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TDA5143T Scheda tecnica(PDF) 5 Page - NXP Semiconductors |
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TDA5143T Scheda tecnica(HTML) 5 Page - NXP Semiconductors |
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5 / 20 page  June 1994 5 Philips Semiconductors Product specification Brushless DC motor drive circuit TDA5143T FUNCTIONAL DESCRIPTION The TDA5143T offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5143T offers protected outputs capable of handling high currents and can be used with star or delta connected motors. It can easily be adapted for different motors and applications. The TDA5143T offers the following features: • Sensorless commutation by using the motor EMF. • Built-in start-up circuit. • Optimum commutation, independent of motor type or motor loading. • Built-in flyback diodes. • Three phase full-wave drive. • High output current (0.85 A). • Outputs protected by current limiting and thermal protection of each output transistor. • Low current consumption by adaptive base-drive. • Soft-switching pulse output for low radiation. • Accurate frequency generator (FG) by using the motor EMF. • Uncommitted operational transconductance amplifier (OTA), with a high output current, for use as a control amplifier. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VP supply voltage − 18 V VI input voltage; all pins except VMOT VI < 18 V −0.3 VP + 0.5 V VVMOT VMOT input voltage −0.5 17 V VO output voltage AMP OUT and FG GND VP V MOT0, MOT1, MOT2 and MOT3 −1VVMOT + VDHF V VI input voltage CAP-ST, CAP-TI, CAP-CD and CAP-DC − 2.5 V Tstg storage temperature −55 +150 °C Tamb operating ambient temperature 0 +70 °C Ptot total power dissipation see Fig.3 −− W Ves electrostatic handling see Chapter “Handling” − 500 V |
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