LB1875 Datasheet, PDF (1/17 Pages) Sanyo Semicon Device – Polygon Mirror Motor Predriver IC

Ordering number : EN6002
LB1875
Monolithic Digital IC
LB1875
Polygon Mirror Motor Predriver IC
Overview
The LB1875 is a predriver IC for polygon mirror
motors. By using a driver array or discrete transis-
tors (FETs) at the output, motor drive with high
rotation precision is possible. PAM drive or direct
PWM drive can be selected for the output to realize
high-efficiency control with minimum power loss.
Package Dimensions
unit: mm
3235-HSOP36
[LB1875]
17.9
6.2
2.7
36
Features
• Three-phase bipolar drive
• Direct PWM drive (bottom side) or PAM drive selectable
• PLL speed control circuit
• PWM oscillator
• Quartz oscillator
• Frequency divider
• FG with Schmitt comparator
• FG input single edge, dual edge selector circuit
• Integrating amplifier
• Phase lock detector output
• Current limiter
• Motor lock protection
• Thermal protection
• Forward/reverse circuit
• 5V regulator output
1
0.55
0.8
0.3
0.25
SANYO : HSOP36
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 Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D0898RM(KI) No. 6002-1/17