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M56784 fiches techniques PDF

Mitsubishi - SPINDLE MOTOR DRIVER

Numéro de référence M56784
Description SPINDLE MOTOR DRIVER
Fabricant Mitsubishi 
Logo Mitsubishi 





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M56784 fiche technique
MITSUBISHI <CONTROL / DRIVER IC>
M56784FP
SPINDLE MOTOR DRIVER
DESCRIPTION
The M56784FP is a semiconductor integrated circuit in order to
drive the spindle motor.
FEATURES
q Large power dissipation (Power Package).
q 3.3V DSP available.
q The supply voltage with wide range.
q High motor drive current.
q Low saturation voltage. (typical 1.2V at load current 500mA)
q Motor current control for both motor torque directions.
q Reverse torque mode select [SHORT BRAKING, etc].
q Sleep mode. (Zero total current)
q Hall amplifier sensitivity select.
(Minimum voltage: 35mVp-p or 50mVp-p)
q FG signal output terminal.
q Automatic stop select. (Removable function)
q Reverse detected signal pin.
APPLICATION
CD-ROM, DVD, DVD-ROM, DVD-RAM etc.
PIN CONFIGURATION (TOP VIEW)
N.C
W
V
U
RS
MODE3
MODE4
GND
Hw-
Hw+
Hv-
Hv+
Hu-
Hu+
N.C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42 N.C
41 S/S
40 RDS
39 FG
38 CI
37 MODE2
36 MODE1
35
34
33
32 GND
31
30
29
28 VM
27 VCC2
26 EC
25 ECR
24 VCC1
23 HB
22 N.C
Outline 42P9R-D
N.C: no connection
BLOCK DIAGRAM
UVW
432
S/S
41
RS
5
VCC1
24
VM 28
VCC2 27
MODE1 36
MODE2 37
BRAKING
MODE
CHANGE
120°
MATRIX
I/I
Converter
MODE4 7
SENSE
MODE3 6
FG 39
RDS 40
FG
RDS
+-
+-
TSD
+-
Hall
Bias
20 19
Hu+ Hu-
18 17
Hv+ Hv-
16 15
Hw+ Hw-
23 38
HB CI
Vref
V/I Converter
26 25
EC ECR
GND
GND

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