BTS3256DXT Infineon Technologies, BTS3256DXT Datasheet - Page 15

• Manufacturer Part Number: BTS3256DXT
• Manufacturer: Infineon Technologies

Specifications of BTS3256DXT

• Switch Type: Low Side
• Input Voltage: -0.3 to 5.5V
• Power Switch On Resistance: 10mOhm
• Number Of Outputs: Single
• Mounting: Surface Mount
• Supply Current: 3(Max)mA
• Package Type: TO-252
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 4 +Tab
• Lead Free Status / RoHS Status: Compliant

Figure 12
While demagnetization of inductive loads, energy has to be dissipated in the BTS 3256D. This energy can be
calculated with following equation:
Following equation simplifies under assumption of R
Figure 13
For maximum single avalanche energy please also refer to E
Datasheet
E
E
=
=
V
1
-- -
2
LI
D(AZ)
L
2
shows the inductance / current combination the BTS 3256D can handle.



Switching off an inductive Load
1
V
------------------------------- - ln 1
–
bb
------------------------------- -
V
–
R
bb
V
L
High
Low
V
V
Von
–
D(AZ)
V
D A Z
bb
bb
V
IN
I
D
D(AZ)






–
---------------------------------
V
bb
R
–
L
V
D AZ
I
L



+
I
L
------
R
L
L
L
= 0
Overtemperature or
short circuit detected
15
AS
value in
“Energies” on Page
Smart Low Side Power Switch
t
t
t
inductive_output_clamp .emf
HITFET - BTS 3256D
Rev. 1.0, 2009-05-05
7.
Power Stage