The EV6631B-L-00A is an evaluation board 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 1 or 3 external Hall sensors. It can achieve a peak phase current up to 3A across the 3.6V to 35V input voltage (VIN) range.
The MP6631B controls the motor speed through the pulse-width modulation (PWM) signal, or through the DC signal on the PWM/DC pin. The device provides closed-loop and open-loop control and a built-in, configurable speed curve function. The device also features a sinusoidal drive for maximum torque, as well as low speed ripple and noise across the entire speed range.
The MPQ6631B 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 (3mmx4mm) package.
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