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ERTEC Fiches technique(PDF) 33 Page - Renesas Technology Corp

No de pièce ERTEC
Description  Enhanced Real-Time Ethernet Controller with 32-bit RISC CPU Core
PDF  51 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ERTEC Fiches technique(HTML) 33 Page - Renesas Technology Corp

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Data Sheet A17989EE2V0DS00
µPD800261
2.3 Thermal Characteristics
Table 2-3: Thermal Characteristics of Package
Parameter
Symbol
Airflow (m/s)
Unit
00.2
1
2
Thermal resistance junction to ambientNote 1
Θja
30
27
23
21
K/W
Thermal resistance junction to top center of
the package surfaceNote 1
Ψjt
0.2
0.3
0.6
0.8
K/W
Thermal resistance top center of the package
surface to ambientNote 1
Ψta
29.8
26.7
22.4
20.2
K/W
Thermal resistance junction to caseNote 2
Θjc
5.2
5.2
5.2
5.2
K/W
Maximum case temperature
Tcmax
105
°C
Notes: 1. The parameters are valid, if no heat sink is used and a PCB with at least 4 layers and massive
ground and power planes.
2. The parameter is valid, if a heat sink is used.



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