1998 Oct 27

8

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5145TS

Notes

1. An unstabilized supply can be used.

3. Switching levels with respect to MOT1, MOT2 and MOT3.

4. Drivers are in the high-impedance OFF-state.

5. The outputs are short-circuit protected by limiting the current and the IC temperature.

Fig.4 Switching levels with respect to MOT1, MOT2 and MOT3.

handbook, full pagewidth

MGR381

MOT1, MOT2 and MOT3

comparator threshold

voltages

hysteresis 75

µV typ.

VMOT0

VCSW

VCSW

back EMF signal

Fig.5 Output transition time measurement.

handbook, halfpage

12.5 V

2.0 V

MGR382

12.5 V

2.0 V

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