LB1991V Datasheet, PDF (1/7 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver for Portable VCR Capstan Motors

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.
Functions
• 3-phase full-wave voltage drive technique (120°
voltage-linear technique)
• Torque ripple correction circuit (overlap correction)
• Speed control technique based on motor voltage and
current control.
• Built-in FG comparators
• Built-in thermal shutdown circuit
Package Dimensions
unit: mm
3175A-SSOP24
[LB1991V]
Ambient temperature, Ta — °C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Applied output voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_CC1 max
V_CC2 max
V_S max
V_O max
I_O max
Pd max
Topr
Tstg
Independent IC
Conditions
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Hall input amplitude
Symbol
V_CC1
V_CC2
V_S
V_HALL
V_CC1 ≤ V_CC2
Conditions
Between Hall effect element inputs
SANYO: SSOP24
Ratings
Unit
10
V
11
V
11
V
V_S + 2
V
1.0
A
440
mW
–20 to +75
°C
–55 to +150
°C
Ratings
2.7 to 6.0
3.5 to 9.0
Up to V_CC2
±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