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PDF LB11868V Data sheet ( Hoja de datos )
| Número de pieza | LB11868V | |
| Descripción | Variable Speed Single-phase Full-wave Pre-driver | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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www.DataSheet.co.kr
Ordering number : ENA1915A
LB11868V
Monolithic Digital IC
For Fan Motor
Variable Speed Single-phase
Full-wave Pre-driver
Overview
LB11868V 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.
Features
• 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
• Start setting pin of on time
• Pch-FET kickback absorption setting pin
• Lock protection and automatic reset circuits incorporated
• FG (rotational speed detection) output, RD (lock detection) output
• Thermal shutdown circuit incorporated
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.
51311 SY/11911 SY 20101217-S00010 No.A1915-1/11
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1 page  
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Application Circuit Example
LB11868V
*2
*16
1
*17
2
3
4
PWM-IN
*1
*3 REG
*13 S-S
*8 RMI
VCC
FG *10
RD *11
*15
*7
*4
H *5
KBSET
VTH
HB
IN+
IN-
CPWM CT
*6 *12
OUT1P
OUT1N
SENSE
*9
OUT2N
OUT2P
SGND
OTS
*14
220pF
1
2
3
4
*1. Power stabilization capacitor
For the power stabilization capacitor on the signal side, use the capacitance of 1μF or more.
Connect VCC and SGND with a thick and shortest pattern.
*2. Power stabilization capacitor on the power side
For the power stabilization capacitor on the power side, use the capacitance of 1μF or more.
Connect the power supply on the power side and GND with a thick and shortest pattern.
When the IC is used for a fan with a high current level, insert a zener diode between the power supply on the power
side and GND.
*3. REG pin
3.8V constant-voltage output pin. For the REG oscillation prevention and stabilization, use a capacitor with
capacitance of 1µF or more. Connect the REG pin and SGND with a thick and shortest pattern.
*4. HB pin
Used for Hall device bias purposes.
*5. IN+, IN- pins
Hall signal input pin.
Wiring should be short to prevent carrying of noise.
If noise is carried, insert the capacitor between IN+ and IN- pins.
The Hall input circuit functions as a comparator with hysteresis (15mV).
This also has a soft switch section with ±30mV (input signal differential voltage).
It is also recommended that the Hall input level is minimum 100mV (p-p).
No.A1915-5/11
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LB11868V
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 May, 2011 Specifications and information herein are subject
to change without notice.
PS No.A1915-11/11
Datasheet pdf - http://www.DataSheet4U.net/
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