BTS6142D_07 INFINEON [Infineon Technologies AG], BTS6142D_07 Datasheet - Page 13
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BTS6142D_07
Manufacturer Part Number
BTS6142D_07
Description
Smart High-Side Power Switch
Manufacturer
INFINEON [Infineon Technologies AG]
Datasheet
1.BTS6142D_07.pdf
(30 pages)
Figure 9
Maximum Load Inductance
While de energizing inductive loads, energy has to be dissipated in the BTS 6142D. This
energy can be calculated via the following equation:
In the event of de-energizing very low ohmic inductances (
equation can be used:
The energy, which is converted into heat, is limited by the thermal design of the
component. For given starting currents the maximum allowed inductance is therefore
limited. See
Data Sheet
E
Figure 10
=
V
Switching an Inductance
OUT(CL)
V
V
OUT
V
ON CL
bb
I
L
(
)
for the maximum allowed inductance at V
⋅
V
---------------------------------------- ln
E
bb
=
–
R
1
-- -
2
V
LI
L
ON CL
ON
V
L
ON(CL)
(
2
⋅
)
-------------------------------------- -
V
13
⋅
ON(CL)
V
ON(CL)
1
+
–
-------------------------------------- -
Smart High-Side Power Switch
V
V
ON(CL)
bb
R
OFF
L
R
⋅
L
I
–
L
≈
V
0) the following, simplified
bb
bb
t
t
=12V.
+
I
L
V1.1, 2007-02-28
Power Stages
⋅
BTS 6142D
------
R
L
L
InductiveLoad.emf