TDA5147CH - NXP

TDA5147CH 12 V Voice Coil Motor VCM driver and spindle motor drive combination chip

plastic quad flat package; 64 leads (lead length 1.6 mm); body 14 × 14 × 2.7 mm TDA5147CH • Retract circuit operates down to 2 V • Internal thermal sense circuitry with an over temperature shut down option • Internal boost voltage generator • Sleep mode. Thermal warning circuit • Output active 15 °C before general thermal shutdown. APPLICATIONS • Hard disk .

Features

Spindle motor driver
• Internal 2 A peak current power drivers
• Low Rds(on) (1 Ω maximum total) for high, low and isolation drivers
• Induction sense start-up option
• External current sense resistor
• Soft switching on both upper and lower drivers
• Programmable linear or Pulse Width Modulation (PWM) spindle mode
• Provide spindle active dynamic braking mode. Voice coil motor driver
• 1.2 A VCM power driver
• Maximum of 1 V drop across the power driver at 0.8 A
• External current sense resistor, with sense amplifier
• External current control loop compensation
• 15 kHz (typ.) VCM current con.