TDA5341 Datasheet, PDF (3/28 Pages) NXP Semiconductors – Brushless DC motor and VCM drive circuit with speed control

Philips Semiconductors
Brushless DC motor and VCM drive circuit
with speed control
BLOCK DIAGRAM
Product specification
TDA5341
handbook, full pagewidth
CAPXA CAPXB CAPYA CAPYB
61
59
62
63
CNTRL CAPCPC
24
22
ILIM
23
27
CAPCP
9
FREDENA
12
TESTIN
18
CAPCDM
19
CAPCDS
2
CAPTI
1
CAPST
11
BRAKE
10
FG
58
FMOT
39
CLOCK
38
DATA
42
ENABLE
57
RESET
48
ROSC
35
DPULSE
30
RETRACT
33
VCMIN1
34
VCMIN2
36
Vref
15
GAINSEL
UPPER VOLTAGE
CONVERTER
THERMAL
SWITCH
CONTROL
AMPLIFIER
CURRENT
LIMIT
CONTROL
POWER 1
20
PRESET
60
MOT1
ADAPTIVE
COMMUTATION
DELAY
TIMING
OSCILLATOR
START
OSCILLATOR
BRAKE
CONTROLLER
COMMUTATION
AND
OUTPUT
DRIVING
LOGIC
POLES
DIVIDER
brake
POWER 2
POWER 3
COMPARATORS
BAND GAP 2
UNDER-VOLTAGE
DETECTOR
SERIAL
PORT
PROGRAMMING
FREQUENCY
DIVIDER
BAND GAP 1
sleep
fill
DIGITAL
FREQUENCY
COMPARATOR
park
VCM
PREAMPLIFIER
BRAKE
AFTER PARK
CHARGE
PUMP
SENSE
AMPLIFIER
VCM
H-BRIDGE
TDA5341
8
MOT2
21
MOT3
7
MOT0
3
CLAMP1
26
CLAMP2
43
RESETOUT
44
UVDIN1
54
UVDIN2
46
BRAKEDELAY
4
AMPOUT
5
AMPIN−
6
AMPIN+
32
FILTER
53
SENSEOUT
52 _SENSEIN+
51
SENSEIN−
37 _VCM+
45 _VCM−
28
FB1
29
FB2
50
14
55
31
49
17
25
64
40
16
41
VEED VEE1 VEE2 VEE3 VEE4 VEE VDD1 VDD2 VDD3 VDD VDDD
MGE817
Fig.1 Block diagram.
1997 Jul 10
3