Infineon Technologies TLE84106ELXUMA1

Overview

TLE84106ELXUMA1 from Infineon Technologies is a protected hex half-bridge driver IC designed for automotive DC motor control in HVAC flap actuation systems. It integrates six independently controllable and diagnosable half-bridge outputs, supports 7–18 V load supply (VS), 3.0–5.5 V logic supply (VDD), and features SPI-based control with daisy-chain capability up to 5 MHz.

For engineers reviewing the TLE84106ELXUMA1 datasheet, TLE84106ELXUMA1 pinout, TLE84106ELXUMA1 application, or TLE84106ELXUMA1 equivalent, key selection criteria include its AEC-Q100 qualification, open-load diagnostics in ON-state, cross-current protection, thermal prewarning, and PG-SSOP-24-4 package with exposed die pad for enhanced thermal performance.

Technical Context

The device implements six independent half-bridge stages-each comprising high-side and low-side DMOS drivers-with dedicated current sensing and fault detection per channel. Control is fully digital via a 16-bit SPI interface supporting status readback, configuration write, and daisy-chaining across multiple devices.

Protection architecture includes real-time monitoring of overtemperature (with prewarning flag), VS undervoltage/overvoltage lockout, short-circuit-to-battery/ground detection, open-load diagnosis in active state, and cross-current prevention during switching transitions-all implemented in hardware without MCU intervention.

Key Specifications

Pinout & Package

Package: PG-SSOP-24-4 (24-pin thermally enhanced exposed-pad SOIC variant, 0.65 mm pitch). Exposed die pad improves PCB heat transfer but is electrically isolated; recommended connection to GND for EMC and thermal optimization.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex half-bridge driver applications.

Compared with BTS724G and TLE9201SG, the TLE84106ELXUMA1 uniquely combines hex channel count, dual VS rail partitioning, ON-state open-load detection, and daisy-chain SPI-making it optimal for distributed HVAC actuator nodes requiring high integration and functional safety awareness.

Availability

TLE84106ELXUMA1 is available at Aetrix Electronics and suitable for automotive HVAC systems, seat adjustment modules, and engine cooling fan controllers requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for TLE84106ELXUMA1 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 electronics, and industrial control ICs, with leadership in Smart Power Technology (SPT®).

The TLE84106ELXUMA1 belongs to Infineon's TLE family of protected automotive drivers, engineered specifically for cost-sensitive, space-constrained motion control applications demanding high reliability and integrated diagnostics.

FAQ

What is the maximum continuous current per half-bridge output?

The TLE84106ELXUMA1 supports a minimum overcurrent threshold of 0.8 A per motor channel, with internal current limiting activated above this value. Continuous operation is rated up to 1.8 A total per VS rail (VS1 or VS2), shared across three outputs. Thermal derating applies above 85°C ambient.

Does the device support PWM motor control?

Yes - each half-bridge can be independently controlled via SPI to generate forward, reverse, brake, or high-impedance states. External MCU-generated PWM signals applied to the INH pin or via rapid SPI command sequences enable variable-speed motor control with precise timing alignment.

How is open-load detection performed and when is it active?

Open-load diagnosis operates only in the ON-state (when high-side or low-side is actively driven), measuring current flow through internal sense FETs. It reports via dedicated bits in the SPI diagnosis word and does not function in high-impedance or brake modes.

Is the exposed die pad electrically connected internally?

No - the exposed die pad is electrically isolated from all internal circuitry. It serves solely for thermal conduction and EMC improvement. For optimal performance, it should be soldered to a large GND copper area on the PCB, but must not be used as a signal or power return path.