bts50080a Infineon Technologies Corporation, bts50080a Datasheet - Page 13
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bts50080a
Manufacturer Part Number
bts50080a
Description
Smart High-side Power Switch
Manufacturer
Infineon Technologies Corporation
Datasheet
1.BTS50080A.pdf
(33 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
BTS50080A
Manufacturer:
INFINEON
Quantity:
36
Part Number:
BTS50080A
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
Figure 9
To prevent destruction of the device, there is a voltage clamp mechanism implemented that keeps the voltage drop
across the device at a certain level. At nominal battery voltage the output is clamped to V
the output is clamped to V
is limited.
Figure 10
Maximum Load Inductance
While de-energizing inductive loads, energy has to be dissipated in the BTS50080-1EGA. This energy can be
calculated by the following equation:
In the event of de-energizing very low ohmic inductances ( R
The energy, which is converted into heat, is limited by the thermal design of the component. See
maximum allowed energy dissipation.
Datasheet
V
OUT(CL)
V
OUT
V
bb
I
L
Output Clamp
Switching an Inductance
E
DS(CL)
=
(
ON
V
. See
bb
+
V
bb
V
Figure 9
OUT CL
control chip
GND
(
E
)
)
=
and
⋅
1
-- -
2
–
------------------------------ - ln
LI
V
Figure 10
L
OUT CL
2
R
VBB
base
⋅
L
13
------------------------------------ -
V
(
OFF
V
DS(CL)
DS(CL)
V
)
L
DS(CL)
⋅
chip
≈
OUT
for details. The maximum allowed load inductance
0) the following, simplified equation can be used:
–
1
V
+
bb
-------------------------
V
R
OUT(CL)
V
V
L
t
t
DS(CL)
OUT
⋅
I
Smart High-Side Power Switch
L
i
L
+
I
L
V
V
⋅
OUT
bb
------ -
R
L
L
OUT(CL)
BTS50080-1EGA
. At over voltages
V1.0, 2009-04-06
Figure 11
V
V
DS(CL)
Power Stages
OUT(CL)
InductiveLoad.emf
OutputClamp.emf
V
bb
for the