Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer

device, the customer should always evaluate and test devices mounted in the customer

equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

D0308 MS JM/71202RM(OT) No.7099-1/11

LB1929

Overview

The LB1929 is a 3-phase brushless motor driver well suited for drum and paper feed motors in laser printers, plain-paper

copiers and other office automation equipment. Direct PWM drive allows control with low power losses. Peripheral circuitry

including speed control circuit and FG amplifier is integrated, thus allows drive circuit to be constructed with a single chip.

Features

• 3-phase bipolar drive (30V, 3.5A)

• Direct PWM drive technique

• Built-in diode for absorbing output lower-side kickback

• Speed discriminator and PLL speed control

• Speed lock detection output

• Built-in forward/reverse switching circuit

• Built-in protection circuitry includes current limiter, overheat protection, motor restraint protection, etc.

Specifications

Absolute Maximum Ratings

at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

30

V

Maximum output current

IO max

T

≤ 500ms

3.5

A

Allowable power dissipation 1

Pd max 1

Independent IC

3

W

Allowable power dissipation 2

Pd max 2

With an arbitrary large heat sink

20

W

Operating temperature

Topr

-20 to +80

°C

Storage temperature

Tstg

-55 to +150

°C

Monolithic Digital IC

For Office Automation Equipment

3-phase Brushless Motor Driver

Ordering number : EN7099A