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LB1991 Datasheet

  • LB1991

  • Three-Phase Brushless Motor Driver for Portable VCR Capstan ...

  • 181.75KB

  • 7頁

  • SANYO

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Ordering number : EN5792
Monolithic Digital IC
LB1991V
Three-Phase Brushless Motor Driver for Portable
VCR Capstan Motors
Overview
The LB1991V is a 3-phase brushless motor driver IC that
is optimal for driving the capstan motor in portable VCR
products.
鈥?Speed control technique based on motor voltage and
current control.
鈥?Built-in FG comparators
鈥?Built-in thermal shutdown circuit
Functions
鈥?3-phase full-wave voltage drive technique (120擄
voltage-linear technique)
鈥?Torque ripple correction circuit (overlap correction)
Package Dimensions
unit: mm
3175A-SSOP24
[LB1991V]
Allowable power dissipation, Pd max 鈥?W
SANYO: SSOP24
Ambient temperature, Ta 鈥?擄C
Specifications
Absolute Maximum Ratings
at Ta = 25擄C
Parameter
Symbol
V
CC
1 max
Maximum supply voltage
V
CC
2 max
V
S
max
Applied output voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
V
O
max
I
O
max
Pd max
Topr
Tstg
Independent IC
Conditions
Ratings
10
11
11
V
S
+ 2
1.0
440
鈥?0 to +75
鈥?5 to +150
Unit
V
V
V
V
A
mW
擄C
擄C
Allowable Operating Ranges
at Ta = 25擄C
Parameter
Symbol
V
CC
1
Supply voltage
V
CC
2
V
S
Hall input amplitude
V
HALL
Between Hall effect element inputs
V
CC
1
鈮?/div>
V
CC
2
Conditions
Ratings
2.7 to 6.0
3.5 to 9.0
Up to V
CC
2
鹵20 to 鹵80
Unit
V
V
V
mVp-p
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
53098RM (OT) No. 5792-1/7

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