BTS4175SGAXT Infineon Technologies, BTS4175SGAXT Datasheet - Page 11

• Manufacturer Part Number: BTS4175SGAXT
• Manufacturer: Infineon Technologies

Specifications of BTS4175SGAXT

• Switch Type: High Side
• Power Switch Family: BTS4175SGA
• Input Voltage: -10 to 16V
• Power Switch On Resistance: 0.175Ohm
• Output Current: 1.3A
• Number Of Outputs: 1
• Mounting: Surface Mount
• Package Type: DSO
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 8
• Power Dissipation: 1.5W
• Lead Free Status / Rohs Status: Compliant

5.3
When switching OFF inductive loads with high side switches, the voltage
because the inductance intends to continue driving the current. To prevent the destruction of the device due to
high voltages, there is a voltage clamp mechanism implemented that keeps the negative output voltage at a certain
level (
inductance is limited.
Figure 6
Figure 7
Maximum Load inductance
During demagnetization of inductive loads, energy has to be dissipated in the BTS4175SGA. This energy can be
calculated with following equation:
Following equation simplifies under the assumption of R
Data Sheet
V
S
-
V
DS(AZ)
Inductive Output Clamp
Output clamp
Switching in inductance timing
V
S-
). Please refers to
V
V
DS(AZ)
V
S
BAT
V
IN
OUT
I
L
E
=
V DS AZ
(
Figure 6
)
V
×
IN
------- -
R L
L
IN
×
and
LOGIC
V S V DS AZ
--------------------------------------- -
GND
Figure 7
–
R L
11
(
L
= 0Ω.
for details. Nevertheless, the maximum allowed load
)
+
ln
V
S
⎛
⎝
--------------------------------------- -
V S V DS AZ
t
peak
OUT
–
R L I L
×
(
L, R
V
OUT
)
Output clamp.vsd
I
⎞
⎠
L
Switching an inductance.vsd
L
+
I L
drops below ground potential,
t
t
t
V
V
DS
OUT
Rev.1.0, 2008-04-29
BTS4175SGA
Power Stage