48KB memory in a compact QFN24 (4mm x 4mm) package to cost-effectively drive relay DC motor applications.
Melexis' new LIN pre-driver IC for relay DC motors offers a combination of high power, compactness and attractive price. The MLX81160 is the latest addition to the company's Gen3 family of compatible embedded motor controllers. With its 48 KB memory (16 KB ROM for the included LIN protocol and 32 KB Flash for the application software) it is suitable for applications such as window lifters.
Strengthening its position in motor control for automotive comfort applications, Melexis has just introduced the MLX81160. Leveraging high-voltage silicon-on-insulator (SOI) technology, this LIN-based pre-driver features high operational robustness for 12 and 24V applications.
This device is the successor to the company's widely deployed LIN MLX81150 slave device for controlling DC motors and relays. Key usage is window lifters and sunroof drives with relay DC motors, as well as small DC motor applications with external PN-MOSFET power regulation.
The MLX81160, which is AEC-Q100 certified, incorporates all the essential functional elements for motor control on a single chip. Among them are a LIN interface, an embedded microcontroller unit, 6 PWM controllers, 3 high-voltage I/Os, and much more. Additional I/Os allow a dedicated 4-wire latch to be connected for motor synchronization. Melexis will be launching a new 4-wire latch soon: the innovative features of the MLX92352 will provide maximum flexibility. Together with the MLX81160 it is a complete Sense & Drive solution.
The MLX81160 is embedded in a compact 24mm x 4mm QFN4 package. Fits on the smallest printed circuit board when used for state-of-the-art mechatronics.
In addition to enabling performance improvements and lower costs, and having the smallest footprint, the MLX81160 has other important benefits. These include faster programming (with a 32KB Flash completed in <2,5 seconds) and ASIL B functional safety capabilities. In addition, the dual current sensing feature enables ripple counting and ripple actuation. multiple DC motors.
“The price and performance characteristics of the MLX81160 enable our top-tier customers to develop competitive mechatronic systems for their automotive manufacturing partners. It brings the benefits of the digital interface to price-sensitive DC motors such as mid-range window regulators.” Marc Lambrechts, Melexis Embedded Motor Driver Product Line Manager, explains, “Our team of experienced embedded application engineers are available to implement the right first time design and speed project completion.”
