The TLE9015DQU from Infineon Technologies is an Automotive Qualified General Purpose Transceiver IC that is designed for Li-ion battery packs to enable hybrid electric vehicles, plug-in hybrid electric vehicles, battery electric vehicles, and stationary Li-ion batteries. It requires an input voltage from 3 to 45 V. This BMIC supports the UART protocol to enable communication between the main host microcontroller and the cell supervision ICs which are usually connected to the battery module potential.

This AEC-Q100 qualified BMIC embeds an internal logic to minimize pin count on the UART side and an internal supply monitoring circuit to monitor and regulate the power delivered to the connected device. It ensures high robustness against external noise and connects a latching error output pin to detect errors and communicate them to the main microcontroller in a cell. This RoHS-compliant IC is available in a surface-mount package that measures 9 x 9 mm.