LB1981V データシートの表示（PDF） - SANYO -> Panasonic

部品番号

コンポーネント説明

メーカー

LB1981V

Three-Phase Brushless Motor Driver

SANYO -> Panasonic 

Continued from preceding page

Pin number Pin name Pin voltage

23

BFG0

LB1981V

50µA

Equivalent circuit

50µA

30kΩ

VCC1

23

Pin function

Motor counterelectromotive

voltage FG pulse pin.

Outputs a pulse using W

phase counterelectromotive

voltage as FG.

Connect to ground if not used.

24

GND

25

WIN

26

UIN

27

VIN

28

COM

29

WOUT

1

UOUT

2

VOUT

30

RF

A10872

VCC2

25

26

200Ω

27

2kΩ

10µA

200Ω

28

200Ω

A10873

Ground for all circuits except

output.

Coil waveform detect

comparator input pins.

Motor coil midpoint input pin.

Using this voltage as a

reference, the coil voltage

waveform is detected.

W phase coil output pin.

U phase coil output pin.

VS

V phase coil output pin.

3.9Ω

29 1 2

3.9Ω

VCC1

30

A10874

Output transistor ground.

Constant current drive is

performed by detecting the

voltage at this pin.

No. 5917-7/9

Share Link: