Computer Drive User Manual

SEMA ELECTRONICS CO.,LTD
FLOPPY DISK DRIVE SPECIFICATION
PAG E 8
MODEL
SFD-321B
2.4 Power Supply
<Note>
( *1) Typical values are specified at 5.0 V
( *2) Stand-by : Under the conditio n that all input lines are inactive.
ITEM SPECIFICATION
Req uire d Po wer D.C. 5 V
±
10 %
AllowableRippleVoltage 100 mV
p-p
(including spike noise)
Power
Consumption
Op erating Mode
Average Current Average Power
Typ. Typ.
Stand - by 2mA 10mW
Re ad Operation 0.3 A 1.5 W
Write Operation 0.3 A 1.5 W
Seek Operation ( 3 ms) 0.7 A 3.5 W
Drive Motor Start 0.7 A 3.5 W
0.7 A T yp.0.7 A T yp.
500 ms Max.
+5 V (*1 )
Current (A)
2mA
18 ms Max.
0.3 A
Stand-by
(*2)
Spindle motor ON Read /
Write
Seek