L298HN

Full Half-Bridge (H Bridge) Drivers Overview

The L298HN is a dual full-bridge motor driver manufactured by STMicroelectronics, housed in a 15-lead Multiwatt package. It operates with a supply voltage range of 4.5V to 7V for logic and up to 46V for the load. The device delivers a total DC current of 4A across four output channels. It features overtemperature protection and supports external sensing resistors via connected lower transistor emitters.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrated high-voltage dual full-bridge architecture designed for standard TTL logic levels
• Independent enable inputs allow control of drive states separate from input signals
• Built-in overtemperature protection safeguards against thermal overload
• External terminals facilitate connection of sensing resistors for current monitoring

Full Half-Bridge (H Bridge) Drivers Applications

• Driving DC motors
• Controlling stepper motors
• Actuating relays
• Powering solenoids

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific package variant matches design requirements. Check for recent Product Change Notifications regarding packaging or material updates. Ensure compliance with relevant environmental standards such as RoHS before integration into final assemblies.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component for applications requiring robust H-bridge control with integrated thermal management. It suits designs needing independent channel enablement and compatibility with standard logic interfaces. Consider the Multiwatt package for through-hole mounting needs. Evaluate thermal dissipation requirements given the 25W power dissipation capability under specified conditions.

Full Half-Bridge (H Bridge) Drivers Part Context

The L298HN belongs to the L298 family of motor drivers, which are established solutions for driving inductive loads. This series provides a cost-effective approach for basic motion control tasks. The HN suffix typically denotes the Multiwatt-15 package variant, distinguishing it from other form factors within the same functional family offered by the manufacturer.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

The L298N is a direct pin-compatible alternative within the same product family. Verify that the substitute part meets all electrical and mechanical specifications required by the existing design constraints.