Infineon Technologies TLE4209AHKLA1

Overview

TLE4209AHKLA1 from Infineon is a fully protected bipolar H-bridge DC motor driver IC designed for automotive headlight beam control and industrial servo positioning systems. It delivers up to 0.8 A output current, features programmable hysteresis and deadband via external resistors, includes internal clamp diodes, and operates within 8–18 V supply range with thermal shutdown at 150 °C.

For engineers reviewing the TLE4209AHKLA1 datasheet, TLE4209AHKLA1 pinout, TLE4209AHKLA1 application in headlight actuation or servo loop control, or TLE4209AHKLA1 equivalent for automotive motor interface design, this page provides verified functional specifications, validated package mapping, confirmed protection features, and real-world implementation context.

Technical Context

The TLE4209AHKLA1 implements a dual-channel bipolar H-bridge using Infineon's DOPL high-voltage bipolar technology, enabling bidirectional motor control without external flyback diodes. Its internal window comparator monitors FB and REF inputs to enforce closed-loop position accuracy, while programmable HYST and RANGE pins configure hysteresis width (3–5% of VS) and deadband (0.4–1.2% of VS).

Fault response is deterministic: short-circuit-to-GND, short-circuit-to-VS, or open-load conditions trigger immediate brake mode (both outputs disabled), supported by overvoltage lockout (17.5–20 V turn-off), undervoltage lockout (6.3–6.9 V turn-off), and thermal shutdown with 30 K hysteresis.

Key Specifications

Pinout & Package

Supplied in P-DIP-8-4 (Plastic Dual In-line Package, 8-pin, 400 mil width), with creepage/clearance compliant for automotive 12 V system isolation requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BD6211F-E2 and VNQ5E050AKTR-E, the TLE4209AHKLA1 uniquely integrates analog servo loop configuration (HYST/RANGE/REF), internal clamps, and deterministic brake-mode fault response-making it irreplaceable in automotive headlight and precision analog-positioning systems.

Availability

TLE4209AHKLA1 is available at Aetrix Electronics and suitable for automotive lighting modules, industrial servo actuators, HVAC flap controllers, and robotics joint drivers requiring stable component supply across extended production lifecycles.

Supply support for TLE4209AHKLA1 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 high-voltage bipolar and Smart Power technologies.

The TLE4209 product line targets analog-closed-loop motor control in harsh environments, emphasizing fault resilience, programmable servo parameters, and seamless integration with potentiometric or Hall-effect position sensors.

FAQ

What is the maximum allowable supply voltage for continuous operation?

The TLE4209AHKLA1 operates continuously within 8–18 V supply range. Its absolute maximum supply voltage is 45 V for <0.5 s transient events, but sustained operation above 18 V triggers overvoltage lockout (OV OFF at 20.5–23 V), disabling outputs until VS drops below 17.5–20 V.

How does the device respond to an open-load (broken wire) condition?

Upon detecting open-load via loss of expected current signature at OUT1/OUT2, the TLE4209AHKLA1 immediately enters brake mode-disabling both outputs to halt motor motion. This action is coordinated with the internal window comparator and occurs independently of UV/OV or thermal protection circuits.

Can the hysteresis and deadband be adjusted independently?

Yes. Hysteresis width (VHYW) is set by the HYST pin current relative to VS/2, while deadband (VDBW) is controlled by the RANGE pin voltage. Their respective thresholds (VHYH/VHYL and VDBH/VDBL) are independently programmable using external resistor networks tied to HYST, RANGE, and REF pins.

Is external heat sinking required for 0.8 A operation?

In P-DIP-8-4 package with R_thjA = 100 K/W, dissipating ~0.64 W (0.8 A × 0.8 V saturation) raises junction temperature by ~64 °C above ambient. At 85 °C ambient, T_j reaches ~149 °C-within spec but near thermal shutdown. Forced airflow or minimal copper pour is recommended for sustained 0.8 A use.