ta8492p TOSHIBA Semiconductor CORPORATION, ta8492p Datasheet - Page 12

• Manufacturer Part Number: ta8492p
• Description: Three-phase Full-wave Brushless Dc Motor Driver Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Notes of Contents
1. Block Diagrams
explanatory purposes.
2. Equivalent Circuits
purposes.
3. Timing Charts
4. Maximum Ratings
be exceeded during operation, even for an instant.
irreparably altered and the reliability and lifetime of the device can no longer be guaranteed.
other equipment. Applications using the device should be designed so that no maximum rating will ever be
exceeded under any operating conditions.
forth in this document.
5. Application Circuits
is required, especially in the mass production design phase.
rights.
6. Test Circuits
components and circuits are not guaranteed to prevent malfunction or failure in application equipment.
Handling of the IC
or equipment.
Overcurrent Protection and Heat Protection Circuits
abnormal conditions and are not guaranteed to prevent damage to the IC.
and some output short circuits may result in the IC being damaged.
configured so that any overcurrent condition will be eliminated as soon as possible.
Counter-electromotive Force
the power source.
rating.
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.
If any of these ratings are exceeded during operation, the electrical characteristics of the device may be
Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in
Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set
In furnishing these examples of application circuits, Toshiba does not grant the use of any industrial property
Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
Timing charts may be simplified for explanatory purposes.
The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not
The application circuits shown in this document are provided for reference purposes only. Thorough evaluation
Components in the test circuits are only used to obtain and confirm the device characteristics. These
Ensure that the product is installed correctly to prevent breakdown, damage and/or degradation in the product
These protection functions are intended only as a temporary means of preventing output short circuits or other
If the guaranteed operating ranges of this product are exceeded, these protection features may not operate
The overcurrent protection feature is intended to protect the IC from temporary short circuits only.
Short circuits persisting over long periods may cause excessive stress and damage the IC. Systems should be
If the power supply is not equipped with sink capability, the power and output pins may exceed the maximum
When the motor reverses or stops, the effect of counter-electromotive force may cause the current to flow to
The counter-electromotive force of the motor will vary depending on the conditions of use and the features of
12
TA8492P/PG
2004-07-27