STMICROELECTRONICS EVLDRIVE102H

EVLDRIVE102H is a STDRIVE102H evaluation board for three-phase brushless motors. The power stage uses a single shunt topology: the current sensing and the overcurrent protections are implemented using one operational amplifier and one comparator embedded in the STDRIVE102H. The embedded protections of the STDRIVE102H, such as the UVLO on the driving voltage and the VDS monitoring for each power MOSFET, ensure a safe driving operation of the power stage. The EVLDRIVE102H evaluation board is thermally protected by exploiting both the hardware thermal shutdown protection embedded in the STDRIVE102H and also an onboard NTC sensor placed close to the power stage. The NTC is connected to the second comparator embedded in the STDRIVE102H, thus implementing a second hardware protection according to the power stage temperature. The nFAULT diagnostic pin of the STDRIVE102H, is connected to the control board and to an LED indicator, which lights on whenever a protection is triggered.