M56786FP Datasheet Text
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.
PIN CONFIGURATION (TOP VIEW)
ECR 1 2 3 4 5 6 7 8 9 42 41 40 39 38 37 36 35 34 ININ+ MUTE OUTVDD+ VDDOUT+
Features q q q q q q q q q q q q q 3.3V DSP available. Low power dissipation & low motor echo noise. Large power dissipation package(Power Package). High motor drive current . Wide dynamic range. Motor current control for both motor torque directions. Reverse torque mode select [SHORT BRAKING,etc]. Sleep mode. FG signal output terminal. FG pulse select. Automatic stop. Low saturation voltage Wide power supply voltage range(4.5V- 13.2V)
EC S/S BRS FGS FG VCC1
M56786FP
10 GND 11 12 13 14 HB Hu+ HuHv+ HvHw+ Hw15 16 17 18 19 20 21
33 32 31 30 29 28 27 26 25 24 23 22 U V W TP CI RS VCC2 GND
APPLICATION
CD-ROM, DVD,DVD-ROM,DVD-RAM etc.
Outline 42P9R-D
BLOCK DIAGRAM
U 28 CI 24 CURRENT SENSE & LIMIT GND V 27 W 26 S/S 3 40 MUTE EC 2 ECR 1 VCC1 7 8 to 14
CONTROL
GND
RS VCC2
23 22
29 to 35
R 4 BRS BRAKING MODE CHANGE
R VDD+
GND
120° MATRIX SPM BIAS Sleep CH1 BIAS
VDD-
- + VCC2 + + X8 VCC2 B2 41 IN+ 25 TP 39 37 38 VDD+
REVERSE DETECT spm
36
OUT+...