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.