AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 425
AT91SAM7S32-AI
Manufacturer Part Number
AT91SAM7S32-AI
Description
AT91 ARM Thumb-based Microcontrollers
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT91SAM7S32-AI.pdf
(446 pages)
- Current page: 425 of 446
- Download datasheet (3Mb)
Junction
Temperature
6071A–ATARM–28-Oct-04
The average chip-junction temperature, T
7.
8.
where:
•
•
•
•
•
From the first equation, the user can derive the estimated lifetime of the chip and decide if a
cooling device is necessary or not. If a cooling device is to be fitted on the chip, the second
equation should be used to compute the resulting average chip-junction temperature T
page 424.
Table 103 on page 424.
P
Consumption” on page 408.
T
T
T
JA
JC
HEAT SINK
A
J
D
J
= ambient temperature (°C).
= device power consumption (W) estimated from data provided in the section “Power
=
=
= package thermal resistance, Junction-to-ambient (°C/W), provided in Table 103 on
= package thermal resistance, Junction-to-case thermal resistance (°C/W), provided in
T
T
A
A
+
+
= cooling device thermal resistance (°C/W), provided in the device datasheet.
P
P
D
D
HEATSINK
JA
+
JC
J
AT91SAM7S32 Preliminary
, in °C can be obtained from the following:
J
in °C.
425
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