MP6505-SINGLE-PHASE, BRUSHLESS-DC–MOTOR DRIVER

MP6505 Rev.1.0

www.MonolithicPower.com

4

3/14/2012

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© 2012 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

(TSSOP16)

Pin #

(QFN16)

Name

Description

1,16

13,15

P-GND

Power Ground.

2

16

OUT1

Motor Driver Output 1.

3

14

VCC

Power Supply.

4

1

RMI

Minimum Rotational Speed Set.

5

2

VTH

Rotational Speed Control. Use DC voltage or PWM signal.

6

3

COSC

Oscillator Setting. Connect this pin to an external capacitor to set the

switch frequency.

7

4

FG

Rotational Speed Detector. Connect to an external power source through

a pull-up resistor.

8

5

RD

Locked-Rotor Protection Detector. Connect to an external power source

through a pull-up resistor.

9

6

IN+

Hall Sensor Input+. For rotor position detection and current limit setting.

10

7

HB

Hall Sensor Bias Regulator Output. Powers the external Hall sensor.

11

8

IN-

Hall Sensor Input-. For rotor position detection and current limit setting.

12

9

VREF

Reference Voltage Output.

13

10

CT

Locked-Rotor Protection and Recovery Time Set. Connect to an external

capacitor to set the recovery time.

14

11

S-GND

Ground for Control Circuit.

15

12

OUT2

Motor Driver Output 2.

Exposed

Pad

NC

Not Connected. Connect exposed thermal pad to power ground for better

thermal performance.