Samsung SFD-321B 2.4 Power Supply

SEMA ELECTRONICS CO.,LTD

FLOPPY DISK DRIVE SPECIFICATION

PAGE 8

MODEL SFD-321B

2.4 Power Supply

<Note>

(*1) Typical values are specified at 5.0 V

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

ITEM SPECIFICATION

Required Power D.C. 5 V ±10 %

AllowableRippleVoltage 100 mVp-p (including spike noise)

Power

Consumption

Operating Mode

Average Current Average Power

Typ. Typ.

Stand - by 2mA 10mW

Read 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 Typ.0.7 A Typ.

500 ms M ax.

+5 V (*1)

Current (A)

2mA

18 ms Max.

0.3 A

Stand-by

(*2)

Spindle motor ON Read /

Write

Seek

Contents

Main OEM MANUAL SFD-321B 3.5inch DUAL DENSITY MICRO FLOPPY DISK DRIVE SPECIFICATIONS FDD Page FLOPPY DISK DRIVE SPECIFI CATION 1. INTRODUCTION PAGE 4 MODEL SFD-321B 2. GENERAL SPECIFICATIONS 2.1 Performance FLOPPY DISK DRIVE SPE CIFICATION * Read/Writ e Compensation : 125ns i s recommended 2.2 Environmental Condi tions 2.3 Reliability 2.4 Power Supply 2.5 Physical Specifi cations Page Page Page 4. ELECTRICAL INTERFACE 4.1 Signal Interface 4.2 Power Int erface FLOPPY DISK DRIVE SPECI FICATION 4.3 Interface Connectors Page 5. SIGNAL CHARACTERISTICS 5.1 Signal Level 5.2 Recommended Interface Circuit 5.3 Input Signals Page 5.4 Output Signals Page Page FLOPPY DISK DRIVE SPECIFICATION PAGE 22 MODEL SFD-321B 6.2 Read / Write Operation Timing 6. TIMING DIAGRAM 6.1 Seek Operation Timing FLOPPY DISK DRIVE SPECIFICATION 7. SAFETY STANDARDS SAMSUNG ELECTRO-MECHANICS CO.,LTD. FLOPPY DISK DRIVE SPECI FICATION 8. PACKAGING DESCRIPTION 8.1 Label Descript ion Page Page FLOPPY DISK DRIVE SPECIFICATION 9. OPTION SELECTION 9.1 Trace Options 9.2 Other Options (Buyer Sel ection)