June 1994

9

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5145

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.

CAP-DC

output sink current

10.1

15.5

20.9

µA

output source current

−20.9

−15.5

−10.1

µA

0.9

1.025

1.15

LOW level input voltage

850

875

900

mV

HIGH level input voltage

2.3

2.4

2.55

V

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Fig.5 Switching levels with respect to MOT1, MOT2 and MOT3.

Fig.6 Output transition time measurement.