Monolithic Power Systems (MPS) EV6631B-L-00A Driver Evaluation Board
Monolithic Power Systems (MPS) EV6631B-L-00A Driver Evaluation Board is designed to demonstrate the capabilities of the MP6631B, a 3-phase brushless DC (BLDC) motor driver with integrated power MOSFETs. The MP6631B drives a 3-phase BLDC motor with one or three external Hall sensors. It can achieve a peak phase current of up to 3A across the 3.6V to 35V input voltage (VIN) range.
The MP6631B controls the motor speed through pulse-width modulation (PWM) or the DC signal on the PWM/DC pin. The device provides closed- and open-loop control and a built-in, configurable speed curve function. It also features a sinusoidal drive for maximum torque, low-speed ripple, and noise across the entire speed range.
The Monolithic Power Systems (MPS) MP6631B features rotational speed detection. The rotational speed detector (the FG/RD pin) is an open-drain output. FG/RD outputs a high or low voltage relative to the Hall sensor comparator’s output. In addition to rotational speed detection, the direction is controlled via the DIR pin’s input.
Protection features include input over-voltage protection (OVP), under-voltage lockout (UVLO), locked-rotor protection, over-current protection (OCP), and thermal shutdown. The MP6631B is available in a QFN-26 (3mm x 4mm) package.
Features
- 3.6V to 35V operating input voltage (VIN) range
- Up to 3A of peak phase current
- Supports 0V to 1.2V DC input or 1kHz to 100kHz Pulse-Width Modulation (PWM) input
Applications
- Fans
- General three-phase Brushless DC (BLDC) motors
- Pumps
Board Layout
Related BLDC Motor Driver
Monolithic Power Systems (MPS) MP6631B 3-Phase BLDC Motor Driver
Driver supports a single external Hall-effect sensor or triple external Hall-effect sensors.