Ordering number : ENA1773

Monolithic Digital IC

3-phase sensor less

Motor driver

LB11685VH

Overview

The LB11685VH is a three-phase full-wave current-linear-drive motor driver IC. It adopts a sensor less control system

without the use of a Hall Effect device. For quieter operation, the LB11685VH features a current soft switching circuit and

be optimal for driving the cooling fan motors used in refrigerators, etc.

Functions

• Three-phase full-wave linear drive (Hall sensor-less method )

• Built-in three-phase output voltage control circuit

• Built-in current limiter circuit

• Built-in motor lock protection circuit

• Motor lock protection detection output

• FG output made by back EMF

• Built-in thermal shut down circuit

• Beat lock prevention circuit

Specifications

Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

19

V

Input applied voltage

VIN max

-0.3 to VCC +0.3

V

Maximum output current

IO max *1

1.2

A

Allowable power dissipation

Pd max

Mounted on a board *2

1.4

W

Operating temperature

Topr

-40 to 85

°C

Storage temperature

Tstg

-55 to 150

°C

Junction temperature

Tj max

150

°C

*1: The IO is a peak value of motor-current.

*2: Specified board: 76.1mm

× 114.3mm × 1.6mm, glass epoxy board.

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.

61610 SY 20100604-S00002 No.A1773-1/7