MP6651

2A, Single-Phase Brushless DC Driver with Integrated Hall Sensor

Datasheet

Description

The MP6651 is a single-phase brushless DC (BLDC) motor driver with integrated power MOSFETs and a Hall-effect sensor. The input voltage (V_IN) range is between 3.3V and 18V.

The motor speed is controlled by the input pulse-width modulation (PWM) duty from the PWM pin. The MP6651 features configurable soft-on/soft-off commutation. It also features a Hall offset angle across the entire speed range for improved low-speed and high-speed performance.

The MP6651 provides rotational speed detection. The rotational speed detector (FG/RD) is an open-drain output. It outputs a high or low voltage relative to the internal Hall comparator’s output. The FG/RD pin can also be configured for rotor-lock indication.

Full protection features include input over-voltage protection (OVP), under-voltage lockout (UVLO) protection, locked-rotor protection, over-current protection (OCP), and thermal shutdown.

The MP6651 is available in a straight-lead SOIC-8 package and a QFN-10 (2mmx3mm) package.

Features & Benefits

On-Chip Hall Sensor
Wide 3.3V to 18V Operating Input Voltage (V_IN) Range
2A Continuous Current with QFN-10 Package
5A Continuous Current with SOIC-8 SL Package
Integrated Power MOSFETs
Configurable Starting Duty Cycle
Configurable Minimum Output Duty Cycle
Configurable Soft-On/Soft-Off Commutation Angle (45° Max)
Configurable Hall Offset Angle (±45° Max)
Four-Step Configurable Current Limit (I_LIMIT)
2kHz to 100kHz Pulse-Width Modulation (PWM) Input Range
4s to 19.2s Configurable Soft-Start Time
27kHz Fixed Output Switching Frequency (f_SW)
Rotor Lock Protection with Auto-Recovery
Thermal Shutdown with Auto-Recovery
Built-In Input Over-Voltage Protection (OVP) and Under-Voltage Lockout Protection (UVLO) with Auto-Recovery
Available in SOIC-8 SL and QFN-10 (2mmx3mm) Packages