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Computerized

Analysis & Simulation Ltd.

Page 3 of 23

Ref: w06e048d.doc

CAS Ltd. - P.O.B. 7651, Haifa 31076 - ISRAEL

Tel: 972 4 8580024 Fax: 972 4 8580025 E-mail: [email protected] Web: www.cas.co.il

Abstract

The document summarizes thermal analysis for the mSSD UATA 5000 1.8” CG with

ZIF connector - "Flash Disk Module"

The main aim is to check whether the current design meets thermal design requirements.

The analysis results are temperatures distribution figures and components case and

junction temperatures.

The analysis results shows that all the components checked, are below the maximum

allowable temperatures based on the thermal demand T

well

=70

Содержание SSD UATA 5000 1.8"

Страница 1: ...Computerized Analysis Simulation Ltd Thermal Analysis SSD UATA 5000 1 8 with ZIF connector Flash Disk Module For SanDisk October 2006 Ref w06e048b doc ...

Страница 2: ...il Web www cas co il Table of contents ABSTRACT 1 SCOPE 4 2 APPLICABLE DOCUMENTS 4 3 THE FLASH DISK DESCRIPTION 4 3 1 THE FLASH DISK DESCRIPTION 4 4 BOUNDARY CONDITION AND ASSUMPTIONS 10 4 1 BOUNDARY CONDITION 10 4 2 MATERIALS 10 5 THE THERMAL MODEL 11 5 1 CFD AND FINITE VOLUME MODEL 11 5 2 THE THERMAL MODEL STRUCTURE 12 6 ANALYSIS RESULTS 17 7 CONCLUSIONS 23 ...

Страница 3: ...ermal analysis for the mSSD UATA 5000 1 8 CG with ZIF connector Flash Disk Module The main aim is to check whether the current design meets thermal design requirements The analysis results are temperatures distribution figures and components case and junction temperatures The analysis results shows that all the components checked are below the maximum allowable temperatures based on the thermal de...

Страница 4: ...s case and junction temperatures 2 Applicable Documents 1 J P Holman Heat Transfer McGraw Hill 1989 2 D S Steinberg Cooling Techniques for Electronic Equipment Wily Inter Science 1980 3 Kraus A D and Bar Cohen A Thermal Analysis and Control of Electronic Equipment McGraw Hill 1983 4 Coolit user manual DAAT Crop 2005 3 The Flash Disk Description 3 1 The Flash Disk description The Flash disk module ...

Страница 5: ...wer dissipations Component Name Designation Number Quantity Power Total Power W W 1 Flash U5 U12 U105 U112 16 0 04 0 64 2 E3 U3 1 0 162 0 162 3 TI transceiver U1 U4 U101 U104 8 0 0025 0 02 4 DC DC U2 1 0 006 0 010 5 Oscillator Y1 1 0 018 0 018 TOTAL 0 850 Notes a Flash transceiver and E3 are working in 100 duty cycle in high performance Figure 3 1 1 The general mechanical description top side ...

Страница 6: ... of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 3 1 2 The general mechanical description Bottom side Figure 3 1 3 The Memory card PS from bottom side ...

Страница 7: ...td Page 7 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 3 1 4 The CPU card CS from bottom side Figure 3 1 5 The CPU card pad from top side ...

Страница 8: ...d Page 8 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 3 1 6 The CPU card PS from top side Figure 3 1 7 The memory card CS and PS placement ...

Страница 9: ... Analysis Simulation Ltd Page 9 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 3 1 8 The CPU card CS and PS placement ...

Страница 10: ... Fax 972 4 8580025 E mail cas cas co il Web www cas co il 4 Boundary Condition and Assumptions 4 1 Boundary condition Boundary conditions Temperature Tw 70 o C measured on the top cover at the center Altitude 3048m 4 2 Materials body Plastic K 0 29 W m C Covers stainless steel K 37 W m C Thermal Pad T global H48 2 K 2 W m C ...

Страница 11: ...radiation in electronic systems The Coolit model is built from an enclosure which represents the mathematical control volume This volume is divided to a finite volume number for which all the 5 coupled mathematical equations are solved The solution of those equations gives the temperature field the air velocity field and the pressure field for every cell finite volume in the enclosure The model in...

Страница 12: ...td P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il 5 2 The Thermal Model Structure Figure 5 2 1 The thermal model general isometric view from top Figure 5 2 2 The CPU card PS side and the Mylar layer view from top side ...

Страница 13: ...48d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 5 2 3 The CPU card PS side view from top side Figure 5 2 4 The Memory card CS and the plastic frame view from top side CPU card hidden ...

Страница 14: ... CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 5 2 5 The Memory card CS view from top side CPU card and plastic frame are hidden Figure 5 2 6 The thermal model general isometric view from bottom ...

Страница 15: ...f w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 5 2 7 The Memory card PS and the thermal Pad view from bottom side Figure 5 2 8 The Memory card PS view from bottom side ...

Страница 16: ...48d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 5 2 9 The CPU card CS and thermal Pad view from bottom side Figure 5 2 10 The CPU card CS and the plastic frame view from bottom side ...

Страница 17: ...L Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il 6 Analysis Results The analysis results are shown in this paragraph Each figure shows the temperature distribution in 0 C the legends shows the different temperatures Figure 6 1 1 Temperature distribution isometric view Top side ...

Страница 18: ...Simulation Ltd Page 18 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 6 1 2 Temperature distribution isometric view bottom side ...

Страница 19: ...imulation Ltd Page 19 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 6 1 3 Temperature distribution isometric view Memory card CS ...

Страница 20: ...imulation Ltd Page 20 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 6 1 4 Temperature distribution isometric view Memory card PS ...

Страница 21: ...Simulation Ltd Page 21 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 6 1 5 Temperature distribution isometric view CPU card CS ...

Страница 22: ...sis Simulation Ltd Page 22 of 23 Ref w06e048d doc CAS Ltd P O B 7651 Haifa 31076 ISRAEL Tel 972 4 8580024 Fax 972 4 8580025 E mail cas cas co il Web www cas co il Figure 6 1 6 Temperature distribution Side cross section ...

Страница 23: ...sceiver U1 U4 U101 U104 0 0025 71 Ta 85 4 DC DC U2 0 01 70 7 Ta 85 5 Oscillator Y1 0 018 70 5 Ta 70 7 Conclusions The design is reasonable the components are within their max allowable temperature The unit is very dense all major gap card to card card to structure are closed by thermal pads Due to small power consumption less then 1 w and the small thermal density there are no major hot spots on t...

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