PPC8544EVTANG Freescale Semiconductor, PPC8544EVTANG Datasheet - Page 104
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
PPC8544EVTANG
Manufacturer Part Number
PPC8544EVTANG
Description
EVAL MPC8544 783FCPBGA
Manufacturer
Freescale Semiconductor
Type
Microcontrollerr
Datasheet
1.MPC8544VTALF.pdf
(117 pages)
Specifications of PPC8544EVTANG
Contents
Board
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PPC8544EVTANG
Manufacturer:
FREESCALE
Quantity:
20 000
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Thermal
20.3.4
The MPC8544E has a temperature diode on the microprocessor that can be used in conjunction with other
system temperature monitoring devices (such as Analog Devices, ADT7461™). These devices use the
negative temperature coefficient of a diode operated at a constant current to determine the temperature of
the microprocessor and its environment. It is recommended that each device be individually calibrated.
The following are voltage forward biased range of the on-board temperature diode:
An approximate value of the ideality may be obtained by calibrating the device near the expected operating
temperature. The ideality factor is defined as the deviation from the ideal diode equation:
Another useful equation is:
104
V
V
f
f
> 0.40 V
< 0.90 V
Temperature Diode
V
I
fw
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
H
= I
– V
s
L
8
7
6
5
4
3
2
1
e
= n
nKT – 1
0
qV
KT
f
q
ln
0.5
Figure 64. Approach Air Velocity (m/s)
I
I
H
L
1
1.5
Thermalloy #2328B Pin-fin Heat Sink
2
(25 × 28 × 15 mm)
2.5
3
Freescale Semiconductor
3.5
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