IRS20965STRPBF

Overview

The IRS20965STRPBF is a high voltage, high speed MOSFET driver with floating PWM inputs designed for Class D audio amplifier applications. It operates within a VCC range of 10V to 15V and supports up to ±100V ratings. The device provides independent HIN and LIN inputs for HO and LO control. Key electrical parameters include gate driver output currents (Io+) of 2.0 A and (Io-) of 2.0 A. Propagation delay is typically 120 ns, while the over-current protection delay is maximized at 500 ns. Shutdown delay is specified at a maximum of 250 ns.

Feature Summary

• Features programmable bidirectional over-current detection utilizing MOSFET RDS(ON) without external shunt resistors, accompanied by an over-current flag output that enables full external control over protection sequences.
• Incorporates internal shoot-through prevention logic to eliminate simultaneous ON states in output MOSFETs, ensuring safe operation during switching transitions.
• Supports independent high-side and low-side floating PWM inputs compatible with 3.3V or 5V logic, allowing flexible digital controller integration.

Applications

• Class D audio amplifier systems
• Half bridge converters with digital controllers

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status and check for specific industrial qualification requirements. Ensure ordering suffixes match required packaging formats. Review datasheet revisions for any updates to absolute maximum ratings or recommended operating conditions before finalizing procurement specifications.

Selection Notes

Select this driver for designs requiring high noise immunity and independent channel control. Evaluate thermal resistance and power dissipation limits under board-mounted conditions. Consider the 800 kHz operational frequency capability when designing filter components. Verify compatibility with the target MOSFET's gate charge requirements against the 2.0 A drive strength.

Part Context

This component belongs to the IRS20965 family of high-voltage integrated circuits manufactured by Infineon Technologies. It is packaged in a 16-lead SOIC format. The device represents a specialized solution for driving power stages in audio amplification and power conversion topologies where high voltage isolation and precise timing are critical.

Replacement Considerations

IRS20965SPBF is a confirmed substitute part number available in tube/bulk packaging instead of tape and reel.

FAQ

How does the IRS20965 detect over-current conditions?

It uses bi-directional current sensing based on the RDS(ON) of the MOSFETs to detect over-current conditions during both positive and negative load currents without requiring external shunt resistors.

What is the function of the OC pin?

The OC pin serves as an over-current warning output. It provides over-current status without shutting down the system, enabling full external control over over-current protection sequences.