MP6517

Programmable Single-Phase, BLDC,

Motor Driver with Integrated

Hall Sensor

MP6517 Rev.1.01

www.MonolithicPower.com

1

4/9/2018

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© 2018 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP6517 is a single-phase, brushless, DC

motor driver with integrated power MOSFETs

and a Hall effect sensor. The MP6517 drives

single-phase, brushless, DC fan motors with up

to 1.2A of output current limit. The IC has a

3.3V to 18V input voltage range and input line

reverse voltage protection to save the external

diode on the supply line.

The MP6517 controls the rotational speed

through the PWM signal on the PWM pin. The

MP6517 has a rotational speed detector feature

and rotor lock fault indication on FG/RD with an

open-drain collector output. The output speed

versus the input duty curve can be programmed

easily for flexible use. To reduce fan driver

audible noise and power loss, the MP6517

features a soft on/off phase transition and

automatic phase-lock function of the motor

winding BEMF and current.

Full protection features include input over-

voltage protection (OVP), under-voltage lockout

(UVLO), rotor deadlocked protection, thermal

shutdown, and input reverse protection.

The MP6517 requires a minimal number of

external components to save solution cost. The

MP6517 is available in a TSOT23-6 package.

FEATURES

 Embedded Hall Sensor with High Sensitivity

 Wide 3.3V to 18V Operating Input Range

 Up to 1.2A Programmable Current Limit

 Integrated Power MOSFETs: Total 850mΩ

(HS + LS)

 Programmable Speed Curve

 Automatic Phase Lock Detection of Winding

BEMF and Current Zero-Crossing

 Soft On/Off Phase Transition

 Rotational Speed Indicator FG Signal

 12kHz to 48kHz PWM Input Frequency

Range

 Fixed 26kHz Output Switching Frequency

 Input Line Reverse Voltage Protection (RVP)

 Rotor Deadlocked Protection and Automatic

Recovery

 Thermal Protection and Automatic Recovery

 Built-In Input OVP, UVLO, and Automatic

Recovery

 Available in a TSOT23-6 Package

APPLICATIONS

 CPU Fan for Personal Computers or

Servers

 Brushless DC Motors

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For

MPS green status, please visit the MPS website under Quality

Assurance. “MPS” and “The Future of Analog IC Technology” are registered

trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION