TC80310FS, Alternator Regulator with LIN

Analog, Mixed Signal and Power Management
TC80310
Alternator Regulator with LIN
Applications
TC80310 Simplified Application Drawing
• Light Vehicle
• Motorcycle
• System in a Die Alternator
Overview
The TC80310 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.
The TC80310 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.
1.5 μF/2.2 μF
Stator
B+A
PH1
LIN
PH2
SGND
EXC GND
TC80310
Rotor
Coil
Battery
+
-
Alternator
Performance
Typical Value
RDSON Field TMOS at lexc = 5.0 A and TJ = 140 °C
80 mΩ
Maximum EXC current at TJ = 25 °C
Quiescent current at TJ = 25 °C with phases = 0
EXC short-circuit protection
Operating Voltage
ESD (HBM)
Junction Operating Temperature
8.0 A
<110 μA
9.0 A
8.0 V ≤ VB + A ≥ 27 V
±6.0 kV (except phase inputs at ±5.0 kV)
-40 °C ≤ TJ ≥ 150 °C
Features
• Integrated high side excitation driver (field)
• Internal freewheeling diode
Protection
Protection
Detect
Auto Retry
Status Reporting EXC Shutdown
• Rotor excitation coil up to 8.0 A
Over-voltage
•
•
• Load response control (LRC)
Load Dump
•
•
Over-temperature,
Level 1
•
•
Over-temperature,
Level 2
•
•
EXC Short-circuit
•
•
LIN Over-current
•
•
• Thermal protections
• Thermal compensation
• Robust LIN 1.3 interface
• Selectable regulation voltage from 10.6 V
up to 16 V (programming at Freescale)
• Rotor control and die temperature
monitoring via LIN communication
• Self-start operation available (in case of
LIN disconnection)
Ordering Information
• Multiple adjustments capability for Loop
regulation (internal ramp, digital filter)
Device
Benefits
TC80310AWS
• Reduces voltage regulation at high
temperature to avoid thermal runaway
• Configurable product option to ease selfstart at 4000 RPM
• Inhibit by LIN communication the excitation
current on system demand
• Specific LIN conformance item
• 0 ppm target performance improvement
•
•
•
Temperature range (TA)
Package
-40 °C ≤ TJ ≥ 150 °C
Die
TO3 - Contact sales for information on limited engineering sample quantities. Production
version is die sales only.
Documentation
Document
Number
Title
Description
TC80310
Data Sheet
Alternator Regulator with LIN
AN4289
Application Note
LIN Alternator Regulator Devices
• Enhance fault reporting
• Improved system on chip robustness
against alternator harsh environment
PH2
• Improvement of stability and accuracy in
specific application mode
BUS
PH1
B+A
SGND
Questions
• Does your customer need to manage the
energy generation of the car?
PGND
EXC
• Are you using a LIN interface in the car
platform?
6.08 mm X 5.05 mm = 30.7 mm2
• Do you have a plan to reduce CO2
emissions?
• Do you have space constraints for
alternator / regulator applications?
• Do you need more accurate torque
management between the engine and the
alternator?
Contact Sales for information on limited engineering samples
• Are you or your customer challenged to
meet governmental CO2 regulations?
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© Freescale Semiconductor, Inc., 2011. All rights reserved.
Document Number: TC80310FS, Rev 1.0, 5/2011