Infineon Technologies TLE9854QXWXUMA1

Overview

TLE9854QXWXUMA1 from Infineon Technologies is an automotive-qualified 32-bit Arm® Cortex®-M0 microcontroller with integrated LIN 2.2 transceiver, adaptive H-bridge NFET driver, current sense amplifier, and dual ADC subsystems (10-bit + 8-bit). It operates from 3 V to 28 V supply, supports -40°C to +175°C junction temperature, and targets single-phase BLDC motor control in HVAC blowers and water pumps.

For engineers reviewing the TLE9854QXWXUMA1 datasheet, TLE9854QXWXUMA1 pinout, TLE9854QXWXUMA1 application, or TLE9854QXWXUMA1 equivalent, key selection criteria include its adaptive gate-drive algorithm for EMI/power trade-off optimization, cyclic-sense wake-up capability in Sleep/Stop modes, integrated 4 kB RAM and 64 kB Flash with EEPROM emulation, and AEC-Q100 qualification for under-hood deployment.

Technical Context

The TLE9854QXWXUMA1 integrates a 40 MHz Arm Cortex-M0 core with single-cycle multiplier and dedicated Math Co-Processor Unit supporting signed/unsigned 32-bit division. Its system architecture includes two independent ADC measurement units: one 10-bit converter with 12-channel input multiplexing (including VBAT_SENSE, VS, and four HV monitor pins), and a separate 8-bit converter for voltage/temperature supervision.

Power management comprises three LDOs: 1.5 V core supply (VDDC), 5.0 V logic supply (VDDP), and 5.0 V external supply (VDDEXT) for Hall sensors. The PMU implements brownout detection, overtemperature shutdown, loss-of-clock fail-safe mode, and programmable window watchdog (WDT1) with independent clock source.

Key Specifications

Pinout & Package

Package: VQFN-48-29 (7 mm × 7 mm, leadless, RoHS-compliant, LTI feature).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE9854QXWXUMA1, the TLE9855 offers headroom for complex control algorithms and field updates, while the TLE9862 trades integrated LIN for flexibility in network topology-neither matches the TLE9854's balance of compactness, LIN autonomy, and thermal robustness for cost-sensitive single-motor nodes.

Availability

TLE9854QXWXUMA1 is available at Aetrix Electronics and suitable for automotive HVAC blowers, engine cooling pumps, electric power steering assist modules, and seat ventilation systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLE9854QXWXUMA1 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 ICs, and embedded power solutions, with global R&D and manufacturing infrastructure.

The MOTIX™ TLE985x product line delivers highly integrated, AEC-Q100-qualified motor control SoCs targeting cost-sensitive, space-constrained automotive actuators-designed to replace multi-chip solutions with single-package intelligence.

FAQ

What is the maximum junction temperature rating and thermal derating behavior?

The TLE9854QXWXUMA1 is qualified to AEC-Q100 Grade 0 with a maximum junction temperature of +175°C. It includes on-die temperature sensing and automatic thermal shutdown at ~185°C. No thermal derating is specified below +175°C; full electrical performance is guaranteed across the entire -40°C to +175°C range per datasheet Section 3.2.

Does the device support hardware-based PWM dead-time insertion for H-bridge safety?

Yes-the CCU6 capture/compare unit provides configurable, hardware-enforced dead-time insertion between complementary PWM outputs. Dead time is programmable in 12.5 ns steps (minimum 25 ns), and the unit includes fault inputs that immediately disable outputs on overcurrent or overtemperature events.

Can the 4 HV monitor inputs be used simultaneously with the 10-bit ADC for battery diagnostics?

Yes-HV1–HV4 are fully integrated into the 10-bit ADC's 12-channel multiplexer. All four can be sampled sequentially within a single conversion sequence, with configurable sample-and-hold timing. Each input supports direct 0–28 V measurement using internal scaling, eliminating external voltage dividers.

Is the 4 KB RAM partitioned or cache-enabled for real-time motor control latency?

The 4 KB RAM is unified SRAM with zero-wait-state access at 40 MHz. It is not cache-enabled but supports bit-band aliasing for atomic peripheral register access. Critical control variables (e.g., PID coefficients, PWM duty registers) are typically placed in this RAM to guarantee deterministic <100 ns read/write latency for time-critical ISR execution.