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TDA5142T Datasheet(PDF) 5 Page - NXP Semiconductors |
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TDA5142T Datasheet(HTML) 5 Page - NXP Semiconductors |
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5 / 20 page  June 1994 5 Philips Semiconductors Product specification Brushless DC motor drive circuit TDA5142T Fig.2 Pin configuration. FUNCTIONAL DESCRIPTION The TDA5142T offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5142T offers protected outputs capable of driving external power FETs or bipolar power transistors. It can easily be adapted for different motors and applications. The TDA5142T 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. • Six output drivers. • Maximum output current 0.25 A. • Outputs protected by current limiting and thermal protection. • Low current consumption. • Accurate frequency generator (FG) by using the motor EMF. • Brake function. • Uncommitted operational transconductance amplifier (OTA), with a high output current, for use as a control amplifier or as a level shifter in a Switched Mode Power Supply (SMPS) drive. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VP supply voltage 4 18 V VI input voltage; all pins except VMOT VI < 18 V −0.3 VP + 0.5 V VVMOT VMOT input voltage 3 18 V VO output voltage FG GND VP V AMP OUT − 18 V OUT-NA, OUT-NB and OUT-NC − VVMOT − 0.9 V OUT-PA, OUT-PB and OUT-PC 0.2 − 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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