TLE7184F Datasheet, PDF (25/35 Pages) Infineon Technologies AG – System IC for B6 motor drives

TLE7184F
Description of Modes, Protection and Diagnostic Functions
If the supply voltage at VS reaches the Under Voltage shut down level V_VSLO for a minimum specified filter time
the IC goes into Go-to-Sleep Mode and finally into Sleep Mode.
9.2.5 VDD Under Voltage Diagnosis (VDD_UVD)
The TLE7184F has an integrated VDD Under Voltage Diagnosis, to assure that the behavior of the bridge driver
output stages is predictable in all supply voltage ranges.
If the voltage at VDD reaches the Under Voltage diagnosis level V_UVVDD for a minimum specified filter time an error
is set the IC goes into Error Mode.
VS
V_VDD
V_RT
< T_RR
T_RR
ERR
____
RGS
Figure 10 Timing of VDD Under Voltage Diagnosis
9.2.6 VDD Under Voltage Shut Down (VDD_UVSD)
The TLE7184F has an integrated VDD Under Voltage Shut Down, to avoid operation with VDD shorted to GND.
If the supply voltage at VDD reaches the Under Voltage shut down level V_VDDsleep, and the wake-up time is expired,
VREG and VDD will be switched off and the IC will go to the Deadlock Mode.
9.2.7 VREG Under Voltage Diagnosis (VREG_UVD)
The TLE7184F has an integrated VREG Under Voltage Diagnosis, to assure that the behavior of the bridge driver
output stages is predictable in all supply voltage ranges.
If the voltage at VREG reaches the Under Voltage diagnosis level V_UVVR for a minimum specified filter time an error
is set the IC goes into Error Mode.
Data Sheet
25
Rev. 1.0, 2008-12-04