LB1875

No. 6002-1/17

LB1875

Polygon Mirror Motor Predriver IC

Monolithic Digital IC

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

Overview

SANYO : HSOP36

[LB1875]

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

D0898RM(KI)

Ordering number : EN6002

SANYO Electric Co., Ltd. Semiconductor Business Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

6.2

36

1

0.8

17.9

2.7

0.3

0.25

0.55

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.