MP6540 Overview
The MPS MP6540 is a fully integrated 3-phase brushless DC (BLDC) motor driver designed to simplify power stage design and reduce component count in compact motor drive systems. The MP6540 integrates three half-bridges — comprising six N-channel power MOSFETs — along with dedicated pre-drivers, an internal gate drive power supply, and three current sense amplifiers, all within a single QFN-26 (5.0mm × 5.0mm) package. This level of integration eliminates the need for external bootstrap capacitors on most rails and significantly reduces PCB area, making the MP6540 an attractive solution for cost-conscious, space-constrained designs in robotics, drones, and appliance motor control.
MPS has engineered the MP6540 for versatile PWM control flexibility. The standard MP6540 variant provides individual enable and PWM inputs for each half-bridge, while the MP6540A variant offers separate high-side and low-side inputs per phase — both are otherwise electrically and mechanically identical, allowing designers to select the control interface that best matches their microcontroller or motion control architecture. The device delivers 3A continuous output current and handles up to 10A peak current for one second, subject to thermal and PCB conditions. An internal charge pump generates the gate drive supply voltage for the high-side MOSFETs, and a trickle charge circuit ensures the gate drive voltage is maintained even at 100% duty cycle — a practical advantage for applications requiring sustained full-speed operation.
System robustness is ensured by a comprehensive protection suite: thermal shutdown, under-voltage lockout (UVLO), and over-current protection (OCP) are all integrated, reducing external protection component requirements and simplifying fault management firmware. The MP6540 operates across a wide supply voltage range of 5.5V to 35V, covering a broad range of battery-powered and DC bus applications. ABL Semi stocks the MP6540 as a fully authentic, original MPS factory product, available with flexible MOQ for both prototype evaluation and production volume procurement across the UK and Europe.
Key Specifications
| Parameter | Value |
|---|---|
| Device Type | 3-Phase Brushless DC (BLDC) Motor Driver |
| Operating Supply Voltage | 5.5V to 35V |
| Continuous Output Current (IOutput) | 3A |
| Peak Output Current (IPeak) | 10A (for 1 second) |
| Integrated Power Stage | 6× N-Channel MOSFETs (3 half-bridges) |
| Gate Drive Supply | Internal charge pump (high-side) + trickle charge (100% duty cycle capable) |
| Current Sense | 3× integrated current sense amplifiers |
| PWM Control Interface | Enable + PWM per half-bridge (MP6540) / High-side + Low-side inputs (MP6540A) |
| Protection Features | Thermal shutdown, UVLO, OCP |
| Package | QFN-26 (5.0mm × 5.0mm) |
Applications
The MP6540 is well-suited to battery-powered and DC bus motor drive applications requiring a compact, highly integrated 3-phase power stage. Primary application areas include gimbal motors, drone propulsion systems, robotic joint actuators, cordless power tools, and small industrial servo drives. The device is equally applicable in HVAC fan motor control, home appliance motors, and e-bike auxiliary drives, where its wide 5.5V–35V supply range, 10A peak current capability, and small QFN footprint enable efficient, cost-optimised motor drive designs.
Pin-to-Pin Compatible Alternatives
The MP6540’s QFN-26 (5×5mm) footprint and 3-phase half-bridge architecture are shared with several widely used BLDC motor driver ICs, enabling design engineers to evaluate the MP6540 as a direct cost-competitive replacement on an existing PCB without layout changes.
| Reference Part Number | Original Manufacturer | Why Choose MP6540 |
|---|---|---|
| DRV8313 | Texas Instruments | 3-phase BLDC gate driver in comparable QFN package; MP6540 integrates the power MOSFETs, eliminating the need for external FETs and reducing total BOM cost and component count |
| DRV8305 | Texas Instruments | 3-phase gate driver with current sensing in similar footprint; MP6540 consolidates gate driver and power stage into one IC, saving significant PCB area in compact designs |
| TMC6200 | Trinamic (Analog Devices) | 3-phase MOSFET pre-driver requiring external FETs; MP6540 offers a fully integrated alternative with internal power MOSFETs and 10A peak drive capability in a single package |
| L6234 | STMicroelectronics | 3-phase DMOS motor driver in larger SO-20 package; MP6540 delivers higher peak current (10A vs 5A) in a significantly smaller QFN-26 footprint for more compact motor drive designs |
Frequently Asked Questions
Is MP6540 RoHS compliant?
Yes. The MP6540 is fully RoHS compliant. MPS (Monolithic Power Systems) manufactures the MP6540 in accordance with EU RoHS Directive 2011/65/EU, ensuring the device is free from restricted hazardous substances including lead and mercury. ABL Semi supplies only authentic, original MPS factory products and can provide compliance documentation upon request.
What are the pin-to-pin replacements for MP6540?
The MP6540 is a functionally and footprint-compatible alternative to several popular 3-phase BLDC motor driver ICs, including the Texas Instruments DRV8313 and DRV8305, Trinamic TMC6200, and STMicroelectronics L6234, offering a fully integrated power stage that reduces external component requirements versus gate-driver-only solutions. Refer to the compatibility table above for a detailed comparison.
What is the minimum order quantity (MOQ) for MP6540?
ABL Semi offers flexible MOQ for MP6540, supporting both prototype quantities and mass production orders. Contact us for current stock and pricing.
What package options are available for MP6540?
The MP6540 is available in a QFN-26 (5.0mm × 5.0mm) package — a compact, thermally efficient surface-mount format that enables high power density motor drive PCB designs. The exposed thermal pad on the underside of the QFN package aids heat dissipation directly into the PCB copper, which is important for achieving the device’s full continuous current rating. Both the MP6540 and the MP6540A (alternate input configuration) variants are available in this same package. Contact ABL Semi to confirm current stock availability for each variant.
Does the MP6540 support PWM speed control for BLDC motors?
Yes. The MP6540 is designed for PWM-based speed and torque control of 3-phase BLDC motors. The standard MP6540 variant provides individual enable and PWM input pins for each of the three half-bridges, allowing the host microcontroller or DSP to apply PWM modulation to each phase independently — giving precise control over commutation timing and motor speed across the full operating range. The MP6540A variant alternatively provides separate high-side and low-side control inputs per phase, which suits control architectures where independent switching of each transistor is required. Both variants support PWM frequencies appropriate for motor drive applications, and the integrated current sense amplifiers provide real-time per-phase current feedback to the control loop.
For complete product specifications, please refer to: