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TDA5147CH

NXP
Part Number TDA5147CH
Manufacturer NXP
Description 12 V Voice Coil Motor VCM driver and spindle motor drive combination chip
Published Apr 23, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TDA5147CH 12 V Voice Coil Motor (VCM) driver and spindle motor drive combination chip P...
Datasheet PDF File TDA5147CH PDF File

TDA5147CH
TDA5147CH

Overview
INTEGRATED CIRCUITS DATA SHEET TDA5147CH 12 V Voice Coil Motor (VCM) driver and spindle motor drive combination chip Preliminary specification File under Integrated Circuits, IC11 1997 Jul 09 Philips Semiconductors Preliminary specification 12 V Voice Coil Motor (VCM) driver and spindle motor drive combination chip 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 control loop bandwidth • Three modes of operation: – Enable VCM – Retract – Disable • Brake after park circuitry.
Power monitor and retract circuit • +5 V and +12 V power monitor threshold accuracy ±2% • Hysteresis on both power monitor comparators • Internal voltage reference: precision 2% • Buffered reference voltage output pin ORDERING INFORMATION TYPE NUMBER TDA5147CH PACKAGE NAME QFP64 DESCRIPTION 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 drive for Personal Computer products.
GENERAL DESCRIPTION The TDA5147CH is an ASIC combination chip that includes the following functions: spindle motor driver voice coil motor driver retract Power-on.
The circuit is contained in a 64-pin QFP package.
The TDA5147CH is controlled by a custom digital ASIC (se...


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