Infineon Technologies TLE987x 3-Phase Motor/Relay Driver ICs

Infineon TLE987x 3-Phase Motor/Relay Driver ICs are automotive-qualified System-on-Chip (SoC) devices specifically designed to provide space-efficient solutions for mechatronic BLDC motor-drive applications, including field-oriented control. These single-chip devices integrate the industry-standard ARM® Cortex®-M3 core to enable the implementation of advanced motor-control algorithms. The TLE987x devices also feature six fully integrated NFET drivers optimized to drive a 3-phase motor using six external power NFETs. A charge pump enables low-voltage operation. TLE987x’s programmable current, along with current-slope control, optimize EMC performance. The peripheral set includes a current sensor, a successive approximation ADC synchronized with the capture and compare unit for PWM control, and 16-bit timers. An integrated LIN transceiver allows communication to the device along with a number of general-purpose I/Os.

Offered as part of the Infineon® Embedded Power IC portfolio, the TLE987x offers Flash memory and MCU system clock frequency scalability. This scalability allows the TLE987x devices to support a wide range of sensor-based or sensor-less motor control algorithms. The TLE987x 3-Phase Motor Drivers share the same MCU and peripherals as the TLE986x 2-Phase Motor Drivers to offer design synergy between DC and BLDC motor-control applications. TLE987x is a highly integrated automotive (grade-1 & grade-0) qualified device enabling cost and space-efficient solutions for mechatronic BLDC motor drive applications such as pumps and fans.

Key Benefits

Enable cost and board space improvements – Infineon's system-on-chip solution integrates data processing, actuation, and sensing. The chip comes in a leadless VQFN package with 7mm x 7mm footprint and enables PCB space saving. The TLE987x family allows driving MOSFETS at VBATT ≥ 6V without external components, providing a very cost-effective solution on a system level.
Enabling high levels of system reliability – Extensive diagnostics and protections are embedded within the system-on-chip, more than a discrete approach can offer. In addition, both the Embedded Power IC and the external MOFESTS can be protected.
Support multiple and flexible designs with minimal effort – All TLE986x and TLE987x devices are pin and software compatible, maximizing a single design through scalability.

Features

Arm® Cortex®-M3 MCU
System clock up to 40MHz
Up to 128kB Flash memory
4K EEPROM emulation
NFET drivers with charge pump
Current programmable NFET driver with patented slope control for optimized EMC behavior
Integrated LIN transceiver compatible with LIN standard 2.2 and SAE J2602 - supports fast programming via LIN