LB1981V Datasheet, PDF (1/9 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver

Ordering number : ENN5917
LB1981V
Monolithic Digital IC
LB1981V
Three-Phase Brushless Motor Driver
Overview
The LB1981V is a three-phase brushless motor driver
especially suited for use mainly with drum motors of
portable VCRs.
Features
• Three-phase full-wave drive brushless sensorless motor
drive
• Soft switching drive
• Power-saving speed control function due to motor
voltage
• Use with 3V power supply possible
• Output residual voltage can be set in 4 ways
• Forward/reverse switching possible
• Built-in standby function (FG and PG amplifier only
remain operative)
• Built-in braking circuit
• Built-in thermal shutdown circuit
• Built-in FG and PG amplifiers
• Built-in saturation prevention amplifier and midpoint
control circuit
Package Dimensions
unit: mm
3191-SSOP30
[LB1981V]
30
16
1
15
0.15
9.95
0.22
0.65
0.43
SANYO : SSOP30
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Power supply voltage
Applied output voltage
Applied input voltage
Output current
Allowable power dissipation
Symbol
Conditions
V_CC1 max
V_CC2 max
V_S max
V_O max
V_IN1 max
V_IN2 max
I_O max
Pd max
Control circuits
U, V, W, COM
Operating temperature
Topr
Storage temperature
Tstg
Ratings
Unit
7
V
12
V
V_CC2
V
V_S+2
V
–0.3 to V_CC1+0.3
V
V_S+2
V
1.0
A
0.5 W
–20 to +75 °C
–55 to +150 °C
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(KI) No. 5917-1/9