BTS 4300SGA Infineon Technologies, BTS 4300SGA Datasheet - Page 11

• Manufacturer Part Number: BTS 4300SGA
• Manufacturer: Infineon Technologies

Specifications of BTS 4300SGA

• Packages: PG-DSO-8
• Channels: 1.0
• Ron @ Tj = 25°c: 300.0 mOhm
• Recommended Operating Voltage Min.: 5.0 V
• Recommended Operating Voltage Max.: 34.0 V
• Il(sc): 4.0 A

5.3
When switching OFF inductive loads with high side switches, the voltage V
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 BTS4300SGA. This energy can be
calculated with following equation:
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
for details. Nevertheless, the maximum allowed load
+
ln
V
S


--------------------------------------- -
V S V DS AZ
t
OUT
peak
–
R L I L
L, R
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, 2008-03-18
BTS4300SGA
Power Stage