LB1987 Datasheet, PDF (1/17 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver for VCR Capstan Motors

Ordering number : ENN6109A
Monolithic Digital IC
LB1987, 1987D, 1987M, 1987H
Three-Phase Brushless Motor Driver
for VCR Capstan Motors
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
28
[LB1987D]
15
R1.7
1
20.0
14
27.0
1.93
1.78
0.6
1.0
3129-MFP36S-LF
36
[LB1987M]
19
SANYO: DIP28H
[LB1987]
13.2
1.6
10.0
23
4.8 ^{0.8 1.0}
18
0.2
24
17
34
1
7
6
4.0
SANYO: QFP34H-B
1
18
0.25
15.3
0.4
3233-HSOP28H
28
0.8 0.85 _{SANYO: MFP36S-LF}
[LB1987H]
15.3
6.2
2.7
15
1
0.85
14
0.25
0.8
0.3
SANYO: HSOP28H
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
81299RM (OT) No. 6109-1/17