The MP6540H and MP6540HA are three-phase brushless DC motor drivers. These devices integrate three half-bridges consisting of six Nchannel power MOSFETs, pre-drivers, gate drive power supplies, and current-sense amplifiers.
The MP6540H has enable (EN) and PWM inputs for each half-bridge, while the MP6540HA has separate high-side and low-side inputs. Otherwise, both parts are identical. References to the MP6540H in this document also apply to the MP6540HA, unless otherwise noted.
The MP6540H can deliver up to 6A of peak current and 5A of continuous output current, based on thermal and PCB conditions. The MP6540H uses an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs, and a trickle charge circuit that maintains sufficient gate drive voltage to operate at 100% duty cycle.
Internal safety features include thermal shutdown, under-voltage lockout (UVLO), and over-current protection (OCP).
The MP6540H is available in a QFN-26 (5mmx5mm) package.
Full integration eliminates external FETs and reduces solution size
Internal current sense
Highest output current possible in a 5mmx5mm package (recommended 6A output current, and 5A continuous current)
Lower solution cost
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The EV6540H-U-00A is an evaluation board for the MP6540HGU, a three-phase BLDC motor driver.
It operates from a supply voltage of up to 50V. It integrates three half-bridges consisting of 6 N-channel Power MOSFETs. The rotor position information is provided by the Hall sensors assembled in the motor and the driving control signals are generated by the external controller, such as MCU, FPGA, etc.