Tuesday, February 27, 2024

Highly Integrated SoC To Add In-Cab Wireless Charging to Vehicles

By Sharad Bhowmick

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The iND87200 SoC from indie Semiconductor supports Qi 2.0 standards, offering faster and more reliable charging by automatically aligning smartphones with the charging coil.

indie Semiconductor has launched the iND87200, an integrated automotive wireless power charging system-on-chip (SoC) that offers a high level of integration. The iND87200 simplifies the development of cost-effective in-cabin portable device charging designs based on the Wireless Power Consortium (WPC) Qi standard. The SoC supports the emerging Qi 2.0 standard, including the Magnetic Power Profile (MPP), which offers faster and more reliable charging by automatically aligning smartphones with the charging coil. The iND87200 features a dual-core design with an Arm Cortex M4F processor and an Arm Cortex M0 processor for the WPC stack. It integrates power management, DC-DC converters, signal conditioning, and other necessary components, reducing system complexity and improving reliability. The SoC is fully qualified to the AEC-Q100 Grade 2 automotive standard. The iND87200 SoC is suitable for use in both feature-rich cars to entry-level vehicles.

In-cabin charging has become essential for drivers and passengers who rely on smartphones for navigation, music, and other services while on the move. The global market for in-car automotive wireless chargers is estimated to reach $1.3 billion in 2022 and is projected to grow to $9.5 billion by 2032, with a 22% compound annual growth rate (CAGR) over that period. The emerging Qi 2.0 standard, featuring the Magnetic Power Profile (MPP), is particularly relevant to automotive designs as it offers faster and more reliable charging by automatically aligning smartphones with an inductive charging coil, regardless of vehicle motion. The company claims that the iND87200 SoC from indie Semiconductor delivers industry-leading levels of integration, reducing the external bill-of-materials by almost half compared to existing discrete implementations. This turn-key architecture significantly reduces system complexity, improves overall reliability, and helps automotive OEMs bring faster, cost-effective, and more reliable portable device charging to market.

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According to the company, the iND87200 SoC features a dual-core design that combines an Arm Cortex M4F processor with 2MB of embedded Flash and 256kB of SRAM, along with a dedicated Arm Cortex M0 processor for the WPC stack. This design allows the SoC compute resources to be utilized for user-specific software without being constrained by timing and interrupt requirements related to the WPC stack. The wireless charging solution integrates all the necessary components, including power management, DC-DC converters, signal conditioning, WPC inverter drivers, power FETs, LED and fan drivers. It also offers a range of serial interfaces such as CAN 2.0B, LIN, I2C, and UARTs for connectivity with the vehicle and other peripherals.

indie Semiconductor is an American company headquartered in Aliso Viejo, CA. The company develops high-performance and energy-efficient technology for ADAS, user experience and electrification applications. indie’s mixed-signal SoCs enable edge sensors spanning Radar, LiDAR, Ultrasound, and Computer Vision, while the embedded system control, power management and interfacing solutions transform the in-cabin experience and accelerate increasingly automated and electrified vehicles. The latest offering from indie, the iND87200 SoC is fully qualified to the AEC-Q100 Grade 2 automotive standard and is now in production and sampling to customers. indie Semiconductor is also providing advanced application-oriented reference designs to further accelerate customer development and deployment processes.

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