LB1941T

No.7193-4/4

Truth Table

Input

Output

IN1

IN2

OUT1

OUT2

Mode

L

L

OFF

OFF

Standby 1*

H

L

H

L

Forward rotation

L

H

L

H

Reverse rotation

H

H

OFF

OFF

Standby 2*

Cautions for use

Standby states 1 and 2 in the above truth table differ as follows:

Standby state 1 ............All circuits in IC are not operating and the current dissipation is almost zero.

Standby state 2 ............The constant-current control amplifier output in IC is in the full drive condition. Both OUT1

and OUT2 are OFF. The current dissipation is a few mA.

During mode transfer from the standby state 1 to forward (reverse) rotation, the current rises from the output current

zero condition to the required constant current value. On the other hand, during mode transfer from the standby state

2 to forward (reverse) rotation, full drive is applied once to the output, then the current lowers to the required current

value.

Therefore, select the standby 1 state when putting IC in the standby state. A typical drive sequence is shown in the

figure below.

This catalog provides information as of June, 2007. Specifications and information herein are subject

to change without notice.

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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.

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limited to protective circuits and error prevention circuits for safe design, redundant design, and structural

design.

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above.

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

for volume production.

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product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the

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PS

Standby

Standby

Reverserotation

Reverserotation

Fowardrotation

IN1

IN2