BTS5672E Datasheet, PDF (17/46 Pages) Infineon Technologies AG – SPI Power Controller

SPOC - BTS5672E
Power Stages
The power DMOS switches with a dedicated slope, which is optimized in terms of EMC emission.
IN /
OUTx
V_OUT
90%
70%
t_ON
t_delay(ON)
30%
10%
dV /
dt_ON
t_OFF
t
t_delay(OFF)
70%
dV /
dt_OFF
30%
t
SwitchOn.emf
Figure 7 Switching a Load (resistive)
When switching off inductive loads with high-side switches, the voltage V_OUT drops below ground potential,
because the inductance intends to continue driving the current. To prevent avalanche of the device, there is a
voltage clamp mechanism implemented which limits that negative output voltage to a certain level (V_DS(CL)). See
Figure 6 for details. The maximum allowed load inductance is limited.
Data Sheet
17
Rev. 1.0, 2008-01-22