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LB11961 데이터시트 PDF




Sanyo Semicon Device에서 제조한 전자 부품 LB11961은 전자 산업 및 응용 분야에서
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부품번호 LB11961 기능
기능 Single-Phase Full-Wave Fan Motor Driver
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LB11961 데이터시트, 핀배열, 회로
www.DataSheet.co.kr
Ordering number : EN8793B
LB11961
Monolithic Digital IC
Single-Phase Full-Wave
Fan Motor Driver
Overview
The LB11961 is a single-phase bipolar drive motor driver that easily implements direct PWM motor drive systems with
excellent efficiency. The LB11961 is optimal for fan motor drive in personal computer power supply systems and CPU
cooling fan systems.
Features
Single-phase full-wave drive (16V, 1.0A transistors are built in)
Built-in variable speed function controlled by a thermistor input
The LB11961 can implement quiet, low-vibration variable speed control using externally clocked high side transistor
direct PWM drive.
Built-in regenerative diode (Di); only requires a minimal number of external components.
Built-in HB
Minimum speed setting pin (allows full-speed mode operation at startup)
Operates in full-speed mode when the thermistor is removed.
Built-in lock protection and automatic recovery circuits
FG (speed detection) and RD (lock detection) outputs
Built-in thermal shutdown circuit
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. 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 new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) 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.
92111 SY 20110915-S00002/31407 TI PC 20070206-S00002 B8-6878 No.8793-1/7
Datasheet pdf - http://www.DataSheet4U.net/




LB11961 pdf, 반도체, 판매, 대치품
www.DataSheet.co.kr
Pin Assignment
LB11961
F-GND
(P-GND)
F-GND
(P-GND)
OUT2 1
VCC 2
RMI 3
VTH 4
CPWM 5
LB11961
14 OUT1
13 S-GND
12 CT
11 6VREG
10 IN-
FG 6
9 HB
RD 7
8 IN+
Top view
F-GND (P-GND) : The motor system ground and the heat sink. Since the heat generated Since the heat generated by the chip is
dissipated through F-GND, the thermal resistance is lowered by increasing the area of the copper foil and solder
surface in the printed circuit pattern.
S-GND :
Control system ground
Block Diagram
FG RD
VCC
Thermal
protection circuit
6VREG
Constant
voltage
1.3V
HB
Control
circuit
Hall
IN+
IN
Amplifier with
hysteresis Charge/discharge
circuit
S-GND
CT VTH
Delay circuit
Delay circuit
Oscillator
circuit
CPWM
P-GND
OUT2
M
OUT1
No.8793-4/7
Datasheet pdf - http://www.DataSheet4U.net/

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LB11961 전자부품, 판매, 대치품
www.DataSheet.co.kr
LB11961
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.
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 September, 2011. Specifications and information herein are subject
to change without notice.
PS No.8793-7/7
Datasheet pdf - http://www.DataSheet4U.net/

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