LB1817M 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB1817M

FDD Spindle Motor Driver

SANYO -> Panasonic 

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Pin No. Symbol

21 FG+

Pin voltage

2.5V typ

22 FG–

LB1817M

Unit (resistance: Ω)

Equivalent circuit

Pin description

• FG amplifier positive pin.

• FG amplifier negative pin.

23 FG out

24 UOUT

25 UPB

26 VOUT

27 VPB

28

WOUT

29 WPB

30 UIN2

31 UIN1

32 VIN2

33 VIN1

34 W 2

IN

35 W 1

IN

36 HB

• FG amplifier output pin.

• U-phase output pin.

• Base connection pin for U-phase external

PNP.

• V-phase output pin.

• Base connection pin for V-phase external

PNP.

• W-phase output pin.

• Base connection pin for W-phase external

PNP.

• U-phase hall-effect input pin.

UIN1 > UIN2 is established when logic is at

an “H” level.

• V-phase hall-effect input pin.

VIN1 > VIN2 is established when logic is at

an “H” level.

• W-phase hall-effect input pin.

WIN1 > WIN2 is established when logic is at

an “H” level.

• Hall-effect bias applied to minus-side pin.

When stopped, switches open and hall-

effect bias severs.

No. 4355-7/9

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