User manual MAXTOR ST373453FC VOLUME 1

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah 15K. 3 FC Disc Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST373453FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336753FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST318453FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah 15K. 3 FC Disc Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST373453FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336753FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST318453FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . © 2002, 2003 Seagate Technology LLC. March 2003 Publication number: 100148129, Rev. D Seagate, Seagate Technology, and the Seagate logo are registered trademarks or trademarks of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of Seagate Technology LLC. [. . . ] The +5V and +12V supplies should employ separate ground returns. Where power is provided to multiple drives from a common supply, careful consideration for individual drive power requirements should be noted. Where multiple units are powered on simultaneously, the peak starting current must be available to each device. Parameters, other than spindle start, are measured after a 10-minute warm up. No terminator power. 22 6. 2. 1 Conducted noise immunity Cheetah 15K. 3 FC Product Manual, Rev. D Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector. +5V 0 to 100 kHz 100 kHz to 10 MHz 150mV 100mV +12V 150mV 100mV 6. 2. 2 Power sequencing The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down. 6. 2. 3 Current profiles The +12V and +5V current profiles for the ST373453FC, ST336753FC, and ST318453FC models are shown below in the following figures. T0 T1 T2 T3 Power is applied to the drive. Spindle begins to accelerate under current limiting after performing internal diagnostics. Spindle is up to speed and the Head-Arm restraint is unlocked. Note: All times and currents are typical. See Table 2 for maximum current requirements. Figure 2. Typical ST373453FC drive +12V current profile Cheetah 15K. 3 FC Product Manual, Rev. D 23 Figure 3. Typical ST373453FC drive +5V current profile Figure 4. Typical ST336753FC drive +12V current profile 24 Cheetah 15K. 3 FC Product Manual, Rev. D Figure 5. Typical ST336753FC drive +5V current profile Figure 6. Typical ST318453FC drive +12V current profile Cheetah 15K. 3 FC Product Manual, Rev. D 25 Figure 7. Typical ST318453FC drive +5V current profile 26 6. 3 Power dissipation Cheetah 15K. 3 FC Product Manual, Rev. D ST373453FC Typical power dissipation under idle conditions in 2Gb operation is 12. 7 watts (43. 3 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3. 4123. ST373453FC DC CURRENT/POWER vs THROUGHPUT (1Gb) Random 8 Block Reads 1 . 800 1 . 600 1 . 400 1 8. 00 1 6. 00 1 4. 00 1 2. 00 1 0. 00 8. 00 6. 00 4. 00 0. 0 50. 0 1 00. 0 1 50. 0 200. 0 250. 0 300. 0 350. 0 5Vo lt A 1 Vo lt A 2 Watts Power (watts) Amperes 1 . 200 1 . 000 0. 800 0. 600 0. 400 I/Os per Second Figure 8. ST373453FC DC current and power vs. input/output operations per second ST336753FC Typical power dissipation under idle conditions in 2Gb operation is 11. 0 watts (37. 5 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. [. . . ] Seagate distributors, OEMs and other direct customers should contact their Seagate service center representative for warranty-related issues. Resellers or end users of drive products should contact their place of purchase or one of the Seagate warranty service centers for assistance. Have your drive's "ST" model number and serial number available. Authorized Service Centers In some countries outside the US, you can contact an Authorized Service Center for service. USA/Canada/Latin America Support Services Presales Support Call Center Disc: Tape: Toll-free 1-877-271-3285 1-800-626-6637 Toll-free 1-800-SEAGATE 1-800-SEAGATE Toll-free 1-800-468-3472 Direct dial +405-936-1210 +1-714-641-2500 Direct dial +405-936-1210 +1-714-641-2500 Direct dial +1-405-936-1456 FAX +1-405-936-1683 +1-714-641-2410 FAX +1-405-936-1683 +1-714-641-2410 FAX / Internet +1-405-936-1462 Technical Support Call Center Disc: Tape: Warranty Service Call Center USA, Mexico and Latin America Canada Memofix* 1-800-636-6349 1-800-624-9857 +1-905-660-4936 +1-905-890-3099 Adtech* Brazil MA Centro de Serviços* +1-905-660-4951 www. memofix. com +1-905-890-3977 www. adtech1. com -- +55-21-2509-7267 +55-21-2507-6672 e-mail: centro. de. servicos. brasil@seagate. com * Authorized Service Centers For product-specific phone number Cheetah 15K. 3 FC Product Manual, Rev. D 67 European Support Services For European presales, technical support, and warranty service, dial the toll-free number for your specific country. [. . . ]