TA84005F データシートの表示（PDF） - Toshiba

部品番号

コンポーネント説明

メーカー

TA84005F

Three-Phase Wave Motor Driver IC

Toshiba 

TA84005F/FG

Notes on Contents

1. Block Diagrams

Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for

explanatory purposes.

2. Equivalent Circuits

The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory

purposes.

3. Timing Charts

Timing charts may be simplified for explanatory purposes.

4. Maximum Ratings

The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not

be exceeded during operation, even for an instant.

If any of these ratings are exceeded during operation, the electrical characteristics of the device may be

irreparably altered and the reliability and lifetime of the device can no longer be guaranteed.

Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in

other equipment. Applications using the device should be designed so that no maximum rating will ever be

exceeded under any operating conditions.

Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set

forth in this document.

5. Application Circuits

The application circuits shown in this document are provided for reference purposes only. Thorough evaluation

is required, especially in the phase of mass production design.

In furnishing these examples of application circuits, Toshiba does not grant the use of any industrial property

rights.

6. Test Circuits

Components in test circuits are used only to obtain and confirm device characteristics. These components and

circuits are not guaranteed to prevent malfunction or failure in application equipment.

Handling of the IC

Ensure that the product is installed correctly to prevent breakdown, damage and/or degradation in the product

or equipment.

Overcurrent Protection and Heat Protection Circuits

These protection functions are intended only as a temporary means of preventing output short circuits or other

abnormal conditions and are not guaranteed to prevent damage to the IC.

If the guaranteed operating ranges of this product are exceeded, these protection features may not operate

and some output short circuits may result in the IC being damaged.

The overcurrent protection feature is intended to protect the IC from temporary short circuits only. Short

circuits persisting over longer periods may cause excessive stress and damage the IC. Systems should be

configured so that any overcurrent condition will be eliminated as soon as possible.

Counter-electromotive Force

When the motor reverses or stops, the effect of counter-electromotive force may cause the current to flow to

the power source.

If the power supply is not equipped with sink capability, the power and output pins may exceed the maximum

rating.

The counter-electromotive force of the motor will vary depending on the conditions of use and the features of

the motor. Therefore make sure there will be no damage to or operational problem in the IC, and no damage to

or operational errors in peripheral circuits caused by counter-electromotive force.

20

2004-08-10

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