Infineon Technologies TLE9272QXV33XUMA2

Overview

TLE9272QXV33 from Infineon is a high-end automotive System Basis Chip (SBC) integrating 3.3 V/750 mA SMPS buck regulator, 5 V/100 mA LDO, DC/DC boost converter, HS-CAN FD transceiver (ISO 11898-2:2016, up to 5 Mbps), and three LIN transceivers (LIN 2.2/SAE J2602) - all in a single PG-VQFN-48 package. It serves as the central power and communication hub for microcontrollers in body control modules and gateways.

For engineers reviewing the TLE9272QXV33 datasheet, TLE9272QXV33 pinout, TLE9272QXV33 application, or TLE9272QXV33 equivalent, key selection criteria include CAN FD timing compliance, LIN TXD timeout configurability, SBC Stop-mode quiescent current (< 20 µA), and fail-safe output activation logic under MCU fault detection.

Technical Context

The device implements a hierarchical state machine with six operational modes (Normal, Stop, Sleep, Restart, Fail-Safe, Development), each with distinct power sequencing, wake-source enablement, and supervision behavior. Its SPI interface (16-bit, full-duplex) enables real-time configuration of watchdog windows, cyclic wake intervals, and LIN/CAN mode transitions.

Power regulation combines synchronous buck (3.3 V, 750 mA), boost (for battery < 6 V operation), and protected 5 V LDO with off-board short-circuit and thermal shutdown. The CAN FD transceiver supports dominant clamping, VCAN undervoltage detection, and wake-capable pattern recognition; LIN transceivers feature programmable TXD timeout and Flash mode entry.

Key Specifications

Pinout & Package

PG-VQFN-48 (7 mm × 7 mm) leadless package with exposed thermal pad and Lead Tip Inspection (LTI) feature for automated optical inspection. Pin assignment validated per Infineon datasheet Rev. 2.0 (2022-05-06), Section 3.1–3.2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE9273QXV33, this part reduces LIN channel count to optimize cost and routing density without sacrificing CAN FD performance or power capability; versus TLE9271QXV33, it adds one LIN channel and associated fault-handling logic for mid-tier automotive modules requiring balanced integration and scalability.

Availability

TLE9272QXV33 is available at Aetrix Electronics and suitable for body control modules, automotive gateways, and HVAC ECUs requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.

Supply support for TLE9272QXV33 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 OPTIREG™ SBC family targets automotive domain controllers and ECUs needing integrated power, communication, and supervision - designed specifically to replace multi-chip power+interface solutions in ASIL-B systems.

FAQ

What is the maximum allowed supply voltage for VCC?

The absolute maximum rating for VCC is 32 V, but the functional operating range is 5.5 V to 28 V per datasheet Section 4.1 and 4.2. Operation above 28 V risks triggering overvoltage protection and entering safe state; sustained voltage beyond 32 V may cause permanent damage. Designers must include transient suppression (e.g., TVS diode) for load-dump events.

Does the TLE9272QXV33 support partial networking on CAN FD?

Yes - the CAN FD transceiver supports selective wake-up via configurable wake patterns (Section 8.2.4), enabling partial networking where only targeted nodes respond to specific identifier-based frames. This requires SPI configuration of the wake mask register and is validated per ISO 11898-2:2016 Annex D for multi-node wake arbitration.

How is LIN Flash mode initiated and what pins are involved?

LIN Flash mode is triggered by a specific break/delimiter sequence on any enabled LIN channel, followed by a valid header with ID 0x3C. No dedicated pin is required - the function is fully handled within the LIN transceiver logic and controlled via SPI register bit LIN_FLASH_EN. The mode disables normal LIN protocol handling and enables direct firmware upload over the LIN bus.

Can the 3.3 V SMPS and 5 V LDO operate simultaneously while the device is in Stop mode?

No - in SBC Stop mode, only the 3.3 V SMPS remains active (with PFM operation); the 5 V LDO is disabled to minimize quiescent current. The LDO re-enables automatically upon transition to Normal mode. This behavior is hardwired and cannot be overridden via SPI; it ensures total system IQ remains below 20 µA during battery-connected standby.