lighting technology.

Core technology advantages:

CPSQ5453:

• Supports input voltage range from 4.5V to 65V;

• Able to control various power topologies such as Boost and Buck-Boost;

• Adopt peak inductor current control technology, with faster response rate;

• It has current error compensation function in low current working scenarios to maintain high current accuracy.

CPSQ5352:

• The maximum output current of each channel can reach 1.6A;

• Maintain high current accuracy under all operating conditions, with the error controlled within 4%, suitable for a variety of LED driving applications;

• Adopt COT control mode, with faster dynamic load response speed;

• It supports analog dimming and PWM dimming, and the output current, PWM dimming duty cycle and frequency are all programmable, making it suitable for use with a matrix headlight controller.

Program Specifications:

Technical support: Demo board user manual, training documents, software development manual, Demo board, etc.