WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 457

• Manufacturer Part Number: WG82574L S LBA8
• Manufacturer: Intel

Specifications of WG82574L S LBA8

• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Compliant

Thermal Design Considerations—82574 GbE Controller
Table 95.
14.11
14.12
Reliability Validation
Measurements for Thermal Specifications
Determining the thermal properties of the system requires careful case temperature
measurements. Guidelines for measuring 82574 case temperature are provided in
Section
Case Temperature Measurements
Maintain 82574 Tcase at or below the maximum case temperatures listed in
ensure functionality and reliability. Special care is required when measuring the case
temperature to ensure an accurate temperature measurement. Use the following
guidelines when making case measurements:
Care must be taken to avoid introducing errors into the measurements when
measuring a surface temperature that is a different temperature from the surrounding
local ambient air. Measurement errors might be due to a poor thermal contact between
the thermocouple junction and the surface of the package, heat loss by radiation,
convection, conduction through thermocouple leads, and/or contact between the
thermocouple cement and the heat-sink base (if used).
• Measure the surface temperature of the case in the geometric center of the case
• Calibrate the thermocouples used to measure Tcase before making temperature
• Use 36-gauge (maximum) K-type thermocouples.
top.
measurements.
14.12.
1. Performed the above tests on a sample size of at least 12 assemblies from three lots of
2. Additional pass/fail criteria can be added as necessary.
Mechanical shock
Random Vibration
High-temperature
life
Thermal cycling
Humidity
material (total = 36 assemblies).
Test
1
50 G, board level 11 ms, 2 shocks/axis
7.3 G, board level 45 minutes/axis, 50
to 2000 Hz
+85 °C 2000 hours total
Checkpoints occur at 168, 500, 1000,
and 2000 hours
Per-target environment (for example,
-40 °C to +85 °C) 500 cycles
85% relative humidity 85 °C, 1000
hours
Requirement
Visual and electrical check
Visual and electrical check
Visual and mechanical check
Visual and mechanical check
Visual and mechanical check
Pass/Fail Criteria
Table 93
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