LB11867FV_11 SANYO [Sanyo Semicon Device], LB11867FV_11 Datasheet

LB11867FV_11

Manufacturer Part Number

LB11867FV_11

Description

For Fan Motor Variable Speed Single-phase Full-wave Pre-driver

Manufacturer

SANYO [Sanyo Semicon Device]

Datasheet

1.LB11867FV_11.pdf (9 pages)

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Ordering number : ENA0730B

LB11867FV

Overview

Features

LB11867FV is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external

PWM signal. With a few external parts, a highly-efficient and highly-silent variable drive fan motor with low power

consumption can be achieved. This product is best suited for driving of the server requiring large air flow and large current

and the fan motor of consumer appliances.

• Single-phase full-wave driving pre-driver

• Variable speed control possible with external PWM input

• Current limiting circuit incorporated

• Reactive current cut circuit incorporated

• Minimum speed setting pin

• Soft start setting pin

• Lock protection and automatic reset circuits incorporated

• FG (rotation speed detection) output

• Thermal shutdown circuit incorporated

⇒ Low-saturation drive using external PMOS-NMOS enables high-efficiency low power-consumption drive.

⇒ Separately-excited upper direct PWM (f =30kHz) control method ensures highly silent speed control.

⇒ Chopper type current limiting made at startup and during lock.

⇒ Reactive current before phase changeover is cut, ensuring highly silent and low power-consumption drive.

⇒ Minimum speed can be set by setting the resistance.

"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

Monolithic Digital IC

For Fan Motor

Variable Speed Single-phase

Full-wave Pre-driver

11911 SY/O1007 MS/50907 MS PC 20070228-S00004 No.A0730-1/9

s products or

Related parts for LB11867FV_11

LB11867FV_11 Summary of contents

Page 1

Ordering number : ENA0730B LB11867FV Overview LB11867FV is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external PWM signal. With a few external parts, a highly-efficient and highly-silent variable drive fan motor with low power ...

Page 2

Specifications Absolute Maximum Ratings 25°C Parameter Symbol V CC pin maximum supply voltage V CC max OUTN pin maximum output IOUTN max current OUTP pin maximum Sink current IOUTP max OUT pin output withstand voltage VOUT max ...

Page 3

Package Dimensions unit : mm (typ) 3178B 5 0.65 0.15 (0.33) 0.22 SANYO : SSOP16(225mil) Pin Assignment LB11867FV 1000 800 600 400 200 0 -30 OUT2P 1 16 OUT1P OUT2N 2 15 OUT1N ...

Page 4

Block Diagram CT 0.47 to 1μF Discharge pulse V CC 5VREG 5VREG HALL Truth table (1) Drive lock CPWM=H VTH, RMI, S-S ...

Page 5

Application Circuit Example (12V) PWM-IN *1. Power−GND wiring SGND is connected to the control circuit power supply system. *2. Power stabilization capacitor For the power stabilization capacitor on the signal side, use the capacitance of 1μF or more. Connect V ...

Page 6

RMI pin Minimum speed setting pin. Perform pull-up with 5VREG when this pin is not to be used. If the IC power supply is likely to be turned OFF first when the pin is used with external power supply, ...

Page 7

Control timing chart (Speed control) VTH voltage RMI voltage 0V Minimum speed setting rotation (stop mode) FG 100% ONDUTY 0% (1) Minimum speed setting (stop) mode The low-speed fan rotation occurs at the minimum speed set with the RMI pin. ...

Page 8

Control timing chart (Soft start) (1)At VTH < RMI voltage RMI voltage VTH voltage 0V Lock protection 100% ONDUTY 0% (2) At VTH > RMI voltage VTH voltage RMI voltage 0V Lock protection 100% ONDUTY 0% Adjust the S-S pin ...

Page 9

SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all ...

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