Fujitsu MHY2120BH Manual De Usuario

 

5-10 

C141-E262 

The disk drive is "Hot Plug Capable" which is based on Serial ATA Revision 2.5. 

It is recommended to use the pre-charge resistor for protection from over current 
at +5V power supply circuit in the host system when the disk drive is hot-
plugged. 
(Refer to the Serial ATA Revision 2.5.) 

The equivalent circuit of +5V power supply at Hot Plugging is in the following 
figure. 

 

It is necessary to choose pre-charge resistor R

L

 value, which is in permissible 

range of  +5V power supply specification at the host system. 

Refer to the equivalent circuit when the optimized value of pre-charge resistor R

L

.  

It is recommended to choose the minimum value which is in permissible range of 
+5V power supply specification at the host system.  Because it is possible that 
rush current occurs again when P8, P9 pin connection after P7 (+5V pre-charge 
pin) connection dependent on the insertion speed.