BTS 443P Infineon Technologies, BTS 443P Datasheet - Page 9

• Manufacturer Part Number: BTS 443P
• Manufacturer: Infineon Technologies

Specifications of BTS 443P

• Packages: PG-TO252-5
• Channels: 1.0
• Ron @ Tj = 25°c: 16.0 mOhm
• Recommended Operating Voltage Min.: 5.0 V
• Recommended Operating Voltage Max.: 36.0 V
• Il(sc): 35.0 A

Inductive load switch-off energy
dissipation
Energy stored in load inductance:
While demagnetising load inductance, the energy
dissipated in PROFET is
with an approximate solution for R L > 0 Ω:
The device is not suitable for permanent PWM with
inductive loads if active clamping occurs every cycle.
Data Sheet
E
V bb
AS
=
E
I
E
IN
bb
2
I
AS
L
·
R
·
= E
L
L
(
V
bb
bb
IN
+ E
+ |V
E
L
L
PROFET
OUT(CL)
- E
=
IS
V
1 /
R
bb
2
=
·
R IS
∫
L
|)
·
V
ON(CL)
I
OUT
ln
2
L
(1+
E AS
Z L
·
|V
{
i
L
i (t)
L
(t) dt,
OUT(CL)
R L
I
L
L
·
R
L
Page 9 of 15
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[mH]
0.01
100
10
0.1
1
0
25
PROFET ® BTS 443 P
50
Rev. 1.0, 2007-02
75
I L [A]
100