LB1924 Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – Power Brushless Motor Driver IC for Office Automation Equipment

Ordering number : ENN5687B
Monolithic Digital IC
LB1924
Power Brushless Motor Driver IC for Office
Automation Equipment
Overview
The LB1924 is a direct PWM drive output driver IC
appropriate for the power brushless motors used in office
automation equipment. It includes a speed control circuit,
an FG amplifier, and other peripheral circuits and allows a
drive circuit to be implemented with a single IC. It allows
the number of external components to be reduced by
including a lock protection circuit, a kickback absorption
diode for the lower output side, and other components on
chip.
Functions
• Breakdown voltage: 30 V, output current: 3.1 A
• Direct PWM drive output
• Speed discriminator + PLL speed control technique
• Crystal oscillator circuit
• Built-in FG and integrating amplifiers
• Forward/reverse switching circuit
• Speed lock detection output
• On-chip lower output side kickback absorption diode
• Full complement of built-in protection circuits,
including lock protection, current limiter, and thermal
protection circuits
Package Dimension
unit: mm
3147B-DIP28H
[LB1924]
28
15
R1.7
1
20.0
14
27.0
1.93
1.78
0.6
1.0
SANYO: DIP28H
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
73099TH (OT)/83097HA(OT) No. 5687-1/11