BTS6143D_07 INFINEON [Infineon Technologies AG], BTS6143D_07 Datasheet - Page 11

• Manufacturer Part Number: BTS6143D_07
• Description: Smart Highside Power Switch
• Manufacturer: INFINEON [Infineon Technologies AG]

Short circuit detection
Fault Condition: V
(typ.650 µs).
Overload detection
Fault Condition: V
Short circuit
Short circuit is a combination of primary and
secondary impedance’s and a resistance’s.
Allowable combinations of minimum, secondary
resistance for full protection at given secondary
inductance and supply voltage for single short circuit
event :
Data Sheet
[uH]
15
10
5
5uH
10mOhm
0
V bb
L SC
Logic
0
unit
I
IN
V
bb
:
100
16V
ON
ON
IN
> V
> 1 V typ.
18V
detection
circuit
PROFET
ON(SC)
IS
V
200
24V
bb
(3.5 V typ.) and t> t
SC
OUT
30V
300
O U T
L SC
R SC
+ V bb
[mOhm]
V
Z
R SC
O N
L
d(SC)
11 of 18
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:
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 [m H ]
1000
E
0,01
V bb
100
AS
0,1
10
1
=
E
E
I
IN
bb
AS
1
2
I
L
·
R
·
= E
L
L
(
V
bb
bb
IN
+ E
+ |V
E
PROFET ® BTS 6143 D
L
L
PROFET
- E
OUT(CL)
=
IS
V
1 /
10
R
bb
2
=
·
R IS
∫
L
V
|)
·
ON(CL)
I
OUT
ln
I_L [A ]
2
L
(1+
E AS
Rev. 1.0, 2007-02
Z L
·
i
|V
{
L
i (t)
L
(t) dt,
OUT(CL)
100
R L
I
L
L
·
R
L
E
E
|
E Load
)
R
L