motor-driver
motor-driver
motor-driver
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Philips Semiconductors<br />
12 V Voice Coil Motor (VCM) <strong>driver</strong> and<br />
spindle <strong>motor</strong> drive combination chip<br />
Preliminary specification<br />
TDA5147CH<br />
BLOCK DIAGRAMS<br />
handbook, full pagewidth<br />
V CCA12<br />
CPOR<br />
14<br />
PORN<br />
15<br />
V PCNTL<br />
50<br />
RET ADJ<br />
35<br />
SHPWRZ<br />
V V 53 BRKTC<br />
DD DD<br />
16<br />
POR12 SHPWR1<br />
SHPWR2,3<br />
VADJ<br />
POR<br />
DETECTOR<br />
park<br />
PARK<br />
CIRCUITRY<br />
to spindle<br />
section<br />
autopark<br />
UNDER<br />
VOLTAGE<br />
GENERATOR<br />
disable<br />
V V CC5<br />
refout<br />
V ref<br />
59 V CMN<br />
17<br />
POR5 VADJ<br />
TDA5147CH<br />
V CCA12<br />
51 V CMP<br />
52<br />
V refout<br />
R s<br />
V refout<br />
POWER AMPLIFIERS<br />
60<br />
V ISENL<br />
SENSE<br />
1<br />
V<br />
V IPWML<br />
refout<br />
PWM<br />
2 DECODER<br />
V refout<br />
57 V ISENH<br />
V IPWMH<br />
6, 7 54, 55, 56 3 64 49 9 4<br />
47<br />
61<br />
V FLTINP<br />
V FLTOUT V CMINP<br />
V ISENS1<br />
M<br />
GNDSUBB GNDV<br />
V CC1V12<br />
V CC2V12<br />
V CC5<br />
MGG845<br />
Fig.1 Block diagram of voice coil <strong>motor</strong> <strong>driver</strong>.<br />
1997 Jul 09 4
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