BTS5234L Datasheet, PDF (20/28 Pages) Infineon Technologies AG – Smart High-Side Power Switch PROFET TWO CHANNELS, 60MOHM

Smart High-Side Power Switch
BTS 5234L
In case of over current as well as over temperature, the current sense signal is switched
off. As a result, one threshold is enough to distinguish between normal and faulty
operation. Open load and over load can be differentiated by switching off the channel
and using open load detection in off-state.
Details about timings between the diagnosis signal I_IS and the output voltage V_OUT and
load current I_L in ON-state can be found in Figure 15.
IN
OFF ON
V_OUT
t_ON
t
t
I_L
I_IS
t_sIS(ON)
t_sIS(LC)
t
Figure 15 Timing of Diagnosis Signal in ON-state
t
SwitchOn .emf
4.3.2 OFF-State Diagnosis
Details about timings between the diagnosis signal I_IS and the output voltage V_OUT and
load current I_L in OFF-state can be found in Figure 16.
IN
ON
OFF
V_OUT
t_OFF
t
Open Load
t
I_L
I_IS
t_d(fault)
t_s(fault)
Figure 16 Timing of Diagnosis Signal in OFF-state
V_IS(fault) / R_S
t
t
SwitchOff.emf
Data Sheet
20
V1.0, 2004-01-23