Infineon TLE52062GAUMA1: A Comprehensive Technical Overview of the 5A H-Bridge Motor Driver IC

The Infineon TLE52062GAUMA1 stands as a robust and highly integrated monolithic H-Bridge motor driver IC designed for the precise control of DC motors in a wide array of automotive and industrial applications. This device consolidates the necessary control logic, power stages, and protection features into a single, compact package, simplifying design and enhancing system reliability.

Engineered to handle a continuous output current of up to 5 Amperes and peak currents even higher, this driver is capable of controlling small to medium-sized DC motors with significant torque demands. Its operational voltage range, typically from 5.5 V to 40 V, makes it suitable for both 12V and 24V systems, commonly found in automotive environments for powering actuators, pumps, valves, and fans.

A key strength of the TLE52062-2G lies in its comprehensive suite of integrated protection features. These are critical for ensuring operational safety and longevity in harsh conditions. The IC includes:

Overcurrent Protection (OCP): Safely limits the output current to prevent damage to the IC and the motor during stall or overload conditions.

Overtemperature Protection (OTP): An internal temperature sensor shuts down the device if the junction temperature exceeds a safe threshold, reactivating only after it has cooled down.

Short-Circuit Protection: Protects against output shorts to ground or the supply voltage.

Undervoltage Lockout (UVLO): Disables the outputs when the supply voltage is too low, ensuring correct logic operation and preventing malfunction.

The device is controlled via a simple parallel CMOS/TTL-compatible interface, requiring just two input pins (IN1 and IN2) to select the motor's state: forward, reverse, brake, or high-impedance (free-running stop). This simplicity reduces the required GPIOs from a microcontroller. Two additional pins (EN1, EN2) allow for independent enabling of each half-bridge, offering further control flexibility. The status of the outputs is indicated by an open-drain error flag, which is activated in the event of a thermal shutdown or overcurrent condition, providing immediate feedback to the system controller.

Housed in a multi-watt-15 (PG-DSO-20) surface-mount package, the IC is designed for efficient power dissipation. The package features an exposed metal pad on the bottom that must be soldered to a sufficiently large copper area on the PCB to act as a heat sink, effectively transferring thermal energy away from the silicon die.

ICGOODFIND Summary: The Infineon TLE52062GAUMA1 is a highly reliable, all-in-one H-Bridge solution that excels in demanding automotive and industrial environments. Its robust 5A driving capability, combined with an extensive set of built-in protection mechanisms and a simple control interface, makes it an excellent choice for designers seeking to reduce component count while maximizing performance and system durability.

Keywords: H-Bridge Motor Driver, 5A Output Current, Integrated Protection Features, Automotive Grade, DC Motor Control.