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LB11988HR Fiches technique(PDF) 6 Page - Sanyo Semicon Device

No de pièce LB11988HR
Description  Monolithic Digital IC Fan Motor Driver
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB11988HR Fiches technique(HTML) 6 Page - Sanyo Semicon Device

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LB11988HR
PS No.A0300-6/6
Pin Functions
Pin No.
Pin name
Function
7
FRAME
GND
Ground for circuits other than the output transistors.
Note that the Rf pin will be at the lowest potential of the output transistors.
4
FGOUT
This is the FG amplifier output pin. Internally, it is a resistive load. (Pull up)
6
FR
Forward/reverse switching pin
9
FC
Corrects the frequency characteristics of the saturation prevention circuit loop and current limiter circuit.
12, 13
14, 17
18, 19
UIN+, UIN-
VIN+, VIN-
WIN+, WIN-
U-phase Hall input. Logic high refers to the state where IN+
> IN-.
V-phase Hall input. Logic high refers to the state where IN+
> IN-.
W-phase Hall input. Logic high refers to the state where IN+
> IN-.
21
VCC
Power supply provided to all IC internal circuits other than the output block.
This voltage must be stabilized so that ripple and noise do not enter the IC.
22
VS
Output block power supply
23
RF
Used for output current detection. The current limiter circuit operates using the resistor (Rf) connected between this
pin and ground.
Note that the lower side saturation prevention circuit operates according to the voltage that appears on this pin.
Since the over-saturation level is set by this voltage, the level of the lower side saturation prevention circuit may be
degraded in the large current region if the value of Rf is made extremely small.
27
28
1
UOUT
VOUT
WOUT
U-phase Hall output.
V-phase Hall output.
(These pins include internal spark killer diodes.)
W-phase Hall output.
This catalog provides information as of February, 2012. Specifications and information herein are subject
to change without notice.
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.
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.
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.
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.


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