Infineon Technologies TLE9832QVXUMA3

Overview

TLE9832QVXUMA3 from Infineon Technologies is an automotive-qualified 8-bit microcontroller integrating LIN transceiver, dual low-side switches (1.2 A continuous), one high-side switch (0.5 A), 32 kB Flash + 4 kB emulated EEPROM, XC800 core (40 MHz), and 10-bit ADC - designed for body control modules, seat/mirror actuators, and LIN-connected smart sensors.

For engineers reviewing the TLE9832QVXUMA3 datasheet, TLE9832QVXUMA3 pinout, TLE9832QVXUMA3 application, or TLE9832QVXUMA3 equivalent, this device delivers integrated power switching, LIN 2.1 compliance, fail-safe clock monitoring, on-chip 1.5 V core regulation, and debug via 2-wire DAP - critical for cost-sensitive, space-constrained automotive subsystems requiring functional safety support.

Technical Context

The TLE9832QVXUMA3 integrates a 40 MHz XC800 8051-compatible core with two data pointers and two clocks per machine cycle, enabling deterministic real-time control. Its PMU provides independent 1.5 V (VDDC) core and 5.0 V (VDDP) I/O supplies, plus external 5.0 V regulator input (VDDEXT) for system-level power flexibility.

Functional integration includes LIN 2.1-compliant transceiver with wake-up capability, CCU6-based PWM generation with dead-time control, dual low-side switches with overcurrent clamping and PWM modulation, and a high-side switch with cyclic current sense for load diagnostics - all coordinated under a single system control unit with watchdog windowing and loss-of-clock detection.

Key Specifications

Pinout & Package

Package: QFN-48 (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad - optimized for compact automotive PCB layouts and thermal dissipation in sealed enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller-with-integrated-power-switch applications.

Compared with TLF35584QVVS1 and SPC560B50L5, the TLE9832QVXUMA3 uniquely combines 8-bit real-time control, LIN connectivity, and dual low-side/high-side switching in a single QFN-48 package - delivering lowest system cost and smallest footprint for LIN-actuated body electronics below 100 kHz PWM bandwidth.

Availability

TLE9832QVXUMA3 is available at Aetrix Electronics and suitable for seat position control, mirror adjustment modules, smart window lift controllers, and body control relay drivers requiring stable component supply across automotive production lifecycles.

Supply support for TLE9832QVXUMA3 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 MCUs, and sensor solutions - with global R&D centers and automotive-grade manufacturing facilities certified to IATF 16949.

The TLE9832 belongs to Infineon's TLE98xx family of automotive LIN system-on-chip devices - engineered specifically for cost-optimized, functionally safe body electronics where integration of control, communication, and power switching reduces system complexity and validation effort.

FAQ

Does TLE9832QVXUMA3 support LIN 2.1 physical layer and protocol stack?

Yes, the integrated LIN transceiver complies with LIN 2.1 (ISO 17987-4), including slew-rate control, bus short-circuit protection, and wake-up pulse detection. The on-chip BootROM includes LIN Bootstrap Loader (LIN BSL) firmware, enabling firmware updates over LIN without external tools - verified in Infineon's TLE9832 Application Note AP32277.

What is the maximum continuous current rating for the integrated high-side switch?

The high-side switch (HSW) supports 0.5 A continuous current at ambient temperatures up to 125 °C, with thermal shutdown activation at junction temperatures exceeding 160 °C. Current limit is fixed at 1.2 A peak, and cyclic sense enables diagnostic reporting of load current every 100 µs - specified in Section 5.11 of the Rev. 1.1 datasheet.

Can the TLE9832QVXUMA3 operate without an external crystal?

Yes - it includes an internal RC oscillator (12 MHz ±10%) usable for LIN communication and basic operation. However, for LIN baud rate accuracy better than ±1.5%, an external crystal (e.g., 11.0592 MHz) is required on XTAL1/XTAL2 pins, as confirmed in Section 5.3.2 of the datasheet and validated in Infineon's TLE9832 Evaluation Kit user manual.

Is the 4 kB emulated EEPROM area wear-levelled and guaranteed for 100,000 write cycles?

Yes - the 4 kB Flash region configured for EEPROM emulation uses Infineon's proprietary wear-leveling algorithm implemented in BootROM, guaranteeing ≥100,000 write/erase cycles and data retention of 10 years at 125 °C - documented in Section 3.5 (Flash Memory) and confirmed in Application Note AP32278 for TLE9832 firmware development.