Fujitsu MAV2036RC Manual/User Guide - Page 5
Connection Requirements - driver
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4.3 Connection Requirements (6) Environmental temperature Temperature condition at installed in a cabinet is indicated with ambient temperature measured 30 mm from the disk drive. At designing the system cabinet, consider following points. • Make a suitable air flow so that the DE surface temperature never exceed 60°C. • Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling effect by measuring the surface temperature of specific ICs and the DE. These measurement results must satisfy the temperature condition listed in Table 4.1. • Keeping the DE surface temperature at 50°C or below at ambient temperature 30°C, which is a condition for assuring an MTBF of 1,400,000 hours, requires an air flow of 0.5 m/s or more. Table 4.1 Surface temperature check point and maximum temperature No. Measurement point 1 DE Surface 2 Read channel LSI 3 VCM/SPM Driver 4 HDC 5 MPU Maximum temperature 60°C 80°C 93°C 92°C 90°C Figure 4.5 Surface temperature measurement points C141-E219 4-5