What the TLE9867QXW20XUMA1 is — automotive motor-drive SoC
The Infineon TLE9867QXW20XUMA1 is an automotive-grade system-on-chip that integrates an ARM Cortex-M3 core with a motor driver, 128 kB of program Flash, and 6K x 8 RAM, all in a single 48-VFQFN exposed-pad package (PG-VQFN-48-29).
Supply range and power-stage fit
The 5.5 V to 28 V supply range directly mates to automotive battery rails without an external pre-regulator. It rides through cold-crank dips down to 5.5 V and handles load-dump transients up to 28 V, which cuts the BOM by one or two LDOs and the associated passives.
Interfaces and I/O for a LIN slave node
The TLE9867QXW20XUMA1 carries LIN, SSI, and UART interfaces alongside 10 general-purpose I/O. The LIN transceiver is integrated, so the external BOM for a LIN slave is just the bus pin filter and a few passives. The SSI port can read a magnetic angle sensor directly for brushless DC motor commutation feedback.
Temperature grade and automotive qualification
The 175°C junction rating provides margin for self-heating in the integrated driver stage.