LB1924 Ver la hoja de datos (PDF) - SANYO -> Panasonic

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LB1924

Power Brushless Motor Driver IC for Office Automation Equipment

SANYO -> Panasonic 

LB1924

Continued from preceding page.

Pin No. Pin

Pin function

20

CR PWM oscillator frequency setting.

Connect a resistor (R) between this pin and VREG and a

capacitor (C) between this pin and ground. Values of R = 22

kΩ, and C = 4700 pF set a frequency of about 19 kHz.

Equivalent circuit

21 GND1 Ground (blocks other than the output block)

22

IN1+ Hall inputs

23

IN1– An input with IN+ > IN– is taken to be a high level, and the

24

IN2+ opposite state is taken to be a low level. Hall signals with

25

IN2– amplitudes greater that 100 mVp-p (differential) are desirable.

26

IN3+ If noise on the Hall signals is a problem, connect capacitors

27

IN3– between the IN+ and IN– pins.

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.

This catalog provides information as of July, 1999. Specifications and information herein are subject to

change without notice.

PS No. 5687-11/11

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