LB1998

No. 5979-4/9

Truth Table

Pin Assignment

Brake Mode Switching Truth Table

Input:

H: Input 1 is higher in potential than input 2 by at least 0.2V.

L: Input 1 is lower in potential than input 2 by at least 0.2V.

BRAKE pin

L, OPEN

Foward

Reverse brake

H

Foward

Short brake

1

VCIN

28 ROUT3

2

RIN1

27 ROUT2

3

RIN2

26 ROUT1

4

RIN3

25 FGSEL

5

SIG GND

24 FC

6

S/S

PWR GND

23 VCREF

7

BRAKE

22 WOUT

PWR GND

8

FG

21 VOUT

9

RS

20 UOUT

10

VH

19 VCC2

11

WIN1

18 RF

12

WIN2

17 VCC1

13

VIN1

16 UIN2

14

VIN2

15 UIN1

A11194

Top view

LB1998

Hall input

Control

UV

W

Phase W –> Phase V

H

Phase V –> Phase W

L

Phase W –> Phase U

H

Phase U –> Phase W

L

Phase V –> Phase W

H

Phase W –> Phase V

L

Phase U –> Phase V

H

Phase V –> Phase U

L

Phase V –> Phase U

H

Phase U –> Phase V

L

Phase U –> Phase W

H

Phase W –> Phase U

L

1

2

3

4

5

6

H

H

H

H

H

H

H

H

H

L

L

L

L

L

L

L

L

L

Source –> Sink