Fujitsu MHM2100AT - Mobile 10 GB Hard Drive Product Manual page 27

Device Overview
(3) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Spin up (*1)
Idle
R/W (on track) (*2)
Seek (*5)
Standby
Sleep
Energy
Efficiency (*4)
*1 Current at starting spindle motor.
*2 At 30% disk accessing.
*3 Power requirements reflect nominal values for +5V power.
*4 Energy efficiency based on the Law concerning the Rational Use of Energy
indicates the value obtained by dividing power consumption by the storage
capacity. (Japan only)
*5 The seek average current is specified based on three operations per 100
msec.
(4) Current fluctuation (Typ.) at +5V when power is turned on
1-6
Table 1.3 Current and power dissipation
Typical RMS Current
MHL Series MHM Series
0.9 A 0.9 A
190 mA 160 mA
520 mA 500 mA
490 mA 460 mA
50 mA 50 mA
20 mA 20 mA
—
Typical Power (*3)
MHL Series
4.5 W
0.95 W
2.6 W
2.45 W
0.25 W
0.1 W
— 0.032 W/GB
(rank E)
MHM Series
4.5 W
0.8 W
2.5 W
2.3 W
0.25 W
0.1 W
0.040 W/GB
(rank E / MHM2200AT)
0.040 W/GB
(rank E / MHM2150AT)
0.080 W/GB
(rank D / MHM2100AT)
C141-E104-03EN