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.

D1708 MS PC/N3097HA(II)/7037KI/6197TA,TS No.2252-1/5

Overview

The LB1663 series are 2-phase unipolar brushless motor (ex. DC brushless fanmotor) drivers.

Features

• Protection against motor lock and automatic return can be provided with a minimum number of external parts.

• The LB1663, LB1663M, LB1666 can be operated from either 12V or 24V power supply by changing an external resistor.

• Possible to connect a Hall element direct to the LB1663, LB1663M, LB1666.

• Built-in output transistors with output current 1.5A.

• Built-in rotation detect function (Drive mode : ‘‘L’’, Stop mode : ‘‘H’’).

• Built-in thermal shutdown.

• With radio noise reduction pin.

Specifications

Absolute Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum input current

ICC max

t

≤ 20ms

200

mA

Output supply voltage

VO max

-0.3 to +85

V

Maximum output current

IO max

1.5

A

RD flow-in current

IRD

10

mA

RD supply voltage

VRD

50

V

LB1663

1.2

W

LB1663M : Independent IC

0.9

W

LB1663M : *With specified board

1.2

W

Allowable power dissipation

Pd max

LB1666

2.0

W

Operating temperature

Topr

-30 to +80

°C

Storage temperature

Tstg

-55 to +125

°C

* Specified board : 20mm

× 30mm × 1.5mm, glass epoxy

Monolithic Digital IC

2-Phase Unipolar

Brushless Motor Drivers

Ordering number : EN2552E

LB1663

LB1663M

LB1666