MP6617 3.3-18V 18V, 6A Peak, 1-Phase BLDC Motor Driver QFN-10

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MP6617 3.3-18V 18V, 6A Peak, 1-Phase BLDC Motor Driver QFN-10

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MPS QFN-10 Power Management Motor Drivers & Controllers Motor

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MP6617 3.3-18V 18V, 6A Peak, 1-Phase BLDC Motor Driver QFN-10

The MPS MP6617 is a 18V, 6A Peak, 1-Phase BLDC Motor Driver. It operates from a 3.3 V to 18 V input, is rated for 6 A and switches at 27 kHz. It is supplied in a QFN-10 package.

The MP6617 is a single-phase brushless DC (BLDC) motor driver with integrated power MOSFETs and a Hall sensor.

Key Specifications

Part Number	MP6617
Function	18V, 6A Peak, 1-Phase BLDC Motor Driver
Input Voltage	3.3 V to 18 V
Current Rating	6 A
Switching Frequency	27 kHz
Interface	PWM
Package	QFN-10
Ordering Codes	MP6617, MP6617GQB-0000-Z

Features

3.3V to 18V Operating Input Voltage (VIN) Range
On-Chip Hall Sensor
Integrated 64mΩ HS-FET and LS-FET
60Hz to 100kHz PWM Input
Curve Configuration
Selectable Open-Loop or Closed-Loop Speed Control
Configurable Soft Acceleration Time
Power-Save Mode
27kHz Switching Frequency (fSW)
Configurable Current Limit Up to 6A

Typical Application Circuit

Applications

Servers Fans
Brushless DC (BLDC) Motors

Design Notes

Set dead time to match the external FET turn-off, not the datasheet typical. Too little risks shoot-through, too much distorts the current waveform at low duty cycle.
Use a Kelvin connection for the current-sense resistor; shared copper injects switching noise straight into the sense amplifier.
The thermal pad is the only heat path for most packages — via-stitch it to a ground plane with at least 9 vias.
PWM frequency trades switching loss against current ripple in the motor inductance; 20 kHz keeps the drive out of the audible band.
Add a brake or coast path so regeneration during a fast stop does not pump the supply rail.