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.

D2408 MS / 21003AS (OT) / 52199RM (KI) No.6088-1/10

LB1976

Overview

The LB1976 is a 3-phase brushless motor driver IC suited for use in direct PWM driving of DC fan motors for air

conditioners, water heaters, and other similar equipment. Since a shunt regulator circuit is built in, single power supply

operation sharing the same power supply for the motor is supported.

Features

• Withstand voltage 60V, output current 2.5A

• Direct PWM drive output

• 3 built-in output top-side diodes

• Built-in current limiter

• Built-in FG output circuit

Specifications

Absolute Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

VCC max

7V

Supply voltage

VM max

60

V

Output current

IO max

2.5

A

Maximum input current

IREG max

VREG pin

10

mA

Pd max1

Independent IC

3

W

Allowable power dissipation

Pd max2

With infinite hear sink

20

W

Operating temperature

Topr

-20 to +100

°C

Storage temperature

Tstg

-55 to +150

°C

Monolithic Digital IC

For Fan Motor

3-phase Brushless Motor Driver

Ordering number : EN6088B