LB1991V

No.5792-3/7

Package Dimensions

unit : mm (typ)

3175C

Pin Assignment

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

20

19

18

17

24

23

22

21

Top view

LB1991V

Truth Table

Hall input

Source phase

→ Sink phase

U

V

W

FRC

V

→ W

H

1

W

→ V

H

H

L

L

U

→ W

H

2

W

→ U

H

L

L

L

U

→ V

H

3

V

→ U

H

L

H

L

W

→ V

H

4

V

→ W

L

L

H

L

W

→ U

H

5

U

→ W

L

H

H

L

V

→ U

H

6

U

→ V

L

H

L

L

Note: The “H” entries in the FRC column indicate a voltage of 2.50V or higher, and the “L” entries indicate a voltage of 0.4V or lower. (When VCC1 is 3V.)

At the Hall inputs, for each phase a high-level input is the state where the (+) input is 0.02V or higher than the (

−) input. Similarly, a low-level input is the

state where the (+) input is 0.02V or lower than the (

−) input.

SANYO : SSOP24(275mil)

7.8

0.22

0.65

(0.33)

12

13

24

1

0.15

-20

0

20

40

60

80

100

0

0.5

0.4

0.3

0.2

0.1

Pd max -- Ta

0.44

0.264

75

Ambient temperature, Ta -- °C