STEVAL-L99MH98

STEVAL-L99MH98 Evaluation Board

STMicroelectronics STEVAL-L99MH98 Evaluation Board is a low-cost tool designed to evaluate the L99MH98 smart power device in a VFQFN48L package with an exposed pad. The L99MH98 is an integrated octal half-bridge pre-driver dedicated to controlling up to sixteen N-channel MOSFETs. The pre-driver is intended for DC motor control applications such as automotive power seat control or other applications. A 24-bit serial peripheral interface (SPI) is used for configuring and controlling the eight half-bridges or four H-bridges. SPI status registers provide high-level diagnostic information such as supply voltage monitoring, charge pump voltage monitoring, temperature warning, and overtemperature shutdown. Each gate driver independently monitors the correlating external MOSFET drain-source voltage for fault conditions. The L99MH98 supports indirect current measurement on external MOSFETs, allowing cost savings and lower system complexity, avoiding the usage of shunt resistors.