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TDA5149G Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. TDA5149G
Description  12 V Voice Coil Motor VCM driver and spindle motor pre-driver combination chip
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 3 page
background image
1996 May 06
3
Philips Semiconductors
Product speciļ¬cation
12 V Voice Coil Motor (VCM) driver and
spindle motor pre-driver combination chip
TDA5149G
BLOCK DIAGRAMS
Fig.1 Block diagram of the spindle part.
handbook, full pagewidth
MGE657
SAWTOOTH
OSCILLATOR
SERIAL
PORT
VPARK
VCM_CONT1
VCM_CONT2
VGAINSEL
SLEEP
COMMUT. DELAYS
SBRAKE
SDISABLE
SPINMODE
COMMCLOCK
INIT
TRIGGER
CSS2 dis
SPWM comp 1
SPWM comp 2
CSS2 short
CSS1 dis
CSS1 short
LOOP1 select
CHARGE
PUMP
BRAKE
DELAY
22
CSS1
CSS2 23
STOSC 24
FG 57
SCANTEST
56
SCANOUT
25
SENABLE 61
SDATA
59
SCLOCK
60
CLOCK
58
54 VDD
45 H0
3 H1
5 L1
6 H2
8 L2
9 H3
11 L3
4 MOT1
7 MOT2
2 MOT0
10 MOT3
19 ISPIN
13
14
SPINSENSEH
SPINSENSEL
63
62 CAPX2
CAPX1
12 V
CLAMP
to the
VCM
MOT1
MOT2
MOT3
3 k
ā„¦
3 k
ā„¦
1 k
ā„¦
3 k
ā„¦
from the
PWM DAC
Rsense
1
CAPY
IDRIVE
12
BRAKEPOWER
BRAKEDELAY
AGND
DGND
64
16
51
47
VDDA1
VDDD
55
27
from the
POR circuit
to the
LATCH
to the
VCM
DIGITAL
CONTROL
21
RPOS
20
SICOMP
18
SINTIN
15
SISENS
5
Ɨ
INTG
COMP
COMP
BEMF comp 1
BEMF comp 2
BEMF comp 3
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
COMP
COMP
COMP
0.4 V
LACTIVE
LHOLD
TDA5149G
1
2
3
1
2
3
4
5




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