TDA5149G Philips Semiconductors, TDA5149G Datasheet - Page 5

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

Philips Semiconductors
PINNING
1996 May 06
CAPY
MOT0
H1
MOT1
L1
H2
MOT2
L2
H3
MOT3
L3
IDRIVE
SPINSENSEH
SPINSENSEL
SISENS
AGND
I
SINTIN
ISPIN
SICOMP
RPOS
CSS1
CSS2
STOSC
SCANOUT
POR
V
POR5
POR12
AMPIN
AMPIN+
PGND1
AMPOUT
RESETP
RESETA
V
TEMPMON
CLAMP
V
V
ref
DDA1
CM
DDV
CMIN2
12 V Voice Coil Motor (VCM) driver and
spindle motor pre-driver combination chip
SYMBOL
DELAY
ADJ
ADJ
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
charge pump capacitor
motor centre tap input
driver output to gate of upper power FET 1
back EMF comparator input 1
driver output to gate of lower power FET 1
driver output to gate of upper power FET 2
back EMF comparator input 2
driver output to gate of lower power FET 2
driver output to gate of upper power FET 3
back EMF comparator input 3
driver output to gate of lower power FET 3
adjustment for output stage drive current
positive spindle sense amplifier input
negative spindle sense amplifier input
spindle sense amplifier output
general analog ground; note 1
reference current generator output
negative integrator input
positive integrator input, average current adjustment
integrator output
duty cycle modulator input
soft switching capacitor 1
soft switching capacitor 2
sawtooth oscillator capacitor
test output
power-on reset delay capacitor (active LOW)
analog supply voltage 1 (+5 V)
adjustment of POR threshold (for +5 V)
adjustment of POR threshold (for +12 V)
negative input of the uncommitted operational amplifier
positive input of the uncommitted operational amplifier
power ground 1 for VCM DMOS; note 1
uncommitted operational amplifier output
power-on reset digital output with passive pull-up resistor
power-on reset digital output with active pull-up resistor
negative output voltage of the VCM power stage
temperature monitor output
clamp capacitor used for head retraction
power supply for VCM DMOS driver (+12 V)
switchable VCM control input voltage
5
DESCRIPTION
Product specification
TDA5149G