Infineon Technologies TLE98792QXA40XUMA1

Overview

TLE98792QXA40XUMA1 from Infineon is an automotive-qualified Arm® Cortex®-M3 microcontroller integrating a 6-phase MOSFET gate driver, LIN 2.2 transceiver, dual 14-bit sigma-delta ADCs, and high-speed op-amp for shunt-based motor current sensing - designed for single-supply BLDC motor control in 12 V/24 V systems with operating junction temperature up to +150°C.

For engineers reviewing the TLE98792QXA40XUMA1 datasheet, TLE98792QXA40XUMA1 pinout, TLE98792QXA40XUMA1 application, or TLE98792QXA40XUMA1 equivalent, key selection criteria include integrated B6-bridge driver capability, on-chip charge pump, LIN physical layer compliance, sigma-delta ADC resolution and sampling rate, and AEC-Q100 Grade 0 qualification for under-hood deployment.

Technical Context

The TLE98792QXA40XUMA1 implements a tightly coupled motor control subsystem: its CCU6 unit delivers precise 6-channel PWM generation with dead-time insertion and fault protection, while two differential sigma-delta ADCs digitize motor phase currents at up to 1 MS/s with 14-bit effective resolution and built-in digital filtering. The integrated charge pump enables full N-channel B6-bridge operation from a single 5.5–28 V supply without external high-side drivers.

Its system architecture includes dedicated hardware blocks for real-time motor commutation - including BEMF comparators, analog signal conditioning paths for shunt amplification, and LIN 2.2-compliant transceiver with wake-up detection - all synchronized via a PLL-stabilized clock derived from an internal oscillator, eliminating need for external crystal.

Key Specifications

Pinout & Package

VQFN-48-79 package (7 mm × 7 mm, 0.4 mm pitch, exposed thermal pad), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN32F0B and DRV3205-Q1, the TLE98792QXA40XUMA1 uniquely combines AEC-Q100 Grade 0 MCU, LIN PHY, sigma-delta ADCs, and B6 gate driver in one VQFN-48 package - reducing bill-of-materials count by ≥7 components and enabling single-chip ASIL-B–capable motor control.

Availability

TLE98792QXA40XUMA1 is available at Aetrix Electronics and suitable for electric power steering, engine cooling fans, radiator fan clutches, and HVAC blower motors requiring stable component supply across automotive production lifecycles.

Supply support for TLE98792QXA40XUMA1 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 electronics, and industrial control ICs, with global manufacturing and quality certification to IATF 16949.

The MOTIX™ family targets automotive electrification, delivering highly integrated motor control SoCs that consolidate MCU, gate drivers, analog sensing, and communication interfaces into single-package solutions for BLDC and PMSM applications.

FAQ

What is the maximum motor phase current supported by the integrated gate driver?

The TLE98792QXA40XUMA1's gate driver is rated for continuous 1 A peak source/sink current per channel, supporting MOSFETs with gate charges up to 50 nC. Actual motor current capability depends on external MOSFET selection, PCB thermal design, and ambient temperature - typical validated use cases deliver up to 30 A RMS phase current with appropriate heatsinking and layout.

Does the device support sensorless commutation out of the box?

Yes - the TLE98792QXA40XUMA1 includes dedicated BEMF comparators, analog signal routing, and CCU6 timer hardware optimized for sensorless six-step and FOC commutation. Infineon provides validated motor control firmware libraries (MOTIX™ BLDC SDK) with startup algorithms, observer-based position estimation, and LIN-configurable parameters.

Can the sigma-delta ADCs be used simultaneously with full resolution?

Both ADC3 and ADC4 operate independently and can sample concurrently at 14-bit resolution. When oversampled at 64×, they achieve effective 16-bit resolution at 15.6 kSPS; at base 1 MS/s modulator rate, decimation yields 14-bit data at 15.6 kSPS per channel with guaranteed timing correlation for multi-phase current reconstruction.

Is the LIN transceiver compliant with LIN SAE J2602 and ISO 17987-4?

Yes - the integrated LIN transceiver meets SAE J2602 Class B and ISO 17987-4:2016 physical layer requirements, including bus fault tolerance (±40 V), slew rate control, dominant timeout, and wake-up pulse detection per LIN specification. It supports auto-baud rate detection and slave node response time compliance.