UF2768

Preliminary

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

2 of 8

www.unisonic.com.tw



M ARK I N G

MSOP-10

DFN3030-10



PI N CON FI GU RAT I ON

1

FG

2

3

4

56

7

8

9

10

COM

UO

FR

WO

VO

GND

OSC

PWM

Top View

DFN3030-10

1

2

7

6

8

9

4

5

3

FG

PWM

GND

COM

OSC

UO

VO

FR

WO

MSOP-10

10

10



PI N DESCRI PT I ON

PIN No.

PIN NAME

Description

1

FG

Rotation Speed Output. This is an open-drain output.

2

COM

Motor Neutral Point Input Pin

3

Supply Voltage Input Pin.

4

UO

Driver Output Pin. Output signal for driving motor phase U.

5

FR

Motor Spin Direction Control Pin.

High Level Input: U

→ V → W

Low Level Input: U

→ W → V

6

WO

Driver Output Pin. Output signal for driving motor phase W.

7

VO

Driver Output Pin. Output signal for driving motor phase V.

8

GND

Ground Pin.

9

OSC

Start-up Commutation Time Setting. Connect a capacitor to GND to set start-up

commutation time.

10

PWM

PWM Signal Input Pin. Input PWM signal to control rotation speed.