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TDA5146T Datasheet(PDF) 2 Page - NXP Semiconductors |
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TDA5146T Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 18 page Philips Semiconductors Product specification TDA5146T Brushless DC motor drive circuit 2 1994 May 18 FEATURES • Full–wave commutation (using push/pull drivers at the output stages) without position sensors • Built–in start–up circuit • Three push–pull outputs: – 2 A output current (Typical) – Built–in current limiter • Thermal protection • Soft switching outputs • Flyback diodes • Tacho output sensor • Brake function • Direction control input • Reset function • FET driver stage to be used in a buck converter APPLICATIONS General purpose spindle driver (e.g., HDD, tape driver) GENERAL DESCRIPTION The TDA5146T is a bipolar integrated circuit used to drive brushless DC motors in full–wave mode. The device senses the rotor position using an EMF –sensing technique and is ideally suited as a drive circuit for a hard disk drive motor or tape drive. QUICK REFERENCE DATA Measured over full voltage and temperature ranges Symbol Parameter Min. Typ. Max. Unit VP Supply voltage range (Note 1) 4 – 18 V Vsup Supply for the FET driver voltage range 4 – 18 V VVMOT Input voltage to the output driver stages (see Fig. 1) 1.7 – 16 V VDo Driver output voltage drop IO= 100 mA – 0.9 1.05 V ILIM Current limiting 1.80 2.0 2.5 A NOTES: 1. An unstabilized supply can be used 2. VVMOT=VP ; all outputs IO = 0 mA ORDERING AND PACKAGE INFORMATION Type n mber Package Type number Name Description Version TDA5146T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1 |
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