TDF5140AP/C1,112 NXP

INTEGRATED CIRCUITS TDF5140A Brushless DC motor drive circuit Product specification 1999 March 15 Philips Semiconductors Product specication Brushless DC motor drive circuit TDF5140A FEATURES APPLICATIONS Full-wave commutation (using push/pull drivers at the VCR output stages) without position sensors Laser beam printer Built-in start-up circuitry Fax machine Three push-pull outputs: Blower 0.8 A output current (typ.) Automotive. low saturation voltage built-in current limiter GENERAL DESCRIPTION Thermal protection The TDF5140A is a bipolar integrated circuit used to drive Flyback diodes 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the Tacho output without extra sensor back-EMF sensing technique to sense the rotor position. Position pulse stage for phase-locked-loop control Transconductance amplifier for an external control transistor. QUICK REFERENCE DATA Measured over full voltage and temperature range. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V supply voltage note 1 4 - 18 V P V input voltage to the output note 2 1.7 - 20 V VMOT driver stages V drop-out output voltage I = 100 mA - 0.93 1.05 V DO O I current limiting V = 10 V R = 3.9 0.7 0.8 1 A LIM VMOT O Notes 1. An unstabilized supply can be used. 2. V = V +AMP IN = - AMP IN = 0 V all outputs I = 0 mA. VMOT P O ORDERING INFORMATION PACKAGE EXTENDED TYPE NUMBER PINS PIN POSITION MATERIAL CODE TDF5140A 18 DIL plastic SOT102 1999 March 15 2