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| TDA5147CH Datasheet, PDF (13/32 Pages) NXP Semiconductors – 12 V Voice Coil Motor VCM driver and spindle motor drive combination chip | |||
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Philips Semiconductors
12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip
Preliminary speciï¬cation
TDA5147CH
VCC
threshold
1V
5 µs
hysteresis
slopes 1 µs/V
PORN
tC
MGG849
SLEEP MODE
A sleep mode is used to save power when the spindle
drivers and the VCM drivers are in a disabled state. These
two conditions automatically turn off all drivers and
amplifiers that are not required. The total power dissipation
is approximately 100 mW. The sleep mode is activated
when both the spindle (SCNTL1, 2 and 3 are LOW) and
the VCM are disabled (VPCNTL left open-circuit).
THERMAL SHUTDOWN
When the TDA5147CH junction temperature is greater
than 150 °C all power drivers will be automatically
disabled. This is to ensure that no fire hazard occurs due
to chip overheating.
Fig.7 Trigger pulse requirement.
1997 Jul 09
13
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