TDA5241

[Q)~u~ ~[}{]~~¥ . Product specification File under Integrated November 96 Circuits, ICO1 Philips Semiconductors re Philips Semiconductors Product specification Brushless DC motor drive circuit TDA5241 FEATURES .Full-wave .Built-in .Optimum .Built-in .Three -0.85 -built-in .Thermal .Low .Tacho ..Comparator .Built-in commutation start-up circuit independent on motor type or motor loading (using push/pull drivers at the output stages) without position sensors commutation flyback push-pull A output current protection consumption diodes outputs: current limiter current by adaptative base-drive output without extra sensor. position generator (PG) signal PG signal on one pin for easy use with a controlling for external multiplexer combining internal FG and external microprocessor .Linear .PG control of the output stages signal output. APPLICATIONS .General purpose spindle driver ( e.g. VCR scanner motor). GENERAL DESCRIPTION The TDA5241 is a bipolar integrated circuit used to drive brush less 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 VCR scanner motors. QUICK ~ REFERENCE DATA and temperature ranges MIN. Measured over full voltage SYMBOL Yp IUM Yo PARAMETER supply I cu!rent TYP. ~ ~ MAX. UNIT v A V voltage limiting range (note 1 } 4 0.6 0.85 0.93 I oU~Ut voltage at 10 = 100 mA(Upper+Lower transistor) Note 1. An unstabilized supply can be u...