Melexis has released its next-generation automotive IC family for sensor-less and sensor based BLDC motor control.
The IC family consists of four devices: the MLX81205, MLX81207, MLX81210 and MLX81215, all of which are based on Melexis’ MLX81200 core integration design concept. The driver ICs combine voltage regulator, LIN -Transceiver, MCU, EEPROM, Flash, RAM, Power FET Pre-Driver and several dedicated circuit blocks for highly efficient BLDC motor control.
Each is available in different memory configurations and in different package options. The IC family is 45V load dump protected and will be qualified according AEC-Q100 Grade 0 for high temperature automotive application support.
Similar to MLX81200, the new IC family supports the Melexis patented TruSense sensor-less driving algorithms in HW and SW for starting and driving BLDC motors in different constructions in a reliable way under unknown load conditions for a high dynamic range in speed. Different current wave form profiles (block, trapezoidal, sinusoidal) can be applied for optimal and energy efficient motor performance.
Melexis’ latest driver line employs slope control on power transistor switching, allowing customers to optimize in software the EMC behavior, as well as thermal dissipation of the power transistors during the switching process.
The IC family targets permanent running BLDC motors typically found in various automotive applications. Examples include fuel pumps, water pumps, oil pumps, engine cooling fans, HVAC blowers and battery cooling fans.
The MLX81205/07/10/15 are single die per package products, helping to reduce bill of materials costs.
The first family member, the MLX81215 in QFN48 7x7 with software development setups, is available for alpha customers. Next family members and a general availability for developments at customers are planned to be ready in the next months.