BTS 50055-1TMC Infineon Technologies, BTS 50055-1TMC Datasheet - Page 9

• Manufacturer Part Number: BTS 50055-1TMC
• Manufacturer: Infineon Technologies

Specifications of BTS 50055-1TMC

• Packages: PG-TO220-7
• Channels: 1.0
• Ron @ Tj = 25°c: 6.0 mOhm
• Recommended Operating Voltage Min.: 5.5 V
• Recommended Operating Voltage Max.: 34.0 V
• Il(sc): 45.0 A

Inverse load current operation
The device is specified for inverse load current
operation (V
is not available during this kind of operation (I
With I
source diode is conducting resulting in considerably
increased power dissipation. If the device is switched
on (V
much lower value R
4).
Note: Temperature protection during inverse load
current operation is not possible!
Inductive load switch-off energy
dissipation
Energy stored in load inductance:
While demagnetizing load inductance, the energy
dissipated in PROFET is
with an approximate solution for R L > 0 Ω:
Infineon Technologies AG
+
-
E
V bb
AS
IN
IN
= 0), this power dissipation is decreased to the
=
= 0 (e.g. input open) only the intrinsic drain
E
I
E
V
IN
V
bb
2
I
AS
bb
L
IN
·
R
·
OUT
= E
L
L
(
V
bb
> V
bb
IN
+ E
ON(INV)
+ |V
bb
E
IN
V
L
L
> 0V). The current sense feature
IS
PROFET
OUT(CL)
- E
=
IS
V
1 /
R
PROFET
* I
bb
2
=
·
R IS
V
IS
2
∫
bb
L
(specifications see page
|)
·
V
I
R
IS
ON(CL)
I
OUT
ln
2
L
IS
(1+
E AS
OUT
Z L
·
{
|V
i
L
i (t)
L
(t) dt,
OUT(CL)
R L
I
L
L
·
V
- I
IS
R
OUT
L
Page 9 of 17
L
= 0).
E
E
|
E Load
R
)
L
+
-
Maximum allowable load inductance for
a single switch off
L = f (I L ); T j,start = 150°C, V bb = 12 V, R L = 0 Ω
L [µH]
Externally adjustable current limit
If the device is conducting, the sense current can be
used to reduce the short circuit current and allow
higher lead inductance (see diagram above). The
device will be turned off, if the threshold voltage of T2
is reached by I
R
the short circuit current is defined by I
V
*C
IN
Signal
V
10000
1000
T1 will be reset. The device is turned on again,
100
10
1
10
Signal
GND
R
V
Data Sheet BTS50055-1TMC
S
T1
*R
V bb
IS
. After a delay time defined by
IN
C
V
100
PROFET
T2
V bb
L(SC).
OUT
IS
2010-April-27
R
IS
1000
R
Power
GND
load
I
L
[A]