TDA5149G Philips Semiconductors, TDA5149G Datasheet - Page 3

• Manufacturer Part Number: TDA5149G
• Description: 12 V Voice Coil Motor VCM driver and spindle motor pre-driver combination chip
• Manufacturer: Philips Semiconductors

Philips Semiconductors
BLOCK DIAGRAMS
1996 May 06
handbook, full pagewidth
12 V Voice Coil Motor (VCM) driver and
spindle motor pre-driver combination chip
SCANTEST 56
SCANOUT
SENABLE 61
SCLOCK 60
CLOCK 58
SDATA 59
STOSC 24
CSS2 23
CSS1
FG 57
22
25
V DDD
55
POR circuit
from the
LHOLD
V DDA1
27
SERIAL
PORT
OSCILLATOR
SAWTOOTH
LATCH
to the
0.4 V
RPOS
21
LACTIVE
INIT
VPARK
VCM_CONT1
VCM_CONT2
VGAINSEL
SLEEP
COMMUT. DELAYS
SBRAKE
SDISABLE
SPINMODE
COMMCLOCK
DGND
64
TRIGGER
AGND
16
COMP
COMP
to the
VCM
1
2
3
4
5
Fig.1 Block diagram of the spindle part.
SPWM comp 2
CSS1 dis
SPWM comp 1
CSS2 dis
CSS2 short
CSS1 short
LOOP1 select
SICOMP
20
BRAKEDELAY
51
INTG
TDA5149G
BRAKE
DELAY
CONTROL
DIGITAL
BRAKEPOWER
47
3
18
SINTIN
1
2
3
BEMF comp 1
BEMF comp 2
BEMF comp 3
IDRIVE
12
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
15
SISENS
COMP
COMP
COMP
5
CHARGE
PUMP
CAPY
1
63
62 CAPX2
54 V DD
45 H0
10 MOT3
19 ISPIN
13
14
11 L3
6 H2
7 MOT2
3 H1
5 L1
8 L2
9 H3
4 MOT1
2 MOT0
SPINSENSEH
CAPX1
SPINSENSEL
3 k
3 k
1 k
3 k
Product specification
12 V
TDA5149G
MOT3
CLAMP
MOT2
R sense
MOT1
MGE657
PWM DAC
from the
to the
VCM