TDA5145TS Ver la hoja de datos (PDF) - Philips Electronics

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TDA5145TS

Brushless DC motor drive circuit

Philips Electronics 

Philips Semiconductors

Brushless DC motor drive circuit

Notes

1. An unstabilized supply can be used.

2. VVMOT = VP, all other inputs at 0 V; all outputs at VP; Io = 0 mA.

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.

Product specification

TDA5145TS

handbook, full pagewidth

back EMF signal

VMOT0

VCSW

hysteresis 75 µV typ.

VCSW

MGR381

MOT1, MOT2 and MOT3

comparator threshold

voltages

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

handbook, halfpag1e2.5 V

2.0 V

tr

12.5 V

2.0 V

tf

MGR382

1998 Oct 27

Fig.5 Output transition time measurement.

8

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