Infineon Technologies TLE9832QXXUMA1

Overview

TLE9832QXXUMA1 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 dual ADCs (8-bit + 10-bit). It serves as a system-on-chip for body electronics control in 12 V vehicle networks, delivering integrated power switching, real-time signal acquisition, and LIN communication in a single QFN-48 package.

For engineers reviewing the TLE9832QXXUMA1 datasheet, TLE9832QXXUMA1 pinout, TLE9832QXXUMA1 application, or TLE9832QXXUMA1 equivalent, key selection criteria include its dual low-side switch current rating (1.5 A continuous), high-side switch cyclic sense capability, LIN 2.1 compliance, 1.5 V core supply architecture, and on-chip debug via 2-wire DAP - all critical for cost-sensitive, space-constrained automotive sub-systems.

Technical Context

The TLE9832QXXUMA1 implements a dual-voltage PMU: 1.5 V core rail (VDDC) for the XC800 CPU and 5.0 V I/O rail (VDDP) for peripherals and LIN transceiver, with external 5.0 V regulator support (VDDEXT). Its clock system combines internal RC oscillator, crystal input (XTAL1/XTAL2), and PLL for precise timing control and loss-of-clock fail-safe triggering.

Functional integration includes CCU6 for PWM generation with dead-time control, two independent ADC subsystems (ADC1: 10-bit, 11-channel; ADC2: 8-bit, 4-channel), and dedicated high-voltage monitor input (VBAT_SENSE) with 10:1 attenuation for battery voltage tracking - all operating within -40 °C to 150 °C ambient range per AEC-Q100 Grade 1.

Key Specifications

Pinout & Package

Package: QFN-48 (7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLF35584ESV33 and SPC560B50L5, the TLE9832QXXUMA1 uniquely delivers MCU + LIN + dual low-side + high-side switching in one die - reducing component count, interconnect complexity, and qualification effort for entry-level automotive body controllers.

Availability

TLE9832QXXUMA1 is available at Aetrix Electronics and suitable for seat motor control, roof module actuation, door lock actuation, and interior lighting dimming requiring stable component supply across automotive production lifecycles.

Supply support for TLE9832QXXUMA1 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 and manufacturing infrastructure.

The TLE9832 belongs to Infineon's TLE98xx family of automotive system-on-chip MCUs, designed specifically for cost-optimized, highly integrated body electronics applications where LIN connectivity, power switching, and robust operation in harsh environments are essential.

FAQ

What LIN protocol versions does the TLE9832QXXUMA1 support?

The TLE9832QXXUMA1 integrates a LIN transceiver compliant with LIN specification versions 1.3, 2.0, and 2.1. It supports standard LIN frame formats, auto-baud detection, slave node response time calibration, and LIN sleep/wake-up functionality - all implemented in hardware without firmware overhead.

Does the TLE9832QXXUMA1 require external passive components for its voltage regulators?

Yes - the VDDP (5.0 V) and VDDC (1.5 V) regulators require external ceramic decoupling capacitors: minimum 100 nF each, placed within 2 mm of respective supply pins. The VDDEXT input also needs a 10 µF low-ESR capacitor. These values are specified in Section 4.5 of the datasheet for stability and transient response.

Can the high-side switch be used for load diagnosis beyond cyclic current sense?

Yes - the HSW supports open-load, short-to-ground, and overcurrent detection via its integrated cyclic sense circuitry. Diagnostic data is accessible through dedicated status registers and can trigger automatic shutdown or LIN error reporting, meeting ISO 26262 ASIL-A requirements for basic fault handling.

Is the TLE9832QXXUMA1 pin-compatible with other devices in the TLE98xx family?

No - the TLE9832QXXUMA1 uses a unique QFN-48 pinout optimized for its specific peripheral set. While functionally related to TLE9833/TLE9834, those variants differ in Flash size, ADC channel count, and switch configuration, and are not pin-compatible. Migration requires PCB redesign and firmware adaptation.