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PDF LB11681H Data sheet ( Hoja de datos )
| Número de pieza | LB11681H | |
| Descripción | Monolithic Digital IC PWM Three-phase Brushless Motor Driver | |
| Fabricantes | Sanyo Semicon Device | |
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Ordering number : ENA0665
www.DataSheet4U.com
LB11681H Monolithic Digital IC
PWM Three-phase Brushless Motor Driver
Overview
The LB11681H is a three-phase brushless fan motor driver IC. This IC uses a PWM soft switching
drive-method (for low-noise drive). Since this IC includes a motor constraint protection circuit necessary
for a fan motor system, highly reliable products including this IC can be designed. Also, this IC can be
operated with 12V single power supply.
Functions
• Direct PWM drive
• Three-phase full-wave driving method
• Soft switching driving
• Built-in lock (constraint) protection circuit
• Built-in lock (constraint) detection circuit
• FG output (provides one Hall effect sensor equivalent
FG outputs)
• Built-in Forward / Reverse switching circuit
• Built-in thermal shut down circuit
• Built-in current limitation circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply Voltage
Output current
Allowable Power dissipation 1
Allowable Power dissipation 2
Operating temperature
Storage temperature
Symbol
VM max
IO max
Pd max1
Pd max2
Topr
Tstg
Conditions
Independence IC
Mounted on a circuit board*
* Mounted on a specified board: 114.3mm×76.1mm×1.6mm, glass epoxy.
Ratings
15.0
1.3
0.8
2.0
-20 to 85
-55 to 150
Unit
V
A
W
W
°C
°C
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.
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's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
22807 MS IM B8-8366 No.A0665-1/11
1 page  
Truth Table
Source
1 WOUT→VOUT
2 WOUT→UOUT
3 VOUT→UOUT
4 VOUT→WOUT
5 UOUT→WOUT
6 UOUT→VOUT
Sink
LB11681H
HU+
H
H
H
L
L
L
F/R “L”
HV+
H
L
L
L
H
H
HW+
L
L
H
H
H
L
Sample Application Circuit
www.DataSheet4U.com
HU+
L
L
L
H
H
H
F/R “H”
HV+
L
H
H
H
L
L
HW+
H
H
L
L
L
H
VCTL VREF LD
28 27 26 25 24 23 22
21 20 19 18 17 16 15
LB11681H
1234567
+
12V
8 9 10 11 12 13 14
FG
No.A0665-5/11
5 Page 
LB11681H
10. Usage Note :
www.DataSheet4U.com
As for the GND
The frames of center of IC are the power system ground.
The power GND and the system GND are set to the lowest potential.
As for the bypath capacitor
The bypath capacitor between the VM pin and GND must connect as close as possible to the GND pin of IC.
As for VM, GND and short-circuit between the outputs.
Please avoid the following matters. :
- Short between the output pin and the VM pin.
- Short between the output pin and GND
- Short between the outputs.
Also, the IC should be oriented on the board because the IC may be destroyed and may be emitted smoke
possibly.
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 SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license from the authorities concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,
without the prior written consent of SANYO Semiconductor Co.,Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. 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 February, 2007. Specifications and information herein are subject
to change without notice.
PS No.A0665-11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LB11681H.PDF ] | |
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