Infineon Technologies TLE4208GXUMA2

Overview

TLE4208GXUMA2 from Infineon Technologies is a quad half-bridge driver IC designed for automotive DC motor control, featuring four independently controlled half-bridges (configured as two dual-half-bridge pairs), 0.8 A continuous output current per channel, 1.2 V typical total saturation voltage at 0.4 A and 25 °C, integrated short-circuit and overtemperature protection with diagnostic flag outputs, and AEC-Q100 qualification for under-hood applications.

For engineers reviewing the TLE4208GXUMA2 datasheet, TLE4208GXUMA2 pinout, TLE4208GXUMA2 application, or TLE4208GXUMA2 equivalent, key selection considerations include dual-supply rail support (VS12/VS34), independent inhibit inputs (INH12/INH34), open-collector error flags (EF12/EF34), CMOS/TTL-compatible logic inputs with hysteresis, and PG-DSO-28 package thermal performance in high-reliability motion control systems.

Technical Context

The TLE4208GXUMA2 implements two electrically isolated dual-half-bridge sections-half-bridges 1&2 share VS12 and INH12, while 3&4 share VS34 and INH34-enabling independent power domain control and fault isolation. Each half-bridge supports forward, reverse, brake (LL/HH), and high-impedance modes via truth-table-driven input logic (IN1–IN4) with no crossover current.

Diagnosis is implemented through two open-collector error flags: EF12 signals overtemperature or overvoltage on bridges 1&2; EF34 does the same for bridges 3&4. Protection functions-including short-circuit detection, undervoltage lockout (UVLO), overvoltage lockout (OVLO), and thermal shutdown with hysteresis-are fully integrated and do not require external components.

Key Specifications

Pinout & Package

Package: PG-DSO-28 (enhanced power SOIC, 28-pin, exposed thermal pad, RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BD1600FV-M and VNQ5E04K-E, the TLE4208GXUMA2 uniquely delivers true quad half-bridge operation with dual independent supply domains, full H-bridge configurability per pair, and hardware-level fault partitioning-making it the only option supporting AEC-Q100-compliant, diagnostics-rich multi-motor motion control in space-constrained automotive ECUs.

Availability

TLE4208GXUMA2 is available at Aetrix Electronics and suitable for automotive seat control, engine cooling fan management, and body control module (BCM) applications requiring stable component supply, AEC-Q100 qualification, and integrated diagnostics.

Supply support for TLE4208GXUMA2 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 global manufacturing and automotive qualification expertise.

The TLE4208GXUMA2 belongs to Infineon's TLE automotive power driver family, engineered specifically for robust, diagnostics-enabled DC motor control in harsh automotive environments-including under-hood and chassis applications.

FAQ

What is the maximum allowable supply voltage for VS12 and VS34?

The absolute maximum rating for VS12 and VS34 is 45 V, with transient capability up to 45 V for durations less than 0.5 seconds. Continuous operation must remain within the functional range of 5.5 V to 28 V per the datasheet's "Functional Range" table. Exceeding 45 V risks permanent damage, even with protection circuits active.

Can TLE4208GXUMA2 drive a single full-bridge motor using all four half-bridges?

No-TLE4208GXUMA2 is structured as two independent dual-half-bridge sections (1&2 and 3&4), each with its own supply (VS12/VS34) and inhibit (INH12/INH34). It cannot configure all four outputs into one monolithic full-bridge; instead, it supports up to three motors via cascade (e.g., two half-bridges per motor + one shared), or two independent full-bridge motors using separate sections.

How does the EF12/EF34 error flag behave during overtemperature events?

EF12 and EF34 are open-collector outputs that go low during overtemperature, overvoltage, or short-circuit faults in their respective half-bridge pairs. The flag remains low until the fault condition clears and junction temperature drops below the hysteresis threshold (typically ~15 °C below trip point), enabling automatic recovery without MCU intervention.

Is external flyback diode required when driving inductive loads?

No-TLE4208GXUMA2 integrates clamp diodes on all four outputs (OUT1–OUT4). These diodes provide freewheeling paths during inductive turn-off, eliminating the need for external flyback diodes in standard DC motor applications, provided layout minimizes parasitic inductance and thermal limits are observed.