Automotive Electronics

Melexis has launched an IC with 21 LED drivers that can power and dim up to 3,000 LEDs. Called MLX81143, it implements CAN-over-UART to control individual LEDs, and the company claims it provides real-time compensation of colour drift caused by environmental changes, and colour-mixing accuracy of less than 1%. The product flyer promises “real-time update of >800 RGB LEDs without ...

GaN Systems has got its GS61008P 100V enhancement mode GaN-on-silicon power transistor designed into a 48V – 12V bidirectional dc-dc converter for mild hybrid vehicles and electric motorcycles. The example design, from Renesas, takes up 46% less PCB area than an earlier all-silicon version, said GaN Systems, due  in part to switching at 500kHz which allowed a move to smaller ...

Fluke is simulating an electric vehicle attached to a charging station with its latest tester. Called the FEV300, it allows the output of a Mode 3 ac charger with connector types 1 and 2 to be tested in accordance with IEC/HD 60364-7-722 and IEC/EN 61851-1. The stations provide a one or three phase supply at 230 or 400V. Mode 3 ...

TDK has introduced quarter brick isolated 50W dc-dc converters with a 12:1 input range: 14 to 160Vdc There are also similar 75W converters, this time with a 9-75Vdc (8:1) input range, Quarter brick converters (left hand in image), with smaller 20W parts as well as larger 200W parts in the pipeline (see below).  Called PYQ50, there are three 50W quarter ...

Intel has filed with the US SEC to list its ADAS unit, Mobileye, on the Nasdaq exchange. Intel will keep control of the unit by retaining class B shares that have 10 votes each and selling class A shares that have one vote each. It is not disclosed how large the offering will be. Mobileye has issued Intel with a ...

Diodes has used post-package trimming to hone a 25μV maximum offset 9.5nV√Hz (1kHz) noise dual op amp with 5.5MHz bandwidth. Called AS2376Q, the device is intended for filtering and control, particularly in automotive applications – it is qualified AEC-Q100 Grade 1 and has automotive-grade supporting PPAPs. Both input and output are rail-to-rail, and operation is over 2.2 to 5.5V (950μA ...

Onsemi has announced three silicon carbide power modules for 800V 11 – 22kW on-board charging and high-voltage dc-dc converiosn in electric vehicles  – all in transfer moulded packaging, claimed to be a first. “Our modules employ the latest SiC technology to minimise losses and overall system volume, allowing designers to meet charging efficiency and space goals,”, claimed Onsemi general manager ...

The automotive IC matketshare will be 10% by 2026, says IC Insights, posting average annual growth of 13.4% from 2021-26. The communications and computer segments will remain the largest applications. Figure 1 shows that the automotive IC marketshare has steadily increased since 1998 growing from 4.7% of total IC sales that year to 7.4% in 2021. Marketshare gains are forecast ...

STMicroelectronics has used the ‘CAN FD Light’ protocol in a 32-channel automotive lighting controller. “With 32 regulated current sources, independently programmable from 1mA to 15mA, L99LDLH32 can drive individual pixels in external and interior lighting applications. Global dimming is also provided, with 8-bit resolution,” according to the company, whose data sheet said that it is particularly aimed at external rear ...

Rohm has developed a buck dc-dc converter for driver assistance (ADAS) and automotive infotainment systems. BD9S402MUF-C operates at 2MHz and can deliver 4A at outputs down to 0.6V. Load response is fast: “The ability to suppress voltage output variation within 5% even at output voltages below 1.0V makes it ideal for secondary power supplies for the latest ADAS”, according to ...