Infineon Technologies TLE9832QXXUMA2

Overview

TLE9832QXXUMA2 from Infineon Technologies is an automotive-qualified 8-bit microcontroller integrating LIN transceiver, high-side and dual low-side power switches, 32 kB Flash + 4 kB emulated EEPROM, XC800 core (40 MHz), and on-chip 1.5 V/5.0 V regulators - designed for body control modules, seat/mirror actuators, and LIN-based smart sensors in 12 V vehicle systems.

For engineers reviewing the TLE9832QXXUMA2 datasheet, TLE9832QXXUMA2 pinout, TLE9832QXXUMA2 application, or TLE9832QXXUMA2 equivalent, this device delivers integrated power switching, LIN physical layer compliance (LIN 1.3/2.0/2.1), real-time PWM generation via CCU6, hardware watchdog with windowing, and bootROM-enabled firmware updates over LIN bus.

Technical Context

The TLE9832QXXUMA2 integrates a fully functional XC800 8051-compatible core operating at up to 40 MHz with two clocks per machine cycle, paired with dedicated power management (VDDC = 1.5 V core supply, VDDP = 5.0 V I/O supply) and loss-of-clock detection triggering fail-safe shutdown of integrated power switches. Its system clock architecture combines internal RC oscillator, external crystal (XTAL1/XTAL2), and PLL for flexible timing configuration.

Functional integration includes a LIN 2.1-compliant transceiver with bus wake-up capability, five 16-bit timers (Timer 0–3, Timer 21), CCU6 capture/compare unit for three-phase PWM, UART with LIN bootloader support, and analog measurement subsystem comprising dual ADCs (8-bit ADC2 + 10-bit ADC1), high-voltage monitor input (VBAT_SENSE), and on-die temperature sensor.

Key Specifications

Pinout & Package

Package: PG-VQFN-48-77 (7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad). Pin count: 48 terminals. Thermal pad must be soldered to PCB ground plane for safe operation at full load.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive LIN node controller applications.

Compared with TLE9833QXXUMA2, the TLE9832QXXUMA2 provides sufficient PWM resolution and single-LIN capability at lower cost and power; versus SPC560B50L5, it delivers higher integration density and lower BOM for simple LIN-actuated nodes but lacks CAN and 32-bit processing.

Availability

TLE9832QXXUMA2 is available at Aetrix Electronics and suitable for automotive body electronics, LIN-based sensor nodes, and actuator control systems requiring stable component supply across extended temperature ranges (−40 °C to +125 °C) and AEC-Q100 qualification.

Supply support for TLE9832QXXUMA2 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.

The TLE9832 belongs to Infineon's TLE98xx family of automotive LIN system basis chips (SBCs), engineered to consolidate microcontroller, LIN transceiver, and power switches into single-package solutions for cost-sensitive, space-constrained body electronics.

FAQ

Is the TLE9832QXXUMA2 qualified for automotive use?

Yes. The TLE9832QXXUMA2 is AEC-Q100 qualified (Grade 1: −40 °C to +125 °C ambient), features integrated watchdog timers with windowing, clock failure detection, and fail-safe power switch disable - meeting functional safety requirements for non-safety-critical automotive applications such as seat/mirror controls and LIN sensor nodes.

Does it support in-system programming over LIN?

Yes. The device includes a LIN Bootstrap Loader (LIN BSL) stored in BootROM, enabling firmware updates via standard LIN frames without external debug hardware. This allows field reprogramming using existing vehicle LIN infrastructure and supports secure authentication via configurable password protection.

What is the maximum load current supported by the integrated high-side switch?

The integrated high-side switch supports 420 mA continuous current at 25 °C (derated to 280 mA at 125 °C), with typical R_DS(on) of 0.7 Ω. It includes overcurrent detection, thermal shutdown, and current-sense output for closed-loop control - suitable for driving small relays, solenoids, or LED arrays.

Can the TLE9832QXXUMA2 operate without an external crystal?

Yes. The device includes an internal RC oscillator (±10% accuracy) sufficient for LIN baud rate generation in non-critical timing applications. For LIN 2.x compliance requiring ±1.5% clock accuracy, an external 1–20 MHz crystal connected to XTAL1/XTAL2 is mandatory - the internal PLL locks to this reference to generate the 40 MHz core clock.