TDA5149G Datasheet, PDF (6/28 Pages) NXP Semiconductors – 12 V Voice Coil Motor VCM driver and spindle motor pre-driver combination chip

Philips Semiconductors
12 V Voice Coil Motor (VCM) driver and
spindle motor pre-driver combination chip
SYMBOL
PIN
I/O
DESCRIPTION
V_CMIN1
41
V_CMSENSEH
42
V_CMSENSEL
43
V_CM+
44
H0
45
VCM_ref
46
BRAKEPOWER 47
PGND2
48
V_ref(o)
49
V_CMSENSOUT
50
BRAKEDELAY
51
LATCHHOLD
52
LATCHACTIV
53
V_DD
54
V_DDD
55
SCANTEST
56
FG
57
CLOCK
58
SDATA
59
SCLOCK
60
SENABLE
61
CAPX2
62
CAPX1
63
DGND
64
I VCM control input voltage
I positive VCM sense amplifier input voltage
I negative VCM sense amplifier input voltage
O positive output voltage of the VCM power stage
O gate control of the isolating power FET
I reference voltage input for the VCM
I/O reservoir capacitor for the brake/park circuitry
− power ground 2 for VCM DMOS; note 1
O reference voltage generator output
O VCM sense amplifier output voltage
I/O powerless brake delay adjustment
O latch hold output
O latch activate output
− general supply voltage (+12 V)
− digital supply voltage (+5 V)
I test mode input
O commutation frequency generator output
I clock for digital timing input
I serial port data input
I serial port clock input
I serial port enable input
I/O charge pump capacitor input/output
I/O charge pump capacitor input/output
− digital ground; note 1
Note
1. The 4 ground pins are tied to the lead frame for better heat dissipation.
Product specification
TDA5149G
1996 May 06
6