Melexis introduces high-precision current sensors optimized for affordable electric vehicles

     Melexis announces the MLX 91211 Hall Effect current sensor IC. The product is available in two versions with different features and performance options to meet the needs of cost-sensitive applications. Such applications include belt driven starter generators, traction inverters for low-speed vehicles and electric scooters, as well as industrial applications such as electric forklifts and pallet trucks.

     This non-invasive sensor IC combines with a ferromagnetic core to generate an analog output proportional to the current in the cable or current bus. The output signal bandwidth is 40kHz, and the sensor IC has a step response time of less than 10µs.

     The MLX 91211 LUA-ABT is factory calibrated at three temperature points for higher accuracy for more demanding motor control use cases. The lowest priced version, the MLX 91211 LUA-ABA, is suitable for applications with lower bandwidth and accuracy requirements.

     "This proven hybrid and electric drive architecture can be applied to cost-effective electric vehicle traction solutions, such as two - and three-wheeled e-bikes, e-scooters and low-speed electric vehicles, as well as 12V/48V starter generator applications on entry-level passenger vehicles." Bruno Boury, Melexis Current Sensor IC product line Manager, said, "Our MLX 91211 sensor IC has the high accuracy (thermal sensitivity drift less than 1.5%) required for an outstanding driving experience, is functional and affordable. Helps designers create modules at competitive prices. To date, the ferromagnetic core concentration technology remains the most reliable and mature non-contact current sensing technology."