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TA8490F

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT MULTI−CHIP

Toshiba 

TA8490F

When VC > Vref, one of three modes (Reverse Rotation, Reversing Brake or Short Brake mode) can be selected

by setting the MS and BRK pins appropriately.

<Function>

VC < Vref

H

H Forward

MS

L Forward

BRK

L

Forward

Forward

VC > Vref

H

MS

L

H

Short brake

Short brake

BRK

L

Reverse

Reversing brake

In Short Brake mode, the upper−stage power transistor is turned on and the lower−stage power transistor is

turned off.

In Reversing Brake mode, all outputs are cut off after detection of reverse rotation, causing the motor to stop.

(Short brake)

(Reversing brake)

(1) When stopping the motor by applying a reversing brake after a short brake

9

2003-10-07

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