BD7905BFS Ver la hoja de datos (PDF) - ROHM Semiconductor
Número de pieza
componentes Descripción
fabricante
BD7905BFS Datasheet PDF : 18 Pages
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Optical disc ICs
BD7905BFS
!Pin descriptions
Pin No. Pin name
Function
Pin No. Pin name
Function
1
HU+
Hall amp. U positive input
28
SLIN1 Sled driver 1 input
2
HU−
Hall amp. U negative input
29
SLIN2 Sled driver 2 input
3
HV+
Hall amp. V positive input
30
SLVDD Sled driver PowerMOS pre-supply
4
HV−
Hall amp. V negative input
31 SLRNF1 Sled driver 1 current sense
5
HW+ Hall amp. W positive input
32 SLRNF2 Sled driver 2 current sense
6
HW− Hall amp. W negative input
33
SPCNF Spindle driver feedback filter
7
HB
Hall bias
34
SLO2− Sled driver 2 negative output
8
PGND1 Spindle driver power ground 1
35
SLO2+ Sled driver 2 positive output
9
U
Spindle driver output U
36
SLO1− Sled driver 1 negative output
10
SPVM1 Spindle driver power supply 1
37
SLO1+ Sled driver 1 positive output
11
V
Spindle driver output V
38
AGND BTL block and sled driver power ground
12
GND GND
39
GND GND
13
GND GND
40
GND GND
14
GND GND
41
GND GND
15
GND GND
42
GND GND
16
GND GND
43
GND GND
17 PGND2 Spindle driver power ground 2
44
AVM Actuator driver block power supply
18
W
Spindle driver output W
45
FCO− Focus driver negative output
19
SPVM2 Spindle driver power supply 2
46
FCO+ Focus driver positive output
20 SPRNF Spindle driver current sense
47
TKO− Tracking driver negative output
21
FG
Frequency generator output
48
TKO+ Tracking driver positive output
22
CTL1 Driver logic control input 1
49
LDO− Loading driver negative output
23
CTL2 Driver logic control input 2
50
LDO+ Loading driver positive output
24
SPIN Spindle driver input
51
VCC
BTL pre and Loading power supply
25
DGND PWM block pre-ground
52
TKIN Tracking driver input
26
LDIN Loading driver input
53
FCIN Focus driver input
27
VC
Reference voltage input
54
DVCC
∗ Positive/negative of the output terminals are determined in reference to those of the input terminals.
PWM block control power supply
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