Monolithic Power Systems

MP6543C 3-Phase BLDC Motor Driver

MPS' driver features three integrated half-bridges, consisting of six N-channel power MOSFETs, six pre-drivers, two gate driver power supplies, and three current-sense amps

Image of MPS' MP6543C 3-Phase BLDC Motor DriverMPS' MP6543C is a 3-phase brushless DC (BLDC) motor driver with three integrated half-bridges and consisting of six N-channel power MOSFETs, six pre-drivers, two gate driver power supplies, and three current-sense amps. Each half-bridge includes an enable (EN) input and a pulse-width modulation (PWM) input. The MP6543C can achieve a continuous output current (IOUT) of up to 1.2 A across the input voltage (VIN) range of 3 V to 22 V.

The internal current-sense circuit does not require a low-ohmic shunt resistor. Each half-bridge has an independent ground pin (LSSA, LSSB, and LSSC) that allows the current to be measured via an external shunt resistor, enabling the MP6543C suitable for different application requirements.

An internal charge pump generates the gate driver supply voltage for the high-side MOSFETs (HS-FETs). A trickle-charge circuit maintains a sufficient gate driver voltage for a 100% duty cycle operation.

Features
  • Operating VIN range: 3 V to 22 V
  • Continuous IOUT: 1.2 A
  • RDS(ON): 110 mΩ per MOSFET
  • Enable (EN) input and pulse-width modulation (PWM) input
  • Built-in low-dropout (LDO) regulator: 3.3 V, 100 mA
  • Internal charge pump for a 100% duty cycle
  • Automatic synchronous rectification
  • Integrated bidirectional current-sense amps
  • Configurable overcurrent protection (OCP)
  • Undervoltage lockout (UVLO) protection
Diagram

Image of MPS' MP6543C 3-Phase BLDC Motor Driver Diagram (click to enlarge)

MP6543C 3-Phase BLDC Motor Drivers

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
22V, 1.2A, THREE-PHASE BLDC MOTOMP6543CGL-Z22V, 1.2A, THREE-PHASE BLDC MOTO0 - ImmediateSee Page for PricingView Details
22V, 1.2A, THREE-PHASE BLDC MOTOMP6543CGL-P22V, 1.2A, THREE-PHASE BLDC MOTO14 - Immediate$3.07View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionTypeFunctionEmbeddedAvailable QuantityPriceView Details
EVAL BOARD FOR MP6543CEV6543C-L-00AEVAL BOARD FOR MP6543CPower ManagementMotor Controller/DriverNo2 - Immediate$61.23View Details
Published: 2023-09-20