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) | |||
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SATA interface | Gen1 (1.5 Gbps) |
| Gen2 (3.0 Gbps) | Gen1 (1.5 Gbps) | Gen2 (3.0 Gbps) |
transfer speed |
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Spin up (*1) | 1.1 A |
| 1.1 A | 5.5 W | 5.5 W |
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Idle (*6) | 160 mA |
| 160 mA | 0.80 W | 0.80 W |
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R/W (on track) | 420 mA |
| 460 mA | 2.1 W | 2.3 W |
(*2) |
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Seek (*5) | 460 mA |
| 500 mA | 2.3 W | 2.5 W |
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Standby (*6) | 26 mA |
| 26 mA | 0.13 W | 0.13 W |
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Sleep (*6) | 26 mA |
| 26 mA | 0.13 W | 0.13 W |
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| e rank (0.0025 W/GB): MHZ2320BJ | |
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| e rank (0.0032 W/GB): MHZ2250BJ | |
Energy |
| ⎯ | e rank (0.0040 W/GB): MHZ2200BJ | ||
Efficiency (*4) |
| d rank (0.0050 W/GB): MHZ2160BJ | |||
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| d rank (0.0067 W/GB): MHZ2120BJ | |
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| d rank (0.0100 W/GB): MHZ2080BJ | |
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| *1 Maximum current and power at starting spindle motor. |
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| *2 Current and power level when the operation (command) that accompanies a | ||||
| transfer of 63 sectors is executed 3 times in 100 ms |
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*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.