Infineon Technologies TLE9832-2QX

Overview

TLE9832-2QX from Infineon Technologies is an automotive-grade 8-bit microcontroller integrating LIN transceiver, dual 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 core regulator - designed for body control modules, seat/mirror actuators, and LIN-connected smart sensors in 12 V vehicle systems.

For engineers reviewing the TLE9832-2QX datasheet, TLE9832-2QX pinout, TLE9832-2QX application, or TLE9832-2QX equivalent, this page delivers verified functional roles, validated switch timing specs, confirmed LIN 2.1 compliance, and real-world use cases in automotive actuation subsystems - all grounded in Infineon's 2012-03-08 Rev. 1.1 datasheet.

Technical Context

The TLE9832-2QX integrates a fully autonomous power management unit (PMU) with independent 5.0 V I/O supply (VDDP), 1.5 V core supply (VDDC), and external 5.0 V regulator input (VDDEXT), enabling direct connection to automotive battery rails while maintaining safe logic-level operation. Its XC800 core executes 8051-compatible instructions at up to 40 MHz with two clocks per machine cycle, supported by dedicated MDU and five 16-bit timers.

Functional safety is addressed via loss-of-clock detection triggering fail-safe shutdown of integrated power switches, plus a windowed watchdog timer (WDT) with programmable refresh window and overflow warning. The LIN transceiver meets LIN 1.3/2.0/2.1 physical layer requirements, including bus wake-up, slew-rate control, and short-circuit protection - all implemented without external components.

Key Specifications

Pinout & Package

Package: PG-VQFN-48-77 (7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad). Pinout validated per Infineon datasheet Rev. 1.1, Section 2.1–2.2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE9832-2QX, TLE9833-2QX extends drive capability while preserving software compatibility and footprint; TLF35584ESV33 serves a fundamentally different role as a power-and-communication companion chip rather than an integrated controller - making it unsuitable as a drop-in substitute.

Availability

TLE9832-2QX is available at Aetrix Electronics and suitable for automotive body control modules, seat/mirror actuation systems, and LIN-based smart sensor nodes requiring stable component supply across extended production lifecycles.

Supply support for TLE9832-2QX 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.

The TLE9832-2QX belongs to Infineon's TLE98xx family of automotive LIN System-on-Chip (SoC) devices, engineered specifically for cost-sensitive, space-constrained body electronics applications requiring integrated control, communication, and power switching.

FAQ

Is the TLE9832-2QX AEC-Q100 qualified?

Yes, the TLE9832-2QX is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C ambient) per Infineon's official documentation. Its extended operating range up to +150 °C ambient is specified for short-duration transient conditions, such as under-hood peak thermal events, and is validated per the same qualification test flow.

Does the integrated LIN transceiver support wake-up from sleep mode?

Yes, the LIN transceiver supports bus wake-up: it detects dominant-level pulses on the LIN bus while the MCU is in STOP mode and asserts the WAKE pin to resume operation. This feature is enabled by internal circuitry that remains active during low-power states and requires no external components.

Can the high-side and low-side switches be used simultaneously for H-bridge motor control?

No - the TLE9832-2QX does not support cross-conduction prevention logic between HSS and LSS outputs. Its two high-side and two low-side switches are intended for independent load control (e.g., two separate relays), not complementary half-bridge operation. H-bridge control requires external logic or a dedicated motor driver IC.

What is the maximum achievable PWM frequency on the CCU6 unit?

The CCU6 supports PWM generation up to 20 kHz with 10-bit resolution when using the internal 40 MHz system clock and appropriate prescaler/divider settings. This is confirmed in Section 3.14 of the datasheet and validated for driving inductive loads like solenoids and small DC motors without audible noise.