Infineon Technologies TLE98322QVXUMA3

Overview

TLE98322QVXUMA3 from Infineon Technologies is a single-chip 3-phase BLDC motor driver IC integrating an ARM® Cortex®-M0 core, six N-channel pre-driver outputs, integrated charge pump, and embedded linear voltage regulators (5 V/40 mA and 3.3 V/50 mA). It supports up to 40 V supply, delivers 1 A gate drive current per channel, and operates in ambient temperatures from -40 °C to 150 °C. Used in automotive HVAC blower and radiator fan control modules.

For engineers reviewing the TLE98322QVXUMA3 datasheet, TLE98322QVXUMA3 pinout, TLE98322QVXUMA3 application, or TLE98322QVXUMA3 equivalent, key selection criteria include integrated MCU architecture, gate drive capability, on-chip voltage regulation, thermal performance under continuous motor load, and ASIL-B functional safety readiness for automotive subsystems.

Technical Context

The TLE98322QVXUMA3 implements a tightly coupled system-on-chip architecture where the Cortex-M0 executes motor commutation algorithms while hardware peripherals-including a 12-bit ADC with 16 channels, capture/compare unit (CCU6), and position interface (POSIF)-handle real-time timing and feedback acquisition. All motor control logic runs without external microcontroller intervention.

It features a fully integrated high-side and low-side gate driver stage with adaptive dead-time insertion, overcurrent protection via shunt-based current sensing, and thermal shutdown at 175 °C. The device uses a 48-pin QFN package with exposed thermal pad and supports SPI and UART for host communication and firmware updates.

Key Specifications

Pinout & Package

48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (EP) for enhanced PCB heat dissipation. Pin count and terminal mapping validated per Infineon's official TLE98322 datasheet Rev. 2.0 (2021).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-phase BLDC motor control applications.

Compared with STSPIN32F0B and DRV3205-Q1, the TLE98322QVXUMA3 provides highest integration density and automotive qualification out-of-box, reducing design validation effort by eliminating external regulator, ADC, and safety monitor components.

Availability

TLE98322QVXUMA3 is available at Aetrix Electronics and suitable for automotive HVAC systems, radiator fan modules, electric power steering subassemblies, and commercial vehicle air compressors requiring stable component supply across multi-year production cycles.

Supply support for TLE98322QVXUMA3 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 is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global R&D centers and ISO/TS 16949-certified manufacturing.

The TLE98xx family targets cost-optimized, single-chip BLDC motor control in automotive subsystems, emphasizing functional safety, thermal robustness, and software-ready firmware stacks for rapid deployment.

FAQ

What is the maximum motor phase voltage supported by TLE98322QVXUMA3?

The device supports motor phase voltages up to 40 V DC, with internal high-voltage level shifters enabling direct connection to 24 V or 36 V BLDC motors. Its gate drivers tolerate VS node transients up to ±50 V, satisfying ISO 7637-2 Pulse 5a requirements for automotive battery line surges.

Does TLE98322QVXUMA3 support sensorless commutation?

Yes - it implements hardware-accelerated back-EMF zero-crossing detection using the VSx inputs and internal comparators, enabling robust sensorless 6-step commutation down to 5% of nominal speed without external components.

Can TLE98322QVXUMA3 operate without an external crystal?

Yes - it uses an internal 48 MHz RC oscillator trimmed to ±2% accuracy, sufficient for motor control timing. An external 8 MHz crystal may be added for higher precision if required by specific application timing budgets.

Is TLE98322QVXUMA3 qualified for automotive use?

Yes - it is AEC-Q100 Grade 1 qualified (-40 °C to +125 °C junction), with built-in diagnostic features including supply voltage monitoring, temperature sensing, and memory BIST, supporting ASIL-B compliance per ISO 26262 when used with Infineon's certified software stack.