Ordering number : EN5792
Monolithic Digital IC
Overview
The LB1991V is a 3-phase brushless motor driver IC that
is optimal for driving the capstan motor in portable VCR
products.
• Speed control technique based on motor voltage and
current control.
• Built-in FG comparators
• Built-in thermal shutdown circuit
Functions
• 3-phase full-wave voltage drive technique (120°
voltage-linear technique)
• Torque ripple correction circuit (overlap correction)
Package Dimensions
unit: mm
3175A-SSOP24
[LB1991V]
Allowable power dissipation, Pd max — W
SANYO: SSOP24
Ambient temperature, Ta — °C
Specifications
Absolute Maximum Ratings
at Ta = 25°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
–20 to +75
–55 to +150
Unit
V
V
V
V
A
mW
°C
°C
Allowable Operating Ranges
at Ta = 25°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
≤
V
CC
2
Conditions
Ratings
2.7 to 6.0
3.5 to 9.0
Up to V
CC
2
±20 to ±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
SANYO [ SANYO SEMICON DEVICE ]
