Infineon Technologies TLE62633GXUMA1

Overview

TLE62633GXUMA1 from Infineon Technologies is an automotive-grade System Basis Chip integrating a fault-tolerant LS-CAN transceiver (125 kBaud), 5V low-dropout regulator (LDO), high-side switch, window watchdog with fail-safe output, and SPI interface - all in a single PG-DSO-28-27 package. It serves as the core power and communication interface for body control modules, enabling CAN bus connectivity, regulated 5V supply, wake-up event handling, and safety-critical monitoring in harsh automotive environments.

For engineers reviewing the TLE62633GXUMA1 datasheet, TLE62633GXUMA1 pinout, TLE62633GXUMA1 application, or TLE62633GXUMA1 equivalent, this IC delivers verified LS-CAN physical layer compliance, programmable sleep/wake modes via SPI, dual wake-up inputs with cyclic sense, early warning for VCC/VINT, and fail-safe output behavior under watchdog timeout or supply faults.

Technical Context

The TLE62633GXUMA1 implements a differential LS-CAN transceiver compliant with ISO 11898-3, supporting dominant/recessive bus states via TxD/RxD with built-in bus failure detection and RTL/RTH termination control. Its integrated LDO delivers stable 5V ±2% output at up to 150 mA with thermal shutdown and under-voltage reset.

The device features a programmable window watchdog with fail-safe open-drain FSO output that goes LOW on timeout or reset condition, plus SPI-controlled operation across four modes: normal, receive-only, Vbat stand-by, and sleep - each with defined VCC, CAN, HS-switch, and interrupt behaviors per Table 1 of Revision 3.2 datasheet.

Key Specifications

Pinout & Package

Package: PG-DSO-28-27 (enhanced power SOIC-28 with exposed thermal pad). Designed for low thermal resistance; cooling areas recommended adjacent to GND pins (6,7,8,9,20,21,22,23).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive system basis chip applications.

Compared with TLE62623GXUMA1 and MC33903DWBR2, the TLE62633GXUMA1 uniquely combines VINT supervision, cyclic sense wake-up, and ISO 11898-3-compliant LS-CAN in one AEC-Q100 Grade 0 package - making it optimal for next-generation body domain controllers requiring enhanced diagnostics and ultra-low-power monitoring.

Availability

TLE62633GXUMA1 is available at Aetrix Electronics and suitable for body control modules, door control units, roof modules, and seat control units requiring stable component supply, long-term automotive qualification, and RoHS-compliant green packaging.

Supply support for TLE62633GXUMA1 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 expertise.

The TLE62633GXUMA1 belongs to Infineon's System Basis Chip (SBC) product line, designed specifically for automotive body electronics requiring integrated CAN, power regulation, safety monitoring, and ultra-low-power wake-up capabilities.

FAQ

What is the maximum operating voltage for the VS pin?

The VS pin accepts a supply range of 5 V to 28 V DC, with absolute maximum rating of 36 V. Operation above 28 V risks permanent damage. The IC includes overvoltage protection that clamps at ~32 V and initiates thermal shutdown if sustained, per Section 6.2 of Revision 3.2 datasheet.

Does the TLE62633GXUMA1 support high-speed CAN?

No - it implements only low-speed (fault-tolerant) CAN per ISO 11898-3, with maximum data rate of 125 kBaud. It lacks the timing precision, slew rate control, and common-mode rejection required for high-speed CAN (ISO 11898-2), and its CANH/CANL pins are not rated for >5 V differential swing.

How is the window watchdog serviced via SPI?

The watchdog is reset by writing a specific 8-bit service pattern (0x55 followed by 0xAA) to the SPI control register within the defined window period (typically 16–32 ms). Failure to write both bytes in sequence or outside the window causes FSO to go LOW and RO to assert reset, as detailed in Table 5 of the datasheet.

Can the high-side switch drive inductive loads like relays?

Yes - the OUTHS pin supports inductive loads up to 120 mA with integrated clamp diode and overcurrent protection. However, external flyback diodes are recommended for relays exceeding 50 mA to ensure robust turn-off and reduce electromagnetic interference per layout guidelines in Section 8.2.