30566 – Injector Driver IC for Automotive Engine Control Unit (ECU) – High-Side Driver – Direct Drop-in Replacement

The 30566 is a monolithic high-side driver integrated circuit specifically designed for fuel injector actuation in automotive engine control units (ECUs).

This device provides a single high-side driver channel optimized for driving solenoid injectors in gasoline engine management systems. It delivers precise current control and fast demagnetization, ensuring accurate fuel injection timing for improved combustion efficiency and emissions control.

As a common wear-and-tear component on automotive computer boards, the 30566 frequently fails due to repeated thermal cycling, continuous high-frequency switching, and voltage spikes. Replacing this IC often restores full ECU functionality without the need for an expensive complete board replacement.

The chip integrates overtemperature protection, overcurrent shutdown, and short-circuit protection. Diagnostic feedback capabilities allow the main ECU microcontroller to monitor driver status. These built-in safeguards ensure reliable operation under extreme under-hood conditions, with a wide junction temperature range from -40°C to 150°C.

Its standard pinout is designed for straightforward soldering onto original PCB pads, making it a practical choice for professional ECU repair workshops and automotive electronics technicians. The device operates on standard 12V automotive electrical systems and supports PWM (pulse-width modulation) for precise injector timing control.

Whether you are repairing a faulty engine control module or maintaining an aftermarket ECU upgrade, the 30566 offers a durable and cost-effective solution for high-side injector drive applications.