m63021fp Mitsumi Electronics, Corp., m63021fp Datasheet - Page 8

• Manufacturer Part Number: m63021fp
• Description: Spindle Motor Actuator Driver
• Manufacturer: Mitsumi Electronics, Corp.

Preliminary
VM3
2
Logic control Situation of loading channel
(Hi impedance)
application.1 (MCU : One port H/Z/L control)
P1
P1
5v
0
Z
Coil
5v
0v
Z
application.1
(One port H/Z/L control)
LO+
LO-
Short brake --> Stop
Forward rotation
Reverse rotation
Vo
P1
R1
SPINDLE MOTOR AND 5CH ACTUATOR DRIVER
=8 x ([LOIN+] – [REF])
Gvo = 8 [v/v]
Vo=[LO+] – [LO-]
(
8
/
Vo= 8x(5[V]-REF[V])
Vo= 0 [V]
Vo= -8x(5[V]-REF[V])
17)
Output
voltage [V]
R2
Output voltage swing
xR2/(R1+R2)
MITSUBISHI SEMICONDUCTORS
xR2/(R1+R2)
LOIN+
REF
[LOIN+] – [REF] (V)
M63021FP
LO+
LO-
+
-
REV990728
Coil