Fujitsu MHX2250BT, Product Manual

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Device Overview
(5) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation (typical).
Table 1.3 Current and power dissipation
Typical RMS Current Typical Power (*3)
Spin up (*1)
0.9 A 4.5 W
Idle (*6)
100 mA 0.50 W
R/W (on track) (*2)
320 mA 1.6 W
Seek (*5)
380 mA 1.9 W
Standby (*6)
26 mA 0.13 W
Sleep (*6)
26 mA 0.13 W
Energy
Efficiency (*4)
—
0.0017 W/GB (rank E / MHX2300BT)
0.0020 W/GB (rank E / MHX2250BT)
*1 Maximum current and power at starting spindle motor.
*2 Current and power level when the operation (command) that accompanies a
transfer of 63 sectors is executed 3 times in 100 ms
*3 Power requirements reflect typical values for +5 V 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.
*6 IPM mode: Slumber mode.
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