Infineon Technologies TLE9834QXXUMA2

Overview

TLE9834QXXUMA2 from Infineon Technologies is an automotive-qualified 8-bit microcontroller integrating LIN transceiver, dual high-side and dual low-side power switches, 40 MHz XC800 core, 60 kB Flash + 4 kB emulated EEPROM, 256 B RAM, and on-chip 1.5 V/5.0 V regulators - designed for body control modules, seat/mirror actuators, and LIN-connected smart power nodes.

For engineers reviewing the TLE9834QXXUMA2 datasheet, TLE9834QXXUMA2 pinout, TLE9834QXXUMA2 application, or TLE9834QXXUMA2 equivalent, this device delivers integrated LIN communication, real-time PWM-controlled power switching, and fail-safe clock monitoring - critical for cost-sensitive, space-constrained automotive sub-systems requiring functional safety up to ASIL-B.

Technical Context

The TLE9834QXXUMA2 implements a dual-voltage architecture: 1.5 V core supply (VDDC) powers the XC800 CPU and digital logic, while 5.0 V I/O supply (VDDP) drives GPIO, LIN transceiver, and switch drivers. Its internal PLL locks to external crystal (1–20 MHz) or RC oscillator, with loss-of-clock detection triggering automatic shutdown of high-side switches.

Power switching is managed via dedicated hardware blocks: two high-side switches (R_DS(on) = 120 mΩ typ. @ 25°C, 500 mA max) and two low-side switches (R_DS(on) = 80 mΩ typ., 1 A max), each supporting PWM modulation, overcurrent protection, and thermal shutdown - all controlled directly by CCU6 timers without CPU intervention.

Key Specifications

Pinout & Package

Package: PG-VQFN-48-77 (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-power-switch applications.

Compared with TLF35584ESV33 and SPC560B50L5, the TLE9834QXXUMA2 uniquely combines 8-bit control, LIN PHY, and dual HS/LS switching in one die - delivering lowest bill-of-materials for LIN-attached actuators where MCU compute demand is moderate and integration priority is highest.

Availability

TLE9834QXXUMA2 is available at Aetrix Electronics and suitable for seat control modules, mirror adjustment systems, smart lighting nodes, and door lock actuators requiring stable component supply across automotive production lifecycles.

Supply support for TLE9834QXXUMA2 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.

The TLE9834 belongs to Infineon's TLE98xx family of automotive LIN System-on-Chip devices - engineered specifically for cost-optimized, functionally safe body electronics requiring integrated power switching and communication.

FAQ

What is the maximum operating junction temperature for TLE9834QXXUMA2?

The absolute maximum junction temperature is +150 °C, with recommended continuous operation limited to +125 °C under specified thermal conditions. The device integrates thermal shutdown that disables high-side switches at T_J ≥ 160 °C, and thermal derating begins at 100 °C ambient with standard PCB copper pour (2 oz, 2-layer).

Does TLE9834QXXUMA2 support LIN sleep/wake functionality?

Yes - it supports LIN 2.x sleep mode with automatic wake-up via bus activity or external pin (WAKE). The LIN transceiver remains powered in sleep, drawing <15 µA typical, and detects dominant pulses to trigger MCU wake-up within 150 µs. Wake-up source identification is handled in hardware.

Can the high-side switches be used in parallel to increase current capacity?

No - the datasheet does not specify matched characteristics or current-sharing capability between HS1 and HS2. Each high-side switch is independently rated for 500 mA continuous current and must be used separately. Parallel use risks thermal imbalance and premature failure due to mismatched R_DS(on) and thermal coupling.

Is there hardware support for PWM dead-time insertion in the CCU6 unit?

Yes - the CCU6 module includes programmable dead-time generators for complementary PWM outputs. Dead time can be set in steps of 12.5 ns (at 80 MHz CCU6 clock) from 0 to 1.02 µs, ensuring safe commutation in H-bridge configurations without software overhead or timing jitter.