AR6000: Alternator Regulator with LIN

Overview

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.
Keeps the battery at its nominal charge and delivers current to electrical devices within the vehicle.
Interface for the standard LIN protocol (1.3 or 2.1) to allow an ECU to control the regulated voltage and the LRC rate among other parameters.
The ECU also can read back information about the status of the regulator and the alternator via LIN.
Can be programmed for most functions using OTP (Fuses) and fits a large number of alternators and applications

The AR6000 devices are configurable with One Time Programmable (OTP) options described in Table 55. For easy design-in, contact your local NXP sales representative to receive limited engineering samples in the TO-220 package configured to your system requirements.

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Features

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 interface 1.3 or 2.1
Setpoint voltage selectable from 10.6 to 16 V
Advanced safety function to prevent battery overvoltage
Accurate rotor current measurement, die temperature, alternator speed and battery voltage reported by LIN

MoreLess

Features

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 interface 1.3 or 2.1
Setpoint voltage selectable from 10.6 to 16 V
Advanced safety function to prevent battery overvoltage
Accurate rotor current measurement, die temperature, alternator speed and battery voltage reported by LIN