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TDA5146T

NXP
Part Number TDA5146T
Manufacturer NXP
Description Brushless DC motor drive circuit
Published Apr 23, 2005
Detailed Description INTEGRATED CIRCUITS TDA5146T Brushless DC motor drive circuit Product specification 1994 May 18 Philips Semiconductors...
Datasheet PDF File TDA5146T PDF File

TDA5146T
TDA5146T

Overview
INTEGRATED CIRCUITS TDA5146T Brushless DC motor drive circuit Product specification 1994 May 18 Philips Semiconductors Philips Semiconductors Product specification Brushless DC motor drive circuit TDA5146T 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.
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