Infineon MOTIX™ TLE989x MCU: Single-chip power IC equipped with CAN(FD) interface, more suitable for automotive/BLDC motor control

【Lansheng Technology News】Infineon’s MOTIX™ TLE989x series of microcontrollers has expanded its comprehensive and proven MOTIX™ MCU embedded power IC product portfolio and uses CAN as the communication interface.

This family offers approximately 60% more processing power than the TLE987x product family, while also boasting additional functional safety and network security features such as secure boot and key storage. These MCUs integrate the gate driver, MCU, communication interface and power supply on a single chip, occupying an extremely small board area, achieving excellent integration and system cost, and are suitable for various automotive and intelligent three-phase BLDC motor control applications.

The TLE989x's motor driver can drive three-phase motors through six external power NFETs. The MCU uses a 60MHz Arm® Cortex®-M3 core to enable advanced motor control algorithms (such as field-oriented control) and has six fully integrated NFETs. The driver is optimized to drive motors via a charge pump that supports low voltage operation. The bridge driver's safe shutdown path provides a fail-safe mechanism to shut down the motor and handle errors safely, meeting ISO26262 and ASIL-B requirements.

The devices feature programmable current and current slope control to optimize EMC performance, as well as multiple on-chip peripherals, including a current sensor, a successive approximation ADC (synchronized with the capture and compare unit for PWM control), 8/16 GPIOs, 3 BEMF comparators and 12 16-bit timers. The integrated CAN (FD) transceiver and MULTICAN+ controller support CAN (FD) protocol communication up to 2Mbps.

Infineon's MOTIX TLE989x MCUs are available in ultra-compact TQFP-48 and LQFP-64 packages and operate over the -40°C to +175°C temperature range. The evaluation board provides sockets for both packages, allowing each pin of the MCU to be connected through a row of pin headers. The board also connects to vehicle power and provides a USB port for the onboard SWD debugger.