SP001104824(2013) View Datasheet(PDF) - Infineon Technologies
Part Name
Description
MFG CO.
SP001104824 Datasheet PDF : 14 Pages
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BTS612N1
Vbb disconnect with energized inductive
load
4
3 IN1
high
Vbb
1
OUT1
6 IN2
ST
5
PROFET
GND
OUT2
7
2
with an approximate solution for RL 0 :
EAS=
2IL·R· LL·(Vbb
+
|VOUT(CL)|)·
ln
(1+
IL·RL
|VOUT(CL)|
)
Maximum allowable load inductance for
a single switch off (both channels parallel)
L = f (IL ); Tj,start = 150°C,TC = 150°C const.,
Vbb = 12 V, RL = 0
L [mH]
1000
Vbb
Normal load current can be handled by the PROFET
itself.
100
Vbb disconnect with charged external
inductive load
4
3 IN1
high
Vbb
1
OUT1
6 IN2 PROFET
10
D
OUT2
ST
5
GND
7
2
Vbb
If other external inductive loads L are connected to the PROFET,
additional elements like D are necessary.
Inductive Load switch-off energy
dissipation
E bb
E AS
IN
Vbb
ELoad
PROFET OUT
=
ST
EL
GND
L
{ZL RL
ER
1
2
3
4
5
6
7
8
IL [A]
Energy stored in load inductance:
EL = 1/2·L·I2L
While demagnetizing load inductance, the energy
dissipated in PROFET is
EAS= Ebb + EL - ER= VON(CL)·iL(t) dt,
Data Sheet
9
2013-10-11
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