Electrical Characteristics; Current Requirements And Power Dissipation; Input Voltage Requirements; Ripple - Western Digital Blue WD20SPZX Technical Reference Manual

2.4

Electrical Characteristics

2.4.1

Current Requirements and Power Dissipation

For electrical specifications use the table below:
Operating Mode
Spinup (max)
Read (average)
Write (average)
Seek (average)
Operating Mode
Idle - Active Mode (average)
Idle - Low Power Mode (average)
Standby (average)
Sleep (average)
1
All values are typical (25°C and 5V input) except where specified as maximum, ± 10%.
2.4.2

Input Voltage Requirements

The input voltage requirement for these drives is +5.0V ± 5%.
2.4.3

Ripple

Maximum
Frequency
2.4.4

ESD

The ESD characteristics are determined at room ambient conditions with nominal
power supply settings, unless otherwise specified.
Op-System Level
Direct contact discharges
Direct air discharges
Indirect contact discharges (VCP & HCP)
Indirect air discharges (VCP & HCP)
Non-Op Drive Level
Direct contact discharges
Direct air discharges
Specifications
1
Current
5 VDC
1 A
330 mA
330 mA
495 mA
POWER MANAGEMENT COMMANDS
1
Current
5 VDC
275 mA
100 mA
20 mA
20 mA
+5 VDC
100 mV (peak-to-peak)
10 KHz - 30 MHz
Minimum
8 kV
15 kV
8 kV
15 kV
8 kV
15 kV
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1
Power
5.0 W
1.7 W
1.7 W
2.5W
1
Power
1.4 W
0.5 W
0.1 W
0.1 W