LB1998 Datasheet

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LB1998

Sample Application Circuit

Control voltage

1 VCIN

Gain switching SW(0V or VCC1)

ROUT3 28

ROUT2 27

ROUT1 26

1/3 Hall FG switching

2 RIN1

Gain switching SW(0V or VCC1)

3 RIN2

Gain switching SW(0V or VCC1)

4 RIN3

Applying VCC1 to each pin

activates load between

ROUT-VCIN

S/S

FGSEL 25

FC 24

VCREF 23

WOUT 22

0.1碌F

0V or Open:1 Hall FG

:3 Hall FG

VCC1

5 SIG GND

6 S/S

0.1碌F

Control reference voltage

Brake mode switching

7 BRAKE

LB1998

PWR GND

PWR GND

FG output

8 FG

Reverse detection

VOUT 21

0.1碌F

UOUT 20

VCC2 19

RF 18

VCC1 17

0.1碌F

UIN2 16

UIN1 15

Hall

element

Power supply voltage

5V

9 RS

10 VH

11 WIN1

12 WIN2

0.033碌F

13 VIN1

14 VIN2

0.1碌F

Motor power supply voltage

12V

0.1碌F

0.033碌F

0.033碌F

A11195

No. 5979-6/9

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