参数资料
型号: TLE5012-E0742
厂商: INFINEON TECHNOLOGIES AG
元件分类: 模拟信号调理
英文描述: POSITION SENSOR, PDSO8
封装: GREEN, PLASTIC, DSO-8
文件页数: 10/56页
文件大小: 2614K
代理商: TLE5012-E0742
TLE5012
Specification
Target Data Sheet
18
V 0.41, 2009-02
Calculation of the Junction Temperature
The total power dissipation PTOT of the chip increases its temperature above the ambient temperature.
The power multiplied by the total thermal resistance
RthJA (Junction to Ambient) leads to the final junction temperature. RthJA
is the sum of the addition of the values of the two components
Junction to Case and Case to Ambient.
(1)
Example (assuming no load on Vout):
(2)
For moulded sensors, the calculation with RthJC is more adequate.
OUT
DD
thJA
TOT
thJA
A
J
thCA
thJC
thJA
I
V
I
V
R
P
R
T
R
×
+
×
=
×
=
+
=
+
=
(
(IDD, IOUT > 0, if direction is into IC)
[]
[] [ ] K
VA
A
V
W
K
T
mA
I
V
DD
9
0
012
.
0
5
150
12
5
=
+
×
=
=
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