FLOPPY DISK DRIVE SPECIFICATION

PAGE

8

 

 

MODEL

SFD-321B

 

 

2.4 Power Supply

 

I T E M

 

SPECIFICATION

 

 

 

 

 

 

Required Power

D.C. 5 V ± 10 %

 

 

 

 

 

 

Allowable Ripple Voltage

100 mVp-p(including spike noise)

 

 

 

 

 

Operating Mode

Average Current

Average Power

 

 

 

 

 

 

Typ.

Typ.

 

 

 

 

 

 

 

Stand - by

2 mA

10mW

 

 

 

 

 

 

Power

Read Operation

0.3

A

1.5

W

Consumption

 

 

 

 

 

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

 

 

 

 

 

 

+5 V (*1)

0.7 A Typ.

Current (A)

 

 

500 ms Max.

2 mA

 

Stand-by

Spindle motor ON

(*2)

 

0.3 A

Read /

Write

0.7A Typ.

18 ms Max.

Seek

<Note>

(*1) Typical values are specified at 5.0 V

(*2) Stand-by : Under the condition that all input lines are inactive.

SEMA ELECTRONICS CO.,LTD

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Samsung SFD-321B specifications Power Supply