NXP MC33AR6000BGWS

The AR6000 is an integrated circuit intended to regulate the output voltage of an automotive alternator. It supplies a current via a high - side MOSFET to the excitation coil of the alternator and provides an internal freewheeling diode. It keeps the battery at its nominal charge and delivers current to electrical devices within the vehicle. The IC provides a load response control mechanism (LRC), and has an interface for the industry standard LIN protocol (v 1.3 or 2.1) to allow an ECU to control the regulated voltage and the LRC rate among other parameters. The ECU can also read back information about the status of the regulator and the alternator via LIN. It can be programmed for most functions using OTP (fuses) and fits a large number of alternators and applications.

• High - side field driver
• Internal freewheeling diode
• Up to 12.0 A rotor current (excitation coil)
• Load response control (LRC) and return LRC
• Current limitation and overcurrent protection
• Thermal protection
• Thermal compensation
• LIN 2.1 physical layer
• Set point voltage selectable from 10.6 V to 16 V
• Accurate rotor current measurement, die temperature, alternator speed, and battery voltage reported by LIN

• Automotive alternators