Infineon Technologies TLE9263BQXV33XUMA1

Overview

TLE9263BQXV33 from Infineon Technologies is an automotive-grade System Basis Chip (SBC) integrating dual voltage regulators (3.3 V/250 mA main, 5 V/100 mA auxiliary), one high-speed CAN FD transceiver (5 Mbit/s, ISO 11898-2:2016 compliant), two LIN 2.2 transceivers, four 7 Ω high-side switches, and three HV wake inputs - deployed in body control modules for power management, communication, and load driving functions.

For engineers reviewing the TLE9263BQXV33 datasheet, TLE9263BQXV33 pinout, TLE9263BQXV33 application, or TLE9263BQXV33 equivalent, this device supports critical automotive subsystems requiring integrated power regulation, CAN FD/LIN networking, fail-safe supervision, and configurable high-voltage I/O with AEC-Q100 qualification.

Technical Context

The TLE9263BQXV33 implements a multi-state machine architecture supporting six operational modes (Normal, Stop, Sleep, Restart, Fail-Safe, Development), each with distinct power consumption, wake source handling, and peripheral enablement logic. Its CAN FD transceiver includes partial networking support and TXD time-out protection, while both LIN transceivers support flash programming via LIN and slope selection for EMI optimization.

Supervision functions include a programmable watchdog timer, interrupt and reset outputs, cyclic sense/wake capability, and internal timer-based wake events. The external PNP-configurable regulator (3.3 V or 1.8 V) enables off-board usage or load sharing, with short-to-battery protection and open-load detection on all four high-side outputs.

Key Specifications

Pinout & Package

Package: PG-VQFN-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 SBC applications.

Compared with TLE9263BQXV33, TLE9262BQXV33 reduces integration depth for lower-cost entry-tier modules, while MC33816PAE offers legacy CAN support and NXP ecosystem alignment - neither matches the full feature set of dual-LIN, CAN FD, and auxiliary 5 V regulation.

Availability

TLE9263BQXV33 is available at Aetrix Electronics and suitable for Body Control Modules, Passive Keyless Entry systems, and Gateway applications requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.

Supply support for TLE9263BQXV33 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 power management, automotive ICs, and security solutions, with global manufacturing and automotive qualification infrastructure.

The OPTIREG™ SBC family targets automotive body electronics, delivering integrated power, communication, and supervision functions to reduce ECU complexity and improve functional safety compliance in 12 V/24 V vehicle architectures.

FAQ

What is the maximum allowable input voltage for the VCC pin?

The absolute maximum rating for VCC is 40 V, but the functional operating range is 5.5 V to 28 V per the datasheet Rev. 1.2. Operation above 28 V may trigger undervoltage lockout or damage internal protection circuits. For sustained 24 V battery systems with load dump transients, external TVS clamping is recommended before VCC.

Does TLE9263BQXV33 support CAN FD Classic arbitration mode?

Yes - the integrated CAN transceiver complies with ISO 11898-2:2016 and supports both CAN FD data phase (up to 5 Mbit/s) and Classical CAN arbitration (up to 1 Mbit/s) within the same frame structure. It does not require external arbitration logic and handles bit timing automatically via SPI-configured registers.

How is open-load detection implemented on HS1–HS4 outputs?

Each high-side switch uses internal current-sense circuitry to monitor load current. When output is enabled but sensed current falls below 1 mA (typ.), the device flags an open-load condition via SPI status register and can assert INT pin. Detection works across all SBC modes except Fail-Safe, and is disabled during overtemperature shutdown.

Can the auxiliary 5 V regulator power external circuits during SBC Sleep mode?

No - the auxiliary 5 V regulator is disabled in Sleep, Stop, and Fail-Safe modes to minimize quiescent current. Only the main 3.3 V regulator remains active in Sleep mode (with reduced current capability), and VIO must be supplied externally if SPI or GPIO monitoring is required during low-power states.