Infineon Technologies TLE9844QXXUMA2

Overview

TLE9844QXXUMA2 from Infineon Technologies is a 32-bit Arm® Cortex®-M0 automotive microcontroller integrating LIN transceiver, one high-side and two low-side power switches, 64 KB flash (with emulated 4 KB EEPROM), 4 KB RAM, and dual ADC subsystems (8-bit ×7, 10-bit ×13). It operates from 3.0 V to 28 V supply and supports cyclic wake-up, stop mode with sense, and LIN bootstrap loader - designed for window lift control in passenger vehicles.

For engineers reviewing the TLE9844QXXUMA2 datasheet, TLE9844QXXUMA2 pinout, TLE9844QXXUMA2 application, or TLE9844QXXUMA2 equivalent, this page delivers verified technical context, validated pin functions, automotive-grade power switch timing behavior, LIN physical layer compliance, and AEC-Q100-qualified thermal and voltage operating margins.

Technical Context

The TLE9844QXXUMA2 implements a tightly integrated system-on-chip architecture where the Arm Cortex-M0 core (25 MHz max) directly controls three on-die power switches via dedicated SCU-PM registers and CCU6 PWM timers. Its dual ADC subsystem includes dedicated HV MON inputs for motor phase monitoring and battery sense channels with internal calibration.

Power management combines a 5.0 V VDDP regulator (for core logic), 1.5 V VDDC regulator (for CPU), and external 5.0 V VDDEXT supply for Hall sensors - all managed by a PMU supporting four low-power modes with configurable wake-up sources including LIN frame detection and cyclic sense triggers.

Key Specifications

Pinout & Package

VQFN-48-31 package (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed die pad for automotive thermal dissipation requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE9844QXXUMA2, TLE9854QX adds CAN FD and flash capacity at the cost of higher unit price and different thermal pad geometry, while MC9S12VR64 increases system-level component count and fails to meet modern thermal and integration benchmarks for new window lift designs.

Availability

TLE9844QXXUMA2 is available at Aetrix Electronics and suitable for window lift control, seat position adjustment, roof panel actuation, and trunk lid motor control requiring stable component supply across automotive production lifecycles.

Supply support for TLE9844QXXUMA2 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 microcontrollers, and sensor solutions, with global R&D and wafer fabrication infrastructure.

The MOTIX™ TLE9844QX product line targets cost-optimized, single-chip automotive body electronics - specifically engineered to replace multi-component motor control subsystems in window, seat, and sunroof modules.

FAQ

What LIN protocol versions does TLE9844QXXUMA2 support?

The device implements a fully compliant LIN 2.2A physical layer transceiver with support for LIN 2.2A frame formats, checksum models (classic and enhanced), and automatic sync field detection. It does not support LIN 2.2B or LIN 2.3 features such as configurable baud rate or slave node position detection (SNPD), as confirmed in Section 18.2 of the Rev. 1.3 datasheet.

Can TLE9844QXXUMA2 drive a 24 V DC motor directly?

Yes - its integrated high-side switch supports up to 42 V transient voltage and 1.5 A continuous current, and low-side switches handle identical ratings. The device accepts 3.0–28 V supply, enabling direct operation from 24 V truck/bus systems. Thermal derating curves in Section 7.2.1 confirm safe operation at 125 °C ambient with appropriate PCB copper area.

Is the 4 KB emulated EEPROM wear-levelling certified for automotive endurance?

Yes - the emulated EEPROM uses Infineon's proprietary wear-leveling algorithm validated for ≥100,000 write/erase cycles at −40 °C to +125 °C, meeting AEC-Q100 stress test condition A11 (data retention) and A12 (endurance). This is documented in Section 11.2.3 of the datasheet and supported by production test reports.

Does TLE9844QXXUMA2 require an external crystal for accurate LIN timing?

No - the device includes an integrated high-precision oscillator (OSC_HP) with ±1.5% frequency stability over temperature and voltage, sufficient for LIN baud rate accuracy (±1.5% tolerance per LIN spec). External crystals are optional for higher precision; the default internal OSC_HP eliminates BOM cost and board space for crystal and load capacitors.