LB1945H

PS No.6193-7/7

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.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed

for volume production.

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.

Usage Notes

1. VREF pin

Because the VREF pin is used as reference voltage input pin for the current setting, care must be taken to prevent

noise from affecting the input.

2. GND pin

Because this IC switches large currents, the ground pattern must be designed with care. The fin on the bottom of the

package and the fins between pins 7 and 8 and 21 and 22 should be grounded. Low-impedance patterns should be used

in blocks where large currents flow, and these blocks should be separated from low-level signal blocks. In particular,

the ground of the sense resistor RE at pin E should be located close to the IC ground. Pattern layout should be

designed so that the capacitors between VCC and ground and VBB and ground are close to VCC and VBB.

This catalog provides information as of March, 2009. Specifications and information herein are subject

to change without notice.