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TDA5144AT 数据表(PDF) 5 Page - NXP Semiconductors |
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TDA5144AT 数据表(HTML) 5 Page - NXP Semiconductors |
5 / 20 page June 1994 5 Philips Semiconductors Product specification Brushless DC motor drive circuit TDA5144 Fig.2 Pin configuration (SOT163-1; SO20L). Fig.3 Pin configuration (SOT136-1; SO28L). FUNCTIONAL DESCRIPTION The TDA5144 offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5144 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 TDA5144 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 (2.0 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. |
类似零件编号 - TDA5144AT |
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类似说明 - TDA5144AT |
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