STMicroelectronics Evaluation Board Power Management for L9907 for L9907 Highly Integrated 3-Phase BLDC Motors

The EVAL-L9907 is designed to provide the user with a platform for the evaluation of the L9907 device. The Board provides all the main input/output capabilities necessary to drive a BLCD motor and provide also diagnostic functionalities. L9907 is fully integrated 3-phase pre-driver with integrated booster capable to drive all kind of Power MOS transistors in 3-phase BLDC motor applications up to 54 V. The integrated boost regulator provides sufficient gate charge to driver Power MOS down to 6 V. The circuit is suitable to operate in environments with high supply voltage such as double battery in 48V systems.L9907 is able to control independently the six pre-driver channels to implement all kind of electric motor control strategies, with the possibility to select among 4 gate output current levels while the application is running. All output channels are protected against short circuit.L9907 is equipped with 2 current sense amplifiers.