BTS 50080-1TMB Infineon Technologies, BTS 50080-1TMB Datasheet - Page 21

• Manufacturer Part Number: BTS 50080-1TMB
• Manufacturer: Infineon Technologies

Specifications of BTS 50080-1TMB

• Packages: PG-TO220-7
• Channels: 1.0
• Ron @ Tj = 25°c: 8.0 mOhm
• Recommended Operating Voltage Min.: 5.5 V
• Recommended Operating Voltage Max.: 38.0 V
• Il(sc): 90.0 A

7
For diagnosis purpose, the BTS50080-1TMB provides an IntelliSense signal at the pin IS.
The pin IS provides during normal operation a sense current, which is proportional to the load current as long as
V
the forward voltage drops below
The pin IS provides in case of any fault conditions a defined fault current
conditions are over-current (
The pin IS provides no current during open load in ON and de-energisation of inductive loads.
Figure 17
Table 1
1) H = “High” Level, L = “Low” Level, Z = high impedance, potential depends on external circuit
2) Low ohmic short to
The accuracy of the provided current sense ratio (
Figure 18
Datasheet
Parameter
Normal operation
Overload
Short circuit to GND
Overtemperature
Short circuit to
Open load
bIS
> 5 V. The ratio of the output current is defined as
for details. A typical resistor
Diagnosis
Block Diagram: Diagnosis
Truth Table
V
bb
V
bb
may reduce the output current
V
Input Current Level
L
H
L
H
L
H
L
H
L
H
L
H
ON
1)
1)
V
> 1 V typ.), current limit or over-temperature switch off.
ON
< 1 V typ. The output sense current is limited to
R
IS
of 1 kΩ is recommended.
V
bb
I
IS
R
bb
k
I
L
ILIS
and therefore also the sense current
21
k
ILIS
I
=
Output Level
L
H
L
H
L
L
L
L
H
H
Z
H
IS(fault)
1)
I
L
=
/
I
I
L
IS
/
IS
I
) depends on the load current. Please refer to
IS
V
V
. During switch-on no current is provided, until
V
Z,IS
b,IS
IS
Smart High-Side Power Switch
R
IS
I
IS(fault)
as long as
Current Sense I
≈ 0 (
nominal
≈ 0 (
I
≈ 0 (
I
≈ 0 (
I
≈ 0 (
< nominal
≈ 0 (
≈ 0 (
I
IS(fault)
IS(fault)
IS(fault)
IS(lim)
I
IS
I
I
I
I
I
I
I
.
IS(LL)
IS(LL)
IS(LL)
IS(LL)
IS(LL)
IS(LL)
IS(LH)
.
BTS50080-1TMB
Rev. 1.0, 2008-01-23
)
)
)
)
)
)
)
2)
V
bIS
> 8 V
Diagnosis
IS
Sense.emf
.
Fault