M56786FP Datasheet, PDF (1/10 Pages) –

MITSUBISHI <CONTROL / DRIVER IC>
M56786FP
SPINDLE MOTOR AND 1CH ACTUATOR DRIVER
DESCRIPTION
The M56786FP is a semiconductor integrated circuit in order to
drive the spindle motor and 1ch actuator.
FEATURES
q 3.3V DSP available.
q Low power dissipation & low motor echo noise.
q Large power dissipation package(Power Package).
q High motor drive current .
q Wide dynamic range.
q Motor current control for both motor torque directions.
q Reverse torque mode select [SHORT BRAKING,etc].
q Sleep mode.
q FG signal output terminal.
q FG pulse select.
q Automatic stop.
q Low saturation voltage
q Wide power supply voltage range(4.5V–13.2V)
APPLICATION
CD-ROM, DVD,DVD-ROM,DVD-RAM etc.
PIN CONFIGURATION (TOP VIEW)
ECR ₁
EC 2
S/S 3
BRS 4
FGS 5
FG 6
VCC1 7
8
9
10
GND ₁₁
12
13
14
HB 15
Hu+ 16
Hu- 17
Hv+ ¹⁸
Hv- 19
Hw+ 20
Hw- ²¹
42 ^IN-
41 IN+
40 MUTE
39 OUT-
38 VDD+
37 VDD-
36 OUT+
35
34
33
GND
32
31
30
29
28 U
27 V
26 W
25 TP
24 CI
23 RS
22 VCC2
Outline 42P9R-D
BLOCK DIAGRAM
U
CI 24
28
CURRENT
SENSE & LIMIT
RS 23
VCC2 22
4
BRS
BRAKING
MODE
CHANGE
REVERSE
DETECT
6
FG
5
FGS
FG
&
SELECT
+
-
16 17
Hu+ Hu-
V
27
120°
MATRIX
+
-
18 19
Hv+ Hv-
W
S/S
MUTE
26
3 40
EC ECR
21
VCC1
7
GND
CONTROL
R
R
SPM
BIAS
VDD-
CH1
BIAS
Sleep
VDD+
-+
VCC2
+
-
CH1
spm
+
-
ch1
TSD
HALL
BIAS
X8
VCC2
+
-
VCC2
B1
B2
20 21
15
42
41
25
Hw+ Hw-
HB
IN-
IN+
TP
GND
GND
38 ^VDD+
36 ^OUT+
39 ^OUT-
37 ^VDD-