LV8210W

No.7461-4/15

Pin Assignment

Pin Functions

Pin No.

Pin name

Function

1

RF1

Output current detection pin. The drive current is detected using the low resistance resistor inserted between this pin and

ground.

2

RF2

Output current detection signal input pin. Short-circuit this pin to RF1 pin (pin 1).

3

VS

Spindle motor drive power supply. Insert a capacitor between this pin and ground.

4

COM

Spindle motor common point connection.

5

CP

Charge pump stepped-up voltage pulse output. Insert a capacitor between this pin and CPC (pin 6).

6

CPC

Charge pump stepped-up voltage connection. Insert a capacitor between this pin and CP (pin 5).

7

VG

Charge pump stepped-up voltage output. Insert a capacitor between this pin and ground.

8

VCC

Power supply. Insert a capacitor between this pin and ground.

9

FG1

FG pulse output pin (MOS output).

Outputs a pulse signal equivalent to a one Hall sensor system pulse out put.

10

FG3

FG pulse output pin ( MOS output).

Outputs a pulse signal equivalent to a three Hall sensor system pulse out put.

11

FIL

Motor position detection comparator filter. Insert a capacitor between this pin and COMIN (pin 12).

12

COMIN

Motor position detection comparator filter. Insert a capacitor between this pin and FIL (pin 11).

13

VCO

VCO connection. Insert a capacitor between this pin and ground.

The VCO frequency follows the motor speed as indicated by the VCOIN pin voltage.

14

RMAX

VCO maximum frequency setting. Insert a resistor between this pin and ground.

Making the value of the resistor smaller increases the frequency.

Set the frequency so that the VCO oscillator frequency when the VCOIN pin voltage is VCC - 1V is over 48 times the switching

frequency at the maximum motor speed.

15

RMIN

VCO minimum frequency setting

Making the value of the resistor smaller increases the frequency.

Continued on next page.

LV8210W

NC

44

45

46

47

48

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

17

16

15

14

13

18

19

20

21

22

23

24

1

2

3

4

5

6

7

8

9

10

11

12

PGND3

OUT3R

VS3

MUTE

BRK

S/S

CF1

IN1

CF2

IN2

SGND

CF3

VCO

COMIN

FIL

FG3

FG1

VCC

VG

CPC

CP

COM

VS

RF2

RF1

UOUT

OUT3F

Top view