lb1868 Sanyo Semiconductor Corporation, lb1868 Datasheet - Page 4

• Manufacturer Part Number: lb1868
• Description: Two-phase Brushless Fan Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

Pin Description
Pin Assignment
Pin name
OUT1
OUT2
GND
VIN
IN–
IN+
RD
CT
Z1
Z2
This catalog provides information as of August, 2000. Specifications and information herein are subject to change
without notice.
Specifications of any and all SANYO 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.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or 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 products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining 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 permission of SANYO Electric 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 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. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
Hall input + pin Hysteresis amplifier
Hall input – pin Hysteresis amplifier
Lockup protection time setting capacitor pin (0.47 to 4.7 F)
External Zener diode pin (external Zener diode to be connected between power supply and Z1)
Kickback absorption voltage alteration pin (shorted to Z1: 12V operation)
Output 1 pin
Output 2 pin
Regulated power supply input pin (limiting resistor to be inserted between power supply and VIN)
GND pin
Lockup detection pin (latch type)
OUT1
GND
IN+
IN–
CT
1
2
3
4
5
LB1868
LB1868
Function
Top view
10
7
9
8
6
VIN
RD
OUT2
Z2
Z1
PS
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