M56787FP Datasheet, PDF (1/8 Pages) Mitsubishi Electric Semiconductor – SPINDLE MOTOR DRIVER

MITSUBISHI <CONTROL / DRIVER IC>
M56787FP
SPINDLE MOTOR DRIVER
DESCRIPTION
The M56787FP is a semiconductor integrated circuit in order to
drive the spindle motor.
FEATURES
q Low motor echo noise.
q 3.3V DSP available.
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.
APPLICATION
CD-ROM, DVD, DVD-ROM, DVD-RAM etc.
PIN CONFIGURATION (TOP VIEW)
N.C 1
N.C 2
S/S ³
FGS 4
FG 5
CI 6
BRS 7
8
9
10
GND ₁₁
42 N.C
41 N.C
40 _W
39 V
38 U
37 MGND
36 TP
35
34
33
32 ^GND
12
31
13
14
RS 15
VCC2 16
EC 17
ECR 18
VCC1 19
HB 20
N.C 21
30
29
28 Hw-
27 Hw+
26 Hv-
25 Hv+
24 ^Hu-
23 Hu+
22 N.C
Outline 42P9R-A
N.C: no connection
BLOCK DIAGRAM
U
V
W MGND ^S/S
38
39
40
37
3
CI 6
CURRENT
SENSE & LIMIT
RS ¹⁵
VCC2 ¹⁶
VCC1
19
GND
BRS ₇
BRAKING
MODE
CHANGE
REVERSE
DETECT
FG 5
FGS 4
FG
&
SELECT
120˚
MATRIX
+
-
+
-
+
-
23 24
Hu+ Hu-
25 26
Hv+ Hv-
27 28
Hw+ Hw-
GND
TSD
HALL
BIAS
20
36
HB
TP
CONTROL
17
18
EC
ECR
1 N.C
2 N.C
21 N.C
22 N.C
41 N.C
42 N.C