Overview
The MCP8049 is a Three-Phase Brushless Motor Gate Driver System Basis Chip (SBC) for brushless motor control, designed using advanced SOI technology. In combination with a microcontroller and six discrete power MOSFETs, the SBC forms a brushless DC motor control unit. Through six dedicated parallel inputs, the gate driver units (GDU) can be controlled independently, supporting duty cycle operations from 0% to 100%, due to the implementation of two charge pumps, for low and high-side gate drives. In addition, the circuit provides 5V and 3.3V low dropout voltage regulators, two current-sensing operational amplifiers, an integrated Back-EMF detection module and a window watchdog. The microcontroller controls the MCP8049 using an SPI interface.
To download the design files, please request them from the reference design page
• Input operating voltage range: 4.9V to 32.5V
• Maximum of 10/27Ω of gate drive sink/source resistance for external N-Channel MOSFETs and programmable LS/HS slew rate control: 12.5%, 25%, 50%, 100%
• Drives up to a 50A RMS BLDC motor
• Two programmable gain/offset current sense amplifiers
• ON/OFF push button (RUN)
• Reset push button (RST)
• Fault signal LED indicator
• PICkit™ debugger interface
• Terminal block for 3.3V and 5V Hall-effect sensors
• UVLO, OVLO and DUVLO protections
• Programmable external MOSFET short circuit protection 125 mV to 1.75V
• Programmable PWM dead-time protection 100 ns to 6.3 µs (100 ns step)
• Thermal shutdown protection
• Programmable timing filters for current and voltages
• Complete “C” source code (provided on the Motor Driver Evaluation Board webpage).
Documentation
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Document Category
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| EV61W02A - MCP8049 Brushless ESC Reference Design User Guide | User Guides | Download | ||
| MCP8049 ESC Reference Design (EV61W02A) EU REACH Statement | Certifications | Download | ||
| MCP8049 ESC Reference Design (EV61W02A) EU Declaration of Conformity | Certifications | Download | ||
| MCP8049 ESC Reference Design (EV61W02A) China RoHS Certificate | Certifications | Download | ||
| MCP8049 ESC Reference Design (EV61W02A) UK Declaration of Conformity | Certifications | Download |