TLE7185-1E Datasheet, PDF (16/23 Pages) Infineon Technologies AG – 3-Phase Bridge Driver IC

TLE7185-1E
____
ERR
GND
5V _TLE7185E
internal
ERR - Logic
Figure 4
Table 2
ERR1
High
High
Low
Low
Low
Low
Low
Structure of ERR output
Overview of error conditions
ERR2
High
Low
High
High
Low
Low
Low
Driver conditions
Driver action
Restart
no errors
Fully functional
–
Over temperature
Warning only
Self clearing
Over voltage VS/VDH or Warning only
under voltage CB
Self clearing
Under voltage lockout
based on Vs
Deactivation of driver Self clearing
output and charge
pump
STOE pin High
Warning only
Self clearing
SCDL open pin
Warning only; SCD
deactivated;
Self clearing
Short circuit detection
All MOSFETs actively Reset at ENA needed
switched off
Reset of ERROR Registers and Disable
The TLE7185-1E can be reseted by the enable pin ENA. If the ENA pin is pulled to low for a specified minimum
time, the error registers are cleared. During reset (ENA = low) the driver outputs are disabled and the external
MOSFETs are switched off actively. Furthermore, the Short Circuit Detection SCD is deactivated as long as ENA
= low.
During disable (ENA = low) any error is shown. However, the Short circuit detection error is reset (error is cleared)
and can not reoccur as the output stages which drive the external MOSFETs are disabled.
In case of under voltage lockout, the ERR pins deviate from the table above as the charge pump is not active and
the TLE7185E is not biased properly.
Data Sheet
16
Rev. 2.4, 2010-07-16