MP6631B

MP6631B

35V, 3A Peak Phase Current, Three-Phase BLDC Motor Driver

Datasheet

Description

The MP6631B is a three-phase, brushless DC (BLDC) motor driver with integrated power MOSFETs. The device supports a single external Hall-effect sensor or triple external Hall-effect sensors, with up to 3A of peak phase current and a 3.6V to 35V input voltage (V_IN) range. The device features a short soft start (SS) configuration for small-sized motors.

The MP6631B controls the motor speed through the pulse-width modulation (PWM) signal or the DC signal on the PWM/DC pin. It provides closed-loop and open-loop speed control, and a built-in configurable speed curve function. It also features a sinusoidal drive for maximum torque, as well as low speed ripple and noise across the full speed range.

The MP6631B features rotational speed detection. The rotational speed detector is an open-drain output via the FG/RD pin. It outputs a high or low voltage relative to the Hall comparator’s output. The motor direction is controlled via the DIR pin.

Rich 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.

Features & Benefits

3.6V to 35V Operating Input Voltage (V_IN) Range
Up to 3A of Peak Phase Current
Integrated 160mΩ High-Side MOSFETs (HS-FETs) and Low-Side MOSFETs (LS-FETs)
Sinusoidal Drive
Supports 0V to 1.2V DC Input or 1kHz to 100kHz Pulse-Width Modulation (PWM) Input
Supports Triple-Hall or Single-Hall Element Differential Input
Closed-Loop or Open-Loop Speed Control
Direction/Brake Input
Power-Save Mode (PSM)
0.5s/4.5s Lock Protection
Over-Current Protection (OCP)
Single-Pulse or Triple-Pulse FG Output per Electrical Cycle
Rotational Speed Indication via the FG/RD Pin
Soft Start (SS) for Low Noise and Current Overshoot
Available in a QFN-26 (3mmx4mm) Package

Active Part Numbers:

MP6631BGL-xxxx-Z MP6631BGL-xxxx-P MP6631BGL-0000-Z MP6631BGL-0000-P

Meaning of P & Z

Related Products

EV6631B-L-00A 35V, 3A Peak Phase Current, 3-Phase BLDC Motor Driver Evaluation Board

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 (V_IN) 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.

$60.00
+ tax