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TDA5149G Datasheet(PDF) 5 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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 5 page
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1996 May 06
5
Philips Semiconductors
Product speciļ¬cation
12 V Voice Coil Motor (VCM) driver and
spindle motor pre-driver combination chip
TDA5149G
PINNING
SYMBOL
PIN
I/O
DESCRIPTION
CAPY
1
I/O
charge pump capacitor
MOT0
2
I
motor centre tap input
H1
3
O
driver output to gate of upper power FET 1
MOT1
4
I
back EMF comparator input 1
L1
5
O
driver output to gate of lower power FET 1
H2
6
O
driver output to gate of upper power FET 2
MOT2
7
I
back EMF comparator input 2
L2
8
O
driver output to gate of lower power FET 2
H3
9
O
driver output to gate of upper power FET 3
MOT3
10
I
back EMF comparator input 3
L3
11
O
driver output to gate of lower power FET 3
IDRIVE
12
I
adjustment for output stage drive current
SPINSENSEH
13
I
positive spindle sense ampliļ¬er input
SPINSENSEL
14
I
negative spindle sense ampliļ¬er input
SISENS
15
O
spindle sense ampliļ¬er output
AGND
16
āˆ’
general analog ground; note 1
Iref
17
O
reference current generator output
SINTIN
18
I
negative integrator input
ISPIN
19
I
positive integrator input, average current adjustment
SICOMP
20
O
integrator output
RPOS
21
I
duty cycle modulator input
CSS1
22
I/O
soft switching capacitor 1
CSS2
23
I/O
soft switching capacitor 2
STOSC
24
I/O
sawtooth oscillator capacitor
SCANOUT
25
O
test output
PORDELAY
26
I/O
power-on reset delay capacitor (active LOW)
VDDA1
27
āˆ’
analog supply voltage 1 (+5 V)
POR5ADJ
28
O
adjustment of POR threshold (for +5 V)
POR12ADJ
29
O
adjustment of POR threshold (for +12 V)
AMPIN
āˆ’
30
I
negative input of the uncommitted operational ampliļ¬er
AMPIN+
31
I
positive input of the uncommitted operational ampliļ¬er
PGND1
32
āˆ’
power ground 1 for VCM DMOS; note 1
AMPOUT
33
O
uncommitted operational ampliļ¬er output
RESETP
34
O
power-on reset digital output with passive pull-up resistor
RESETA
35
O
power-on reset digital output with active pull-up resistor
VCMāˆ’
36
O
negative output voltage of the VCM power stage
TEMPMON
37
O
temperature monitor output
CLAMP
38
I/O
clamp capacitor used for head retraction
VDDV
39
āˆ’
power supply for VCM DMOS driver (+12 V)
VCMIN2
40
I
switchable VCM control input voltage




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