1.3 Power Requirements. Fujitsu C141-E090-02EN

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1.3 Power Requirements. Fujitsu C141-E090-02EN | Manualzz

1.2.2

Model and product number

Table 1.2 lists the model names and product numbers.

Table 1.2

Model names and product numbers

Model Name

Capacity

(user area)

Mounting

Screw

Order No.

MPE3102AH 10.24 GB No. 6-32UNC CA05405-B331

MPE3136AH 13.66 GB No. 6-32UNC CA05405-B341

MPE3204AH 20.49 GB No. 6-32UNC CA05405-B361

MPE3273AH 27.32 GB No. 6-32UNC CA05405-B381

Remarks

1.3

(1)

Power Requirements

Input Voltage

+ 5 V ±5 %

+ 12 V ±8 %

(2) Ripple

+12 V +5 V

Maximum 200 mV (peak to peak) 100 mV (peak to peak)

Frequency DC to 1 MHz DC to 1 MHz

C141-E090-01EN 1 - 5

(3) Current Requirements and Power Dissipation

Table 1.3 lists the current and power dissipation.

Table 1.3

Current and power dissipation

Mode of Operation

Model

Spin up

Typical RMS current (*1) [mA]

+12 V

MPE

3136AH

MPE

3204AH

MPE

3273AH

MPE

3102AH

1600

1800 peak

1600

1800 peak

1600

1800 peak

1600

1800 peak

340 340 400 460 Idle (Ready)

(*3)

R/W (On Track)

(*4)

Seek (Random)

(*5)

340

640

340

640

400

670

460

700

Standby

Sleep

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

+5 V

All

Models

540

640 peak

420

450

420

185

185

MPE

3102AH

21.9

MPE

3136AH

21.9

6.2

6.3

9.8

1.0

1.0

Typical Power (*2) [watts]

6.2

6.3

9.8

1.0

1.0

MPE

3204AH

21.9

6.9

7.1

10.1

1.0

1.0

MPE

3273AH

21.9

7.6

7.8

10.5

1.0

1.0

*1 Current is typical rms except for spin up.

*2 Power requirements reflect nominal values for +12V and +5V power.

*3 Idle mode is in effect when the drive is not reading, writing, seeking, or executing any commands. A portion of the R/W circuitry is powered down, the spindle motor is up to speed and the Drive ready condition exists.

*4 R/W mode is defined as 50% read operations and 50% write operations on a single physical track.

*5 Seek mode is defined as continuous random seek operations with minimum controller delay.

1 - 6 C141-E090-01EN

(4) Current fluctuation (Typ.) when power is turned on

[A]

0.5

0.0

[A]

1.5

1.0

0.5

0.0

+5VDC

(0.5A/div)

+12VDC

(0.5A/div)

0 1 2 3 4 5 6 7 8 [S]

Figure 1.1

Current fluctuation (Typ.) when power is turned on

(5) Power on/off sequence

The voltage detector circuit monitors +5 V and +12 V. The circuit does not allow a write signal if either voltage is abnormal. This prevents data from being destroyed and eliminates the need to be concerned with the power on/off sequence.

C141-E090-01EN 1 - 7

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