Infineon Technologies TLE6255GNTMA1

Overview

TLE6255GNTMA1 from Infineon Technologies is a single-wire CAN transceiver designed for automotive body electronics networks. It supports up to 33 kBit/s in normal mode and 100 kBit/s in high-speed diagnostic mode, operates from 5.5 V to 28 V supply, features programmable slew rate via external resistor, and delivers 30 µA sleep current. It is used in vehicle door modules, seat control units, and lighting ECUs requiring robust low-power communication.

For engineers reviewing the TLE6255GNTMA1 datasheet, TLE6255GNTMA1 pinout, TLE6255GNTMA1 application, or TLE6255GNTMA1 equivalent, key selection criteria include single-wire bus compatibility, wake-up call capability, loss-of-ground protection, bi-level receiver threshold, and thermal shutdown behavior at 150 °C junction temperature.

Technical Context

The TLE6255GNTMA1 implements a bipolar-CMOS-DMOS monolithic architecture (SPT®) integrating logic control, power driver, and protection circuits on one die. Its mode logic (M0/M1) selects among four states: sleep, high-speed, wake-up call, and normal - each with distinct voltage thresholds, slew-rate behavior, and receiver sensitivity.

It uses an active waveform-shaping circuit to control both rising (recessive→dominant) and falling (dominant→recessive) edges on CANH, minimizing EME. The RSL pin enables external resistor-based slew-rate tuning (35–200 kΩ), while the LOAD pin connects to an internal reverse-protected switch that disables during loss-of-ground events.

Key Specifications

Pinout & Package

Package: P-DSO-14-9 (enhanced power SO-14 surface-mount package with high thermal capacity and low thermal resistance).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-wire CAN transceiver applications.

Compared with MC33661 and TCAN1042-Q1, the TLE6255GNTMA1 uniquely balances single-wire compatibility, 100 kBit/s diagnostic burst capability, and sub-50 µA sleep operation - making it irreplaceable in legacy automotive body networks where wiring cost and power budget are constrained.

Availability

TLE6255GNTMA1 is available at Aetrix Electronics and suitable for door control modules, seat position ECUs, interior lighting nodes, and climate control actuators requiring stable component supply across extended automotive production lifecycles.

Supply support for TLE6255GNTMA1 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 leadership in automotive-grade analog and mixed-signal devices.

The TLE6255GNTMA1 belongs to Infineon's TLE automotive transceiver family, engineered specifically for cost-sensitive, low-power, single-wire CAN networks in body electronics where wiring harness reduction and ECU sleep integrity are critical.

FAQ

What is the purpose of the LOAD pin?

The LOAD pin connects the internal unit-load termination resistor to ground. During loss-of-ground conditions, the integrated reverse-protected switch disables this connection to prevent current backfeed into the bus and maintain network integrity. It must be externally tied to the ECU's local ground plane per the application circuit.

How does the bi-level wake-up function work?

In sleep mode, the receiver threshold shifts to detect only high-voltage wake-up calls (not standard recessive/dominant levels). This allows targeted node activation without disturbing other sleeping ECUs. Wake-up detection occurs solely on RxD, and the transceiver exits sleep only upon M0/M1 reconfiguration - not automatically after bus activity.

Can TLE6255GNTMA1 operate without V_CC?

No. V_CC (5 V logic supply) is mandatory for internal logic, mode decoding, and RxD output functionality. While V_BATT powers the CANH driver, absence of V_CC disables all digital control - leaving the device non-operational even if V_BATT is present.

Is external termination required on the CANH line?

Yes - unlike two-wire CAN, single-wire CAN requires external termination. In high-speed mode, a 100 Ω resistor from CANH to GND is mandatory. In normal mode, termination is provided by the LOAD pin's internal resistor (enabled only when ground is valid), but system-level bus termination may still be needed depending on stub length and node count.