MPC8315CVRADDA datasheet(98/106 Pages) FREESCALE

98 / 106 page

MPC8315E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2

Freescale Semiconductor

Thermal

Accurate thermal design requires thermal modeling of the application environment using computational

fluid dynamics software which can model both the conduction cooling and the convection cooling of the

air moving through the application. Simplified thermal models of the packages can be assembled using the

junction-to-case and junction-to-board thermal resistances listed in the thermal resistance table. More

detailed thermal models can be made available on request.

Heat sink vendors include the following list:

Aavid Thermalloy

603-224-9988

80 Commercial St.

Concord, NH 03301

Internet: www.aavidthermalloy.com

Alpha Novatech

408-749-7601

473 Sapena Ct. #12

Santa Clara, CA 95054

Internet: www.alphanovatech.com

International Electronic Research Corporation (IERC) 818-842-7277

413 North Moss St.

Burbank, CA 91502

Internet: www.ctscorp.com

Table 79. Heat Sinks and Junction-to-Case Thermal Resistance of MPC8315E TEPBGA II

Heat Sink Assuming Thermal Grease

Air Flow

 29 mm TEBGA II

Junction-to-Ambient

Thermal Resistance

AAVID 30 x 30 x 9.4 mm Pin Fin

Natural Convection

14.4

AAVID 30 x 30 x 9.4 mm Pin Fin

0.5 m/s

11.4

AAVID 30 x 30 x 9.4 mm Pin Fin

1 m/s

10.1

AAVID 30 x 30 x 9.4 mm Pin Fin

2 m/s

8.9

AAVID 35 x 31 x 23 mm Pin Fin

Natural Convection

12.3

AAVID 35 x 31 x 23 mm Pin Fin

0.5 m/s

9.3

AAVID 35 x 31 x 23 mm Pin Fin

1 m/s

8.5

AAVID 35 x 31 x 23 mm Pin Fin

2 m/s

7.9

AAVID 43 x 41 x 16.5 mm Pin Fin

Natural Convection

12.5

AAVID 43 x 41 x 16.5 mm Pin Fin

0.5 m/s

9.7

AAVID 43 x 41 x 16.5 mm Pin Fin

1 m/s

8.5

AAVID 43 x 41 x 16.5 mm Pin Fin

2 m/s

7.7

Wakefield, 53 x 53 x 25 mm Pin Fin

Natural Convection

10.9

Wakefield, 53 x 53 x 25 mm Pin Fin

0.5 m/s

8.5

Wakefield, 53 x 53 x 25 mm Pin Fin

1 m/s

7.5

Wakefield, 53 x 53 x 25 mm Pin Fin

2 m/s

7.1

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