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PDF LB1981V Data sheet ( Hoja de datos )
| Número de pieza | LB1981V | |
| Descripción | Three-Phase Brushless Motor Driver | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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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
VCC1 max
VCC2 max
VS max
VO max
VIN1 max
VIN2 max
IO max
Pd max
Control circuits
U, V, W, COM
Operating temperature
Storage temperature
Topr
Tstg
Ratings
7
12
VCC2
VS+2
–0.3 to VCC1+0.3
VS+2
1.0
0.5
–20 to +75
–55 to +150
Unit
V
V
V
V
V
V
A
W
°C
°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
1 page  
Continued from preceding page
Pin number Pin name Pin voltage
11 PGOUT
LB1981V
VCC1
Equivalent circuit
30µA
30kΩ
11
Pin function
PG amplifier output pin.
12 PGC
13 PGIN 2.0V max
1.0V min
(VCC = 3V)
A10862
VCC1
6µA
1.5kΩ 75kΩ
10µA
10µA 200Ω
12 A10863
100kΩ
6µA
VCC1
500Ω
13
500Ω
PG amplifier peak hold
capacitor connection pin.
PG amplifier input pin.
Connect PG coil between this
pin and VREF.
14 VREF
15
FGIN
2.0V max
1.0V min
(VCC1 = 3V)
16 FGIN1
17 FGIN2
1.3V
A10864
VCC1
14
1.3V
35kΩ
70kΩ
Internal 1.3V reference
voltage.
Used as reference voltage for
FG and PG amplifiers.
A10865
VCC1
6µA
10kΩ
1.3V
200Ω 9kΩ 1kΩ
FG amplifier input pin.
Connect FG coil between this
pin and VREF.
FG amplifier input signal noise
filter capacitor connection pin.
17 16 15
A10866
FG amplifier input signal noise
filter capacitor pin.
Continued on next page
No. 5917-5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LB1981V.PDF ] | |
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