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1-6 C141-E042-01EN
(3) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Table 1.3 Current and power dissipation
Typical RMS Current Typical Power (*2)
Spin up (*1) 1.0 A Watts 5.0 W
Idle 0.236 A T.B.D T.B.D 1.18 W
R/W (*3) 0.5 A T.B.D T.B.D 2.5 W
Standby 0.076 A T.B.D T.B.D 0.38 W
Sleep 0.03 AT.B.D T.B.D 0.15 W
*1 Current at starting spindle motor.
*2 Power requirements reflect nominal values for +5V power.
*3 At 30% disk accessing.
(4) Current fluctuation (Typ.) at +5V when power is turned on
Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on
(5) Power on/off sequence
The voltage detector circuit monitors +5 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.