TLE8881-3TN Alternator Control IC with LIN Interface
The device is based on Infineon’s power technology SPT which allows bipolar and CMOS control circuitry to be integrated with DMOS power devices on the same monolithic circuitry.
The battery voltage is regulated at a precise value between 10.6 V and 16 V. In case of communication loss, the regulator can proceed with the voltage regulation by using adjustable default values. A fixed frequency PWM voltage is set at an output pin to excite the excitation coil of the alternator.
The TLE8881-3 is equipped with special protection circuitry as well as circuitry to control the excitation voltage slew rate to reduce EMI. Therefore, the device meets the specific ESD and EMC requirement of the harsh automotive environment.
Zusammenfassung der Merkmale
• Excitation PWM duty cycle range from 0% up to 100%
• Full digital and fast PI regulator
• EEPROM for customization to the target application
• Digital temperature setpoint compensation
• Excitation current limitation depending on LIN commands
• Extensive voltage measurement range of 8 V up to 24 V
• Very low stand-by current of less than 80 μA @ 25°C
• High ESD resistivity of 8 kV on all lines (ESD HBM)
• High temperature range of -40°C up to 175°C
Vorteile
Easy switch:
• Assisting functions to simplify design-in into existing applications with MFC interface
• Compatible to existing Infineon LIN Alternator ICs (incl. same package pin-out)
• Compliant with various LIN generator-regulator specifications
Flexibility:
• LIN 1.3, LIN 2.1 and LIN 2.2
• Fully configurable LIN IDs and filters
• Enhanced EEPROM for customer specific adjustments
Safety:
• ISO 26262 Safety Element out of Context for safety requirements up to ASIL B
Potentielle Zielanwendungen
Voltage regulator for externally excited alternator/generator machine
