Infineon Technologies TLE6284GXUMA1

Overview

TLE6284GXUMA1 from Infineon Technologies is a dual-channel high- and low-side H-bridge gate driver IC for N-channel MOSFET power stages in automotive DC-brush motor control. It delivers 850 mA turn-on and 580 mA turn-off gate drive current, supports PWM frequencies up to 50 kHz, operates from 7.5 V to 60 V supply, and integrates adjustable dead time, shoot-through protection, and thermal warning at 170 °C - deployed in 12/24/42 V powernet systems for power seat and window lift actuators.

For engineers reviewing the TLE6284GXUMA1 datasheet, TLE6284GXUMA1 pinout, TLE6284GXUMA1 application, or TLE6284GXUMA1 equivalent, key selection criteria include adjustable short-circuit threshold via external resistors, independent high-side bootstrap supplies (BH1/BH2), dual error flags (ER1/ER2) distinguishing thermal vs. undervoltage faults, and AEC-Q100 qualification for under-hood motor control.

Technical Context

The TLE6284GXUMA1 implements two independent floating high-side drivers with integrated bootstrap diodes and dedicated low-side drivers, each with configurable short-circuit detection via DLx/DHx sense pins. Its DT/DIS pin simultaneously sets dead time (10 ns–3.1 µs with R_DT), resets diagnosis registers, and forces full output shutdown.

It features dual open-collector error outputs (ER1 = hard fault shutdown; ER2 = warning flag with thermal/undervoltage discrimination), TTL-compatible inputs (PWM, DIR, INH), and an inhibit mode reducing quiescent current to 0.6 mA at 14 V - enabling always-on automotive modules with strict leakage budgets.

Key Specifications

Pinout & Package

Package: PG-DSO-20 (20-pin exposed-pad SOIC with thermal pad, RoHS-compliant, AEC-Q100 qualified).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar H-bridge gate driver applications.

Compared with TLE6281G and BTS7200-2EPA, the TLE6284GXUMA1 uniquely supports dual independent H-bridges with field-adjustable protection, making it the only choice for automotive reversible actuators requiring both direction control and tunable fault response.

Availability

TLE6284GXUMA1 is available at Aetrix Electronics and suitable for automotive power seat actuation, auto window lift control, engine cooling fan regulation, and steering column adjustment requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLE6284GXUMA1 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 quality certification to IATF 16949.

The TLE6284GXUMA1 belongs to Infineon's TLE family of automotive-grade gate drivers, designed specifically for robust, high-current brushed DC motor control in harsh vehicle environments with AEC-Q100 qualification and integrated protection.

FAQ

What is the purpose of the DT/DIS pin beyond setting dead time?

The DT/DIS pin serves three distinct functions: (1) sets dead time via external resistor; (2) resets internal diagnosis registers when pulsed high (4–6 V) for 3.1–3.6 µs; and (3) forces full output shutdown when held >4 V for >7 µs. This triple functionality eliminates need for separate reset or disable lines, simplifying MCU GPIO usage in space-constrained modules.

How does the TLE6284GXUMA1 handle bootstrap capacitor charging?

The IC integrates bootstrap diodes between BH1/SH1 and BH2/SH2, eliminating external diodes. Bootstrap capacitors (e.g., 220 nF) connect from BHx to SHx. During low-side conduction, VS charges the capacitor through the internal diode; during high-side conduction, the capacitor supplies gate drive voltage above VS. Max ΔV_BHx–SHx is 12 V.

Can ER2 distinguish between thermal overload and undervoltage lockout?

Yes. ER2 remains high during normal operation. When a fault occurs, ER2 stays high for undervoltage lockout (VS < 4.8 V) but goes low for thermal overload (T_j > 150 °C) or short circuit. This allows microcontrollers to log fault type without reading internal registers - critical for ASIL-B diagnostic coverage in automotive safety systems.

What is the minimum recommended PCB layout practice for thermal management?

Mount the PG-DSO-20 package on a 6 cm² copper pour with ≥6 thermal vias (0.3 mm diameter, 1 mm pitch) connecting top-layer copper to inner/ground planes. Maintain ≥0.5 mm clearance from GND pour to avoid parasitic capacitance on high dv/dt nodes (GHx, SHx). Place bootstrap capacitors within 3 mm of BHx/SHx pins to minimize loop inductance.