Ordering number : ENN6109A

81299RM (OT) No. 6109-1/17

Overview

The LB1987, LB1987D, LB1987M, and LB1987H are

optimal capstan motor drivers for use in VCR sets.

Functions

• Three-phase full-wave current-linear drive

• Torque ripple correction circuit (fixed correction ratio)

• Current limiter circuit with control characteristics gain

switching

• Oversaturation prevention circuits for both the upper and

lower sides of the output stage (No external capacitors

are required.)

• FG amplifier

• Thermal shutdown circuit

Package Dimensions

unit: mm

3240-QFP34H-B

3147B-DIP28H

3129-MFP36S-LF

3233-HSOP28H

1

14

28

15

0.6

27.0

20.0

R1.7

1.93

1.78

1.0

SANYO: DIP28H

[LB1987D]

0.25

15.3

118

36

19

0.85

0.4

0.8

SANYO: MFP36S-LF

[LB1987M]

6.2

28

15

114

0.8

15.3

2.7

0.3

0.25

0.85

SANYO: HSOP28H

[LB1987H]

34

16

7

17

18

23

24

13.2

10.0

0.8

4.8

1.0

1.6

4.0

0.2

SANYO: QFP34H-B

[LB1987]

LB1987, 1987D, 1987M, 1987H

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Three-Phase Brushless Motor Driver

for VCR Capstan Motors

Monolithic Digital IC

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.