lb11685av Sanyo Semiconductor Corporation, lb11685av Datasheet

lb11685av

Manufacturer Part Number

lb11685av

Description

3-phase Sensor Less Motor Driver

Manufacturer

Sanyo Semiconductor Corporation

Datasheet

1.LB11685AV.pdf (7 pages)

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Ordering number : ENA1772

LB11685AV

Overview

Functions

Specifications

Maximum Ratings at Ta = 25°C

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

*2: Specified board: 76.1mm × 114.3mm × 1.6mm, glass epoxy board.

Maximum supply voltage

Input applied voltage

Maximum output current

Allowable power dissipation

Operating temperature

Storage temperature

Junction temperature

The LB11685AV 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 LB11685AV features a current soft switching circuit and

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

• 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

Parameter

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

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

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.

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.

s products or equipment. To verify symptoms and states that cannot be evaluated in an independent

V CC max

V IN max

I O max *1

Pd max

Topr

Tstg

Tj max

Symbol

Mounted on a board *2

Monolithic Digital IC

3-phase sensor less

Motor driver

Conditions

61610 SY 20100604-S00001 No.A1772-1/7

Ratings

-0.3 to V CC +0.3

s products or

-55 to 150

-40 to 85

1.05

150

1.2

Unit

°C

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lb11685av Summary of contents

Page 1

... The LB11685AV 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 LB11685AV features a current soft switching circuit and be optimal for driving the cooling fan motors used in refrigerators, etc. ...

Page 2

... The thermal shut down circuit is built-in for protection from damage of IC. But its operation is out of Topr. Design thermal calculation at normal operation. *2: Design target value and no measurement is made. *3: The peak value of motor-current. LB11685AV Conditions Conditions FC1 = FC2 = 0. ...

Page 3

... SANYO : SSOP24J(275mil) Pin Assignment UOUT 1 (NC) 2 (NC) 3 PGND 4 MCOM 5 (NC) 6 SGND (NC LB11685AV 1.5 1.0 0.15 0.5 0 -40 - max - Ta Specified circuit board : 114.3 × 76.1 × 1.6mm 3 glass epoxy board 1.05 0. ...

Page 4

... Block Diagram Output Switching Control 5 Start Up Mask Timing 6 Power On Reset 7 Motor Lock Detector VCO 12 LB11685AV Pre Drive Distributor Reference Voltage & Bandgap + - TSD Torque Ripple Rejection & Current Limit FG PLL Low Voltage Control Soft Switching ...

Page 5

... To stabilize PLL output, connect a capacitor between this pin and GND VCO oscillation output pin. Operation frequency range and minimum frequency are determined by the capacity of the capacitor connected to this pin. LB11685AV Function Pin No.11 Equivalent circuit Pin No.20 Pin No.1,23,24 Pin No.4 SGND SGND SGND ...

Page 6

... V CC pin. 18 VREG DC voltage (3.3V) output pin. Connect a capacitor between this pin and GND for stabilization. 19 VCC Pin to supply power-supply voltage. To curb the influence of ripple and noise. The voltage should be stabilized. LB11685AV Function Pin No.13 Pin No.15 Pin No.16 Pin No.17 Equivalent circuit SGND SGND ...

Page 7

... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of June, 2010. Specifications and information herein are subject to change without notice. LB11685AV FAN MOTOR ...

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