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TDA5147CH

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

Philips Electronics 

Philips Semiconductors

12 V Voice Coil Motor (VCM) driver and

spindle motor drive combination chip

Preliminary specification

TDA5147CH

SYMBOL

PARAMETER

CONDITIONS

PWM decoder; pins VIPWML and VIPWMH

VIH

VIL

fPWM

HIGH level input voltage

LOW level input voltage

frequency range at the inputs of CFLTINP = 1.8 nF

the PWM

TPWM

PWM pulse width

Sense resistor amplifier; pins SISENL and SISENH

VCS

common mode input sense

voltage

RSENSE spindle sense resistor

Power-on reset generator

CPORN Power-on reset capacitor

see Fig.6

VCM PWM filter

CVFLTINP filter capacitor

VCM driver

RSENSE VCM sense resistor

MIN.

3.0

−

−

25

0

−

−

−

−

Electrical characteristics

VCC5 = 5 V; VCCS12 = VCCA2 = VCCV = 12 V; Tamb = 0 to 70 °C.

SYMBOL

PARAMETER

CONDITIONS

MIN.

Analog supply current (nominal voltage)

ICC5

analog supply current 1 linear (no spindle or VCM

−

load)

sleep mode (no spindle or

−

VCM load)

ICC12

analog supply current 2 linear (no spindle or VCM

−

load)

sleep mode (no spindle or

−

VCM load) sense resistor

output

sleep mode (no spindle or

−

VCM load) sense resistor input

PDISS

total power dissipation

sleep mode

−

Voltage booster; pin BSTFLT

VwCP

charge pump output

nominal voltages

18.2

voltage

ICHARGE charge pump output

current

voltage drop of 100 mV across −

booster

TYP.

−

−

−

−

−

0.33

220

1.8

0.33

TYP.

5.0

3.0

15

2.3

6.0

−

19.2

1.5

MAX.

−

2.0

625

−

2

−

−

−

−

MAX.

8.0

−

33

−

−

150

19.8

−

UNIT

V

V

kHz

ns

V

Ω

nF

nF

Ω

UNIT

mA

mA

mA

mA

mA

mW

V

mA

1997 Jul 09

17

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