TDA5341

INTEGRATED CIRCUITS DATA SHEET TDA5341 Brushless DC motor and VCM drive circuit with speed control Product specification File under Integrated Circuits, IC11 1997 Jul 10 Philips Semiconductors Product specification Brushless DC motor and VCM drive circuit with speed control FEATURES Full-wave commutation (using push-pull output stages) without position sensors Built-in start-up circuitry Three push-pull MOS outputs: – 1 A output current – Low voltage drop – Built-in current limiter Thermal protection General purpose operational amplifier Reset generator Motor brake facility Actuator driver (H-bridge current-controlled) Power-down detector Automatic park and brake procedure Adjustable park voltage Sleep mode Speed control with Frequency-Locked Loop (FLL) Serial port Friction reduction prior to spin-up. QUICK REFERENCE DATA Measured over full voltage and temperature range. SYMBOL VDD IoMOT RDS(MOT) IoACT RDS(ACT) PARAMETER general supply voltage for logic and power motor output current motor output resistance actuator output current actuator output resistance MIN. 4.5 1.3 − 0.7 − TYP. 5.0 1.6 1.1 1.1 2.0 MAX. 5.25 1.9 1.56 1.4 2.5 V A APPLICATIONS Hard Disk Drive (HDD). GENERAL DESCRIPTION TDA5341 The TDA5341 is a BiCMOS 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. The TDA5341 al...