BA6908F

Motor driver ICs

5/7

Application circuit

1

2

3

4

8

7

6

5

REG

TSD

LOCK

DETECTION

AND

AUTO RESTART

Control

HALL

AMP

HALL

M

Fig.5

Cautions

1)

Thermal shut down(TSD)

This IC is built-in TSD.

TSD has the temperature hysteresis.

Fig.6 TSD

Output ON

Output OFF

TSD OFF

TSD ON

150

175

Junction temperature(

°C)

TSD ON (Typ. : 175

°C)

All output transistor OFF.

TSD OFF (Typ. : 150

°C)

Reset ordinary motion.

(It has the temperature hysteresis

of 25

°C<TYP>)

2)

Power dissipation

IC power dissipation widely varies with supply voltage, output current and application of IC. Please be careful for the

thermal design not to exceed the allowable power dissipation.