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TDA5341 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. TDA5341
Description  Brushless DC motor and VCM drive circuit with speed control
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 4 page
background image
1997 Jul 10
4
Philips Semiconductors
Product specification
Brushless DC motor and VCM drive circuit
with speed control
TDA5341
PINNING
SYMBOL
PIN
DESCRIPTION
CAPST
1
external capacitor for starting oscillator
CAPTI
2
external capacitor for timer circuit
CLAMP1
3
external capacitor used to park the heads; must be externally connected to CLAMP2
AMPOUT
4
uncommitted operational amplifier output
AMPIN
5
uncommitted operational amplifier invert input
AMPIN+
6
uncommitted operational amplifier direct input
MOT0
7
motor centre tap input
MOT2
8
motor driver output 2
FREDENA
9
friction reduction mode enable input (active HIGH)
FG
10
frequency generator (tacho) output
BRAKE
11
brake input command (active LOW)
TESTIN
12
test input for power output switch-off (active HIGH)
TP1
13
test purpose 1 (should be left open-circuit)
VEE1
14
ground for the spindle motor drivers
GAINSEL
15
VCM gain adjustment input (switch ON when GAINSEL is LOW)
VDD
16
general power supply
VEE
17
general ground
CAPCDM
18
external capacitor for adaptive commutation delay (master)
CAPCDS
19
external capacitor for adaptive commutation delay (slave)
PRESET
20
set the motor drivers into a fixed state: MOT1 = F (floating), MOT2 = L, MOT3 = H
MOT3
21
motor driver output 3
CAPCPC
22
frequency compensation of the current control
ILIM
23
current limit control input
CNTRL
24
motor control
VDD1
25
power supply 1 for the spindle motor drivers
CLAMP2
26
external capacitor used to park the heads; must be externally connected to CLAMP1
CAPCP
27
external capacitor for the charge pump output
FB1
28
output of the VCM preamplifiers
FB2
29
switchable output of the VCM preamplifier
RETRACT
30
park input command (active LOW)
VEE3
31
ground 3 for the actuator driver
FILTER
32
charge pump output to be connected to an external filter
VCMIN1
33
VCM voltage control input
VCMIN2
34
switchable VCM voltage control input
DPULSE
35
data pulse input of the frequency comparator of the speed control
Vref
36
voltage reference input
VCM+
37
positive output of the VCM amplifier
DATA
38
input data of the serial port (active HIGH)
CLOCK
39
clock input signal to shift DATA into SERIALIN register (active HIGH)
VDD3
40
power supply 3 for the actuator driver




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