MP6652

MP6652

18V, Single-Phase BLDC Motor Driver with Integrated Hall Sensor

Datasheet

Description

The MP6652 is a single-phase brushless DC (BLDC) motor driver with integrated power MOSFETs and a Hall-effect sensor. It drives a single-phase BLDC fan motor, with a 3V to 18V input voltage (V_IN) range.

The device controls the rotational speed via the pulse-width modulation (PWM) signal on the PWM pin. It also features a built-in, configurable speed curve function that is ideal for cooling fan applications, which require flexible speed curve control.

The MP6652 provides rotational speed detection. The rotational speed detector (the FG/RD pin) is an open-drain output. It outputs a high or low voltage relative to the internal Hall comparator’s output. Higher speeds produce higher frequency signals.

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

The MP6652 is available in TSOT23-6-SL and TSOT23-6-L packages.

Features & Benefits

On-Chip Hall Sensor
Wide 3V to 18V Operating Input Voltage (V_IN) Range
Integrated Power MOSFETs: Total 850mΩ High-Side MOSFET (HS-FET) and Low-Side MOSFET (LS-FET)
Configurable Starting Duty Cycle
Rotational Speed Indicator FG Signal
Locked Rotor Protection Fault Indication
1kHz to 100kHz Pulse-Width Modulation (PWM) Input Frequency Range
27kHz Fixed Output Switching Frequency (f_SW)
Configurable Soft-On/Off Commutation Angle (Max 90°)
Configurable Soft Start (SS)
Rotor Lock Protection with Auto-Recovery
FG Outputs 0.5x, 1x, or 2x Original Hall Frequency
Thermal Shutdown with Auto-Recovery
Built-In Input Over-Voltage Protection (OVP) and Under-Voltage Lockout (UVLO) Protection with Auto-Recovery
Available in TSOT23-6-SL and TSOT23-6-L Packages