TA8492PG Ver la hoja de datos (PDF) - Toshiba

Número de pieza

componentes Descripción

Fabricante

TA8492PG

TOSHIBA Bipolar Linear Integrated Circuit

Toshiba 

Handling Precautions

TA8492P/PG

CW/CCW/Stop control circuit

a) At 3ST input, because the input voltage ranges for VRV (Reverse mode) and VSTP (Stop mode) are narrow,

make sure no impedance is caused between the IC VCC and GND pins. Do not connect an input resistor to

the 3ST pin as this will cause voltage offset.

b) When controlling the rotation direction using 3ST input, switch the direction from Reverse to Stop mode or

vice versa with VS = 0 V; otherwise punch-through current may be generated at output.

Hall amp. circuit

A Hall IC input amplitude of over 400 mVp-p causes an output function error. Make sure the amplitude is

within the specified range.

Output circuit

Particular care is necessary in the design of the output, VS, VCC and GND lines since the IC may be destroyed

due to short circuits between output air contamination faults, or faults caused by improper grounding

External Parts

Symbol

Function

Recommended

Value

Remarks

C1 Power supply line oscillation prevention

C2 Power supply line oscillation prevention

C3 Output noise reduction

R1 Hall bias

4.7 µF

4.7 µF

4.7 µF

⎯

⎯

⎯

(Note 3)

(Note 4)

Note 3: Set an appropriate value depending on the motor and use conditions.

Set an appropriate value so that the Hall IC output common-mode input voltage and amplitude fall within the

specified ranges in the Electrical Characteristics table.

Note 4: Be sure to set this bias so that the Hall element output amplitude and common-mode input voltage fall within

the ranges specified in the table of electrical characteristics.

5

2006-3-2

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