Infineon Technologies TLE9261QXXUMA2

Overview

TLE9261QXXUMA2 from Infineon Technologies is an automotive System Basis Chip (SBC) integrating dual voltage regulators (VCC1: 5 V/300 mA, VCC2: 3.3 V/150 mA), three high-side switches (HS1–HS3), HS-CAN transceiver with CAN FD support, wake-up inputs (WK1/WK2), watchdog, reset, and thermal protection. It serves as central power management and communication interface in body control modules for 12 V vehicle electrical systems.

For engineers reviewing the TLE9261QXXUMA2 datasheet, TLE9261QXXUMA2 pinout, TLE9261QXXUMA2 application, or TLE9261QXXUMA2 equivalent, this device is selected for automotive body electronics requiring integrated power regulation, CAN FD communication, controlled load switching, and robust wake/sleep state management under ASIL-B functional safety constraints.

Technical Context

The TLE9261QXXUMA2 implements a hierarchical state machine with six operational modes (Normal, Stop, Sleep, Restart, Fail-Safe, Development), each defining regulator enablement, CAN transceiver behavior, HS-switch control, and interrupt generation. Its CAN FD transceiver supports data rates up to 2 Mbit/s and includes bus dominant clamping, TXD time-out, and wake-capable operation.

Wake functionality combines cyclic sense (programmable 1–255 ms intervals), cyclic wake (external timer-triggered), and analog measurement capability on WK1/WK2 pins for battery voltage monitoring. Supervision includes independent over/under-voltage detection on VCC1, VCC2, VSHS, VS, and VCAN, plus thermal prewarning and shutdown at 150 °C.

Key Specifications

Pinout & Package

Package: PG-VQFN-48-19 (4.5 mm × 6.0 mm, 0.4 mm pitch, exposed thermal pad).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar System Basis Chip applications.

Compared with MC33816AE and TLF35584QVVS1, the TLE9261QXXUMA2 uniquely combines CAN FD transceiver, dual regulators, and three HS switches in one PG-VQFN-48 package-reducing board area by ≥35 % and eliminating external CAN timing components required by alternatives.

Availability

TLE9261QXXUMA2 is available at Aetrix Electronics and suitable for front door modules, rear liftgate control units, roof modules, and seat control units requiring stable component supply across automotive production lifecycles.

Supply support for TLE9261QXXUMA2 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 is a German semiconductor manufacturer specializing in automotive, power management, and security solutions, with global manufacturing and qualification to AEC-Q100 Grade 1.

The TLE9261QXXUMA2 belongs to Infineon's mid-range System Basis Chip family, designed specifically for body electronics ECUs needing integrated power, communication, and load driving in compact, thermally constrained packages.

FAQ

What is the maximum allowable supply voltage for VCC1 and VCC2 inputs?

VCC1 and VCC2 accept 4.5 V to 40 V DC input per absolute maximum ratings. These pins connect directly to the vehicle battery rail and must withstand load dump pulses up to 40 V. Operation outside this range risks permanent damage; design must include transient voltage suppression per ISO 7637-2 Pulse 5a.

Does the TLE9261QXXUMA2 support partial networking or selective wake via CAN FD frames?

No. The CAN FD transceiver supports wake-on-bus-activity (edge detection on CANH/CANL) but does not decode message IDs or implement partial networking. Wake is triggered solely by physical layer transitions, not by specific CAN frame content or arbitration field patterns.

Can HS1–HS3 be PWM-controlled independently at different frequencies?

Yes. Each high-side switch supports independent PWM control via dedicated control registers. The internal timer allows programmable PWM frequency from 100 Hz to 25 kHz with 0–100 % duty cycle resolution, enabling precise dimming of LED loads or speed control of small DC motors.

Is the RESET output compatible with 1.8 V or 2.5 V logic-level MCUs?

No. The RESET output is open-drain with internal pull-up to VCC1 (5 V). To interface with 1.8 V or 2.5 V MCUs, an external level-shifting circuit (e.g., resistor divider or dedicated level shifter) is required to avoid violating the MCU's absolute maximum input voltage rating.