Document Number: TC80310
Rev 3.0, 8/2012
Freescale Semiconductor
Advance Information
Alternator Regulator with LIN
80310
The 80310 is an integrated circuit intended to regulate the output
voltage of an automotive alternator.
The IC 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.
AUTOMOTIVE ALTERNATOR
REGULATOR
The 80310 also provides a load response control mechanism
(LRC), and has an interface for the industry standard LIN protocol
(Revision 1.3) 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.
It can be programmed for most functions using OTP (Non-volatile
memory) and fit a large number of alternators and applications.
Features
• High side field driver
TOP VIEW
• Internal freewheeling diode
• Up to 8.0 A rotor current (excitation coil)
• Load response control (LRC)
• Thermal protection
• Thermal compensation
• LIN interface
ORDERING INFORMATION
Temperature
Device
Package
Range (T )
J
Devices part numbers are dependant on programming from
factory.
• Set point voltage selectable from 10.6 to 16 V
• Rotor control and die temperature monitoring via LIN
TO3 - Contact sales for information on limited engineering
sample quantities. Production version is die sales only.
1.5 μF/2.2 μF
Master
ECU
Stator
B+A
PH1
Diagnose
LIN
SGND
GND
Control
PH2
EXC
+
-
Battery
TC80310
Rotor
Coil
Alternator
Figure 1. 80310 Simplified Application Diagram (LIN Mode)
1.5 μF/2.2 μF
Stator
B+A
PH1
LIN
SGND
GND
PH2
EXC
+
Battery
TC80310
-
Rotor
Coil
Alternator
Figure 2. 80310 Simplified Application Diagram (Standalone, Self-start Mode)
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
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