Monolithic Power Systems (MPS) MP6543H Brushless DC Motor Drivers
Monolithic Power Systems (MPS) MP6543H Brushless DC Motor Drivers are 22V, 2A 3-phase power stages. The MP6543H Motor Drivers each integrate three half-bridges consisting of six N-channel power MOSFETs, as well as pre-drivers, gate drive power supplies, and current-sense amplifiers. These devices are available in three variants. The MP6543H has Enable (EN) and PWM inputs for each half-bridge. The MP6543H-A has separate High-Side (HS) and Low-Side (LS) inputs. The MP6543H-B has Hall-effect sensor inputs.
The MP6543H Motor Drivers deliver up to 2A of continuous current (depending on thermal and PCB conditions) with an adjustable over-current protection (OCP) threshold. These devices use an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs and a trickle charge circuit to maintain a sufficient gate drive voltage to operate at a 100% duty cycle.
Internal safety features include thermal shutdown, under-voltage lockout (UVLO), and over-current protection (OCP).
The Monolithic Power Systems (MPS) MP6543H Brushless DC Motor Drivers are available in a QFN-24 package with an exposed pad for enhanced thermal performance.
Features
- 3V to 22V operating supply voltage
- Three integrated half-bridge drivers
- 2A continuous output current
- MOSFET on resistance: 110mΩ per FET
- Available in three variants
- MP6543H: EN and PWM inputs
- MP6543H-A: LS and HS inputs
- MP6543H-B: Hall-effect sensor inputs
- Built-In 3V, 100mA LDO regulator
- Internal charge pump supports 100% duty cycle operation
- Automatic synchronous rectification
- Under-voltage lockout (UVLO) and thermal shutdown protection
- Over-current protection (OCP) with adjustable threshold
- Integrated bidirectional current-sense amplifiers
- -40°C to +125°C operating temperature range
- 3mm x 4mm QFN-24 package
Applications
- 3-phase brushless DC motors
- Permanent magnet synchronous motors
- Drones
- Robotics
Development Tools
Monolithic Power Systems (MPS) EV6543H Motor Driver Evaluation Boards
Demonstration and development platform for the MP6543H Brushless DC Motor Drivers
Related Products
Monolithic Power Systems (MPS) MP6543 2A 3-Phase Brushless DC Motor Drives
12V, 2A 3-phase power stages with integrated half-bridges, pre-drivers, and current sense amps.
Typical Application Circuit
Block Diagram
Pin Designations
Package Outline
