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BD7903FS Datasheet(Hoja de datos) 4 Page - Rohm

No. de Pieza. BD7903FS
Descripción  5CH Power Driver for CD-ROM, DVD-ROM
Descarga  16 Pages
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Fabricante  ROHM [Rohm]
Página de inicio  http://www.rohm.com
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 4 page
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BD7903FS
Optical disc ICs
4/16
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Pin descriptions
Pin No.
Pin name
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
FG
HB
SPVM1
HU
HU
+
HV
HV
+
HW
HW
+
V
U
GND
GND
GND
GND
GND
SPGND
W
SPRNF
SPIN
LDIN
CFCerr2
CFCerr1
VINFC
SPVM2
VINTK
VC
Frequency generator output
Hall bias
Spindle driver power supply 1
Hall amp.U negative input
Hall amp.U positive input
Hall amp.V negative input
Hall amp.V positive input
Hall amp.W negative input
Hall amp.W positive input
Spindle driver output V
Spindle driver output U
GND
GND
GND
GND
GND
Spindle driver power ground
Spindle driver output W
Spindle driver current sense
Spindle driver input
Loading driver input
Connection with capacitor for error amplifier
Connection with capacitor for error amplifier
Focus driver input
Spindle driver power supply 2
Tracking driver input
Reference voltage input
Pin No.
Pin name
Function
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
CTKerr1
CTKerr2
CFIL
VNFFC
VMACT
VNFTK
VOTK
+
VOTK
VOFC
+
VOFC
PreGND
GND
GND
GND
GND
GND
PowGND
LDO
LDO
+
SLO1
SLO1
+
CTL1
PreVCC
CTL2
OPOUT
SLIN
SPVCC
Connection with capacitor for error amplifier
Connection with capacitor for error amplifier
Connection with capacitor for spindle loop
Feedback for focus driver
Actuator driver block power supply
Feedback for tracking driver
Tracking driver positive output
Tracking driver negative output
Focus driver positive output
Focus driver negative output
Pre-ground
GND
GND
GND
GND
GND
BTL block power ground
Loading driver negative output
Loading driver positive output
Slide drive negative output
Slide drive positive output
Driver logic control input 1
Loading block power supply
Driver logic control input 2
OP amp output
Slide driver input
Spindle block control power supply
∗ Positive/negative of the output terminals are determined in reference to those of the input terminals.




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