Infineon Technologies TLE9872QXA40XUMA1

Overview

TLE9872QXA40XUMA1 from Infineon is an automotive-qualified 32-bit Arm® Cortex®-M3 microcontroller integrating a 3-phase BLDC MOSFET driver, LIN 2.2 transceiver, and high-speed op-amp for shunt-based motor current sensing. It operates from a single 5.5–28 V supply, features 256 KB flash and 8 KB RAM, and supports junction temperatures from –40°C to +150°C. Designed for compact motor control in constrained automotive body electronics.

For engineers reviewing the TLE9872QXA40XUMA1 datasheet, TLE9872QXA40XUMA1 pinout, TLE9872QXA40XUMA1 application, or TLE9872QXA40XUMA1 equivalent, this device delivers integrated power stage control, on-chip clock generation (OSC + PLL), and system-level safety features required for AEC-Q100-compliant wiper, fan, and window lift modules.

Technical Context

The TLE9872QXA40XUMA1 integrates a dedicated SCU-PM (System Control Unit – Power Modules) managing gate drive timing, charge pump regulation, and overcurrent protection for external N-channel MOSFETs. Its LIN 2.2 transceiver complies with ISO 17987-4 and supports wake-up via bus activity or local input.

Motor control execution relies on the CCU6 capture/compare unit with dead-time insertion, GPT12 timers for PWM synchronization, and a hardware-based current-sense amplifier feeding into the 10-bit ADC. All peripherals are clocked from a configurable PLL derived from the internal 10 MHz oscillator.

Key Specifications

Pinout & Package

VQFN-48-29 package with wettable flank leads and thermally enhanced exposed pad for PCB heat dissipation. Pin count: 48 terminals. Pitch: 0.4 mm. Body size: 7.0 mm × 7.0 mm. Thermal resistance (R_θJA): 36 K/W (JEDEC 2-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN32F0B and DRV3205-Q1, the TLE9872QXA40XUMA1 uniquely combines AEC-Q100 Grade 0 qualification, LIN 2.2 compliance, and full motor control firmware execution in one die - reducing system-level validation effort and PCB area by consolidating three functional blocks.

Availability

TLE9872QXA40XUMA1 is available at Aetrix Electronics and suitable for wiper systems, HVAC fans, and power window modules requiring stable component supply across automotive production lifecycles.

Supply support for TLE9872QXA40XUMA1 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 MCU, gate drivers, analog sensing, and communication interfaces to replace multi-chip solutions in body electronics.

FAQ

What is the maximum ambient temperature rating for TLE9872QXA40XUMA1 in a typical automotive PCB layout?

The device is qualified to AEC-Q100 Grade 0 with a junction temperature limit of +150°C. In a standard 2-layer FR4 board with 1 oz copper and 200 mm² thermal pad exposure, maximum ambient temperature is +105°C at full load. Derating curves in Section 5.2.2 of the datasheet define safe operating area based on airflow and copper area.

Does TLE9872QXA40XUMA1 support Field-Oriented Control (FOC) algorithms?

Yes - its 40 MHz Cortex-M3 core, 10-bit ADC with 1.2 µs conversion time, CCU6 with hardware vector modulation, and dual GPT12 timers provide sufficient processing bandwidth and peripheral timing precision to implement basic FOC. Reference design TLE9872_FOC_SW_V1.0 demonstrates rotor position estimation and torque loop execution at 20 kHz PWM frequency.

Can the internal op-amp be used for high-side current sensing?

No - the integrated op-amp is optimized for low-side shunt configurations with common-mode input range extending to VSS. High-side sensing requires external amplifiers or current-sense transformers due to input voltage limitations (max 5.5 V common-mode) and lack of level-shifting circuitry.

Is there hardware support for LIN bus sleep mode wake-up?

Yes - the LIN transceiver includes dedicated wake-up comparator circuitry that detects bus activity (dominant level ≥ 50 µs) or local pin assertion (WAKE pin). Wake-up event triggers internal reset and restores clock domains within 100 µs, meeting LIN specification timing requirements for slave node responsiveness.