TLE5208-6G

Manufacturer Part NumberTLE5208-6G
DescriptionTLE5208-6G
ManufacturerInfineon Technologies AG
TLE5208-6G datasheet
 
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Figure 5
Temperature Distribution with Full Loading of all Switches with
T
= 85 C (358K) and
Lead
The greatest temperature difference in this case is approx. 75 C. The static thermal
R
resistance
- is therefore only approx. 13 K/W.
thj-Lead
Therefore: With a maximum permitted chip temperature of
TLE 5208-6 G works up to an environmental temperature of 85 C. These values can be
counted on for short periods, i.e. for applications with switching times of a few 100 ms,
since the startup time constants of motors and the power-on time constants (inrush) of
lights are normally less than 100 ms.
Since the thermal capacity of the PCB is not infinite, thermal resistance
PCB layout must be added to thermal resistance
environment for continuous operation. In the case of assembly on a 1.5 mm thick FR4
PCB without cooling surfaces in addition to Pins 6 to 9 and 20 to 23, it can be assumed
R
that
= 30 K/W. This value can be reduced to approx. 20 K/W with cooling areas
thPCB-A
on the PCB.
Figure 6 shows another, particularly interesting scenario. In this case, the chip is placed
under maximum asymmetric thermal load. All of the switches on one side of the chip
generate 0.5 W dissipated power. Half-symmetry must therefore be used to illustrate
this.
Semiconductor Group
P
P
= 6 by 0.5 W,
= 6 by 0.5 W
HS
LS
R
in order to ascertain the
thj-Lead
7
TLE 5208-6 G
T
= 150 C, the
j
R
for the
thPCB-A
1998-02-01