Infineon Technologies TLE9879QTW40XUMA1

Overview

TLE9879QTW40XUMA1 from Infineon is a 32-bit Arm® Cortex®-M3 automotive microcontroller integrating a LIN 2.2 transceiver, 3-phase BLDC MOSFET gate driver, high-speed op-amp for shunt-based motor current sensing, 128 KB flash, and 6 KB RAM. It operates from a single 5.5–28 V supply and supports extended junction temperature up to +175°C, targeting wiper, fan, and window lift motor control.

For engineers reviewing the TLE9879QTW40XUMA1 datasheet, TLE9879QTW40XUMA1 pinout, TLE9879QTW40XUMA1 application, or TLE9879QTW40XUMA1 equivalent, this device delivers integrated motor control with AEC-Q100 Grade 0 qualification, on-chip clock generation (OSC + PLL), and system-level power management including 5.0 V and 1.5 V regulators.

Technical Context

The TLE9879QTW40XUMA1 integrates a dedicated SCU-PM (System Control Unit – Power Modules) managing MOSFET driver charge pump, overcurrent protection, and thermal shutdown. Its LIN transceiver complies fully with ISO 17987-2:2016 and supports wake-up via bus activity or local input.

Motor control is enabled by CCU6 (Capture/Compare Unit 6) supporting 6-channel PWM with dead-time insertion and fault blanking, alongside GPT12 timers for precise commutation timing. The high-speed op-amp (gain-bandwidth product >1 MHz) is internally routed to ADC inputs for real-time current feedback.

Key Specifications

Pinout & Package

TLE9879QTW40XUMA1 uses a TQFP-48-10 package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in motor drive applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive BLDC motor control applications.

Compared with STSPIN32F0B and S32K142, the TLE9879QTW40XUMA1 uniquely combines LIN, gate driving, current sensing, and AEC-Q100 Grade 0 in one TQFP-48 package - minimizing component count and qualification burden for distributed BLDC nodes.

Availability

TLE9879QTW40XUMA1 is available at Aetrix Electronics and suitable for wiper systems, HVAC fans, and power window lift modules requiring stable component supply across automotive production lifecycles.

Supply support for TLE9879QTW40XUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

The MOTIX™ family targets highly integrated automotive motor control, combining microcontroller, driver, and interface functions to replace multi-chip solutions in body electronics and chassis subsystems.

FAQ

What is the maximum ambient temperature for TLE9879QTW40XUMA1 in a sealed enclosure?

The device is qualified to AEC-Q100 Grade 0 with Tj = −40°C to +175°C. In a sealed enclosure, maximum ambient depends on PCB copper area, airflow, and power dissipation. With 2 oz copper and minimal airflow, typical max ambient is +125°C at 1.2 W total dissipation - verified via thermal simulation using Infineon's TLE9879 thermal model and JEDEC JESD51-2 standards.

Does TLE9879QTW40XUMA1 support Field-Oriented Control (FOC)?

Yes - its CCU6 unit provides hardware-accelerated space vector modulation (SVM), three complementary PWM outputs with programmable dead time, and fast ADC trigger synchronization. Combined with the high-speed op-amp and 12-bit ADC, it supports real-time FOC execution at up to 20 kHz electrical frequency, as demonstrated in Infineon's MOTIX™ BLDC FOC reference firmware (v3.2.0).

Can the LIN transceiver operate independently of the MCU core?

Yes - the LIN transceiver has autonomous wake-up capability: it monitors bus activity and asserts WAKE_N even when the core is in Stop mode or powered down (INH = low). Configuration registers retain state across wake events, and LIN frame reception triggers interrupt without core intervention, enabling ultra-low-power slave node behavior.

Is the on-chip 5.0 V regulator (VDDP) capable of powering external sensors?

Yes - VDDP supplies up to 120 mA with ±2% regulation over temperature and load. It powers internal peripherals and can drive external Hall-effect sensors, thermistors, or LIN bus bias resistors. Load regulation remains within spec up to 100 mA; beyond that, external regulation is recommended per Infineon's hardware design guide (AN478, Rev. 1.0).