Monolithic Power Systems Inc. EV6543HB-L-00A

Overview

EV6543HB-L-00A from Monolithic Power Systems is an evaluation board for the MP6543HGL-B three-phase brushless DC motor driver IC, supporting 3V–22V input, integrated 3.3V/100mA LDO, bidirectional current-sense amplifiers, and Hall-sensor-based commutation control for drone and robotics motor drives.

For engineers reviewing the EV6543HB-L-00A datasheet, EV6543HB-L-00A pinout, EV6543HB-L-00A application, or EV6543HB-L-00A equivalent, this board enables rapid validation of MP6543HGL-B operation under real-world BLDC motor control conditions including 100% duty cycle, OCP/OTP protection, and external MCU/FPGA timing interface.

Technical Context

The EV6543HB-L-00A implements a hardware reference platform for the MP6543HGL-B QFN-24 motor driver, with dedicated connectors for VIN (3–22V), VIN_LDO (3–22V), VCC (3.3V), VREF (3.3V), Hall sensor inputs, and six PWM/enable control signals via CN1.

It integrates six N-channel MOSFETs in three half-bridge configurations, supports Hall logic commutation per Table 1, and provides fault indication output, current-sense amplifier outputs (SOA/SOB/SOC), and NSLEEP control for power sequencing.

Key Specifications

Availability

EV6543HB-L-00A is available at Aetrix Electronics and suitable for drone propulsion systems, robotic joint actuators, and industrial BLDC motor control applications requiring stable component supply and validated reference design support.

Supply support for EV6543HB-L-00A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with expertise in motor drivers, DC/DC converters, and battery management solutions.

The EV6543HB-L-00A belongs to MPS's motor driver evaluation platform product line, designed to accelerate development of efficient, Hall-sensor-commutated three-phase BLDC systems for compact motion control applications.

FAQ

What is the primary function of the EV6543HB-L-00A?

The EV6543HB-L-00A is a dedicated evaluation board for the MP6543HGL-B three-phase BLDC motor driver IC. It provides all necessary power conditioning, signal interfaces (Hall, PWM, enable), current sensing, and protection circuitry to validate motor control firmware and hardware integration without custom PCB design.

Does the board include the MP6543HGL-B IC?

Yes - the EV6543HB-L-00A includes one pre-mounted MP6543HGL-B QFN-24 IC. The IC is soldered onto the board and fully integrated with gate drive circuitry, current-sense amplifiers, and protection logic as specified in the MP6543HGL-B datasheet.

Can the board operate without an external microcontroller?

No - the EV6543HB-L-00A requires external control signals (PWMA/PWMB/PWMC, ENA/ENB/ENC, DIR, nBRAKE) from an MCU or FPGA. It does not contain onboard processing; its role is purely to evaluate the MP6543HGL-B's analog/motor-drive functionality under user-supplied timing and logic commands.

What voltage rails must be supplied externally?

Four external supplies are required: VIN (3–22V for motor power), VIN_LDO (3–22V for LDO input), VCC (3.3V for logic), and VREF (3.3V for current-sense amplifier reference). All must be applied before enabling SW1 to avoid undefined behavior.

How is motor commutation controlled on this board?

Commutation is controlled via Hall sensor inputs (HA/HB/HC) connected to the dedicated 5-pin header, combined with direction (DIR) and brake (nBRAKE) signals. The MP6543HGL-B internally executes the commutation table shown in the quick-start guide, generating appropriate gate drive sequences for trapezoidal control.

Is the board RoHS-compliant and lead-free?

Yes - the EV6543HB-L-00A uses only RoHS-compliant, lead-free, and halogen-free components per MPS corporate policy. All passive components, connectors, and the MP6543HGL-B IC meet EU Directive 2011/65/EU requirements, verified through MPS's Quality Assurance program.