Alternator Regulator

Infineon’s monolithic alternator regulator control ICs are designed for the voltage control of automotive 12V multi-phase alternators, an important component for automotive applications. The regulators are AEC-Q100 qualified and tailored to withstand the harsh conditions of the automotive environment. The standard LIN interface enables communication with an engine-management or energy-management ECU (LIN 1.3 / LIN 2.1 / LIN 2.2). By using free-adjustable parameters, the automotive alternator voltage regulators can continue to operate even without a communication interface.

The Infineon alternator voltage regulator IC family is compliant with various LIN regulator specifications (including VDA) and is therefore qualified and released by many original equipment manufacturers (OEMs). The output driver stage consists of a high-side DMOS for up to 12A excitation current and all products provide 8kV ESD protection. The EEPROM with adjustable parameters offers possible customization of the alternator to the specific OEM or application needs.