TDA5341 Datasheet, PDF (24/28 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
APPLICATION INFORMATION
Product specification
TDA5341
handbook, full pagewidth
+5 V
C2 C1
R1
to micro-
controller
VDD1 VDD2 VDD3 VDD VDDD
25 64 40 16 41
CNTRL ₂₄
FILTER
32
FREDENA
9
CLOCK
39
DATA
38
ENABLE ₄₂
RESET
57
ROSC
48
TESTIN
12
RESETOUT ₄₃
BRAKE
11
FG
10
FMOT
58
DPULSE
35
TDA5341
CLAMP1 CLAMP2
3
26
60 ^MOT1
8 ^MOT2
21 ^MOT3
7 ^MOT0
23 ^ILIM
CAPCPC
22
UVDIN1
44
UVDIN2
54
30 ^RETRACT
GAINSEL
15
VCM−
45
SPINDLE
MOTOR
+5 V
CAPCP ₂₇
CAPXA
61
CAPXB
59
CAPYA
62
CAPYB ₆₃
CAPCDM ₁₈
CAPCDS
19
CAPTI
2
CAPST
1
50 14 55 31 49 17 36
VEED VEE1 VEE2 VEE3 VEE4 VEE Vref
VCM+
Rs
37
51 ^{SENSEIN−}
SENSEIN+
52
SENSEOUT ^Rf
53
VCMIN1
33
FB1
CL1
28
VCMIN2
34
FB2
CL2
29
BRAKEDELAY
46
RIN1 _input
RIN2
MGE826
1997 Jul 10
Fig.11 Application diagram of the TDA5341 in a hard disk drive.
24