NXP Semiconductors TDA5147K
The TDA5147K is an ASIC combination chip that includes the following functions; spindle motor drive, voice coil motor drive, retract, and power-on. The circuit is contained in a 52-pin PLCC package. The custom ASIC provides the necessary commutation sequences for the spindle drivers via the SCNTL1, SCNTL2 and SCNTL3 inputs.| Part No. | TDA5147K |
|---|---|
| Datasheet | TDA5147K Download |
| Manufacturer |  NXP Semiconductors |
| Description | 12 V Voice Coil Motor VCM driver and spindle motor drive combination chip |
| Buy | Stock & Price |
FEATURES
Spindle motor driver● Internal 1 A peak current power drivers
● Low Rds(on) 1 Ω max 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 PWM spindle mode
● Provide spindle active dynamic braking mode. Voice coil motor driver
● 0.8 Amp 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 mode operation: enable VCM, retract, and disable. Power monitor and retract circuit
● +5 and +12 V power monitor threshold accuracy ±2%
● Hysteresis on both power monitor comparators
● Precision internal voltage generator ±2%
● Buffered reference voltage output pin QUICK REFERENCE DATA SYMBOL Supply voltage VCCA1 VCCA2 Drivers Ispin(max) IVCM(max) maximum spindle current maximum voice coil motor current − − 1 0.8 − − analog supply voltage 1 analog supply voltage 2 4.5 10.8 5.0 12.0 PARAMETER MIN.
