TLE7184F_15 Datasheet, PDF (31/38 Pages) Infineon Technologies AG – System IC for B6 motor drives

TLE7184F
Description of Modes, Protection and Diagnostic Functions
Reset of error registers and Disable
The TLE7184F can be reset by the enable pin RGS. If the RGS pin is pulled to low for a specified minimum time,
the error registers are cleared. If the error is still existing when the RGS pin is pulled to low, no reset will be
performed and the ERR pin stays low. The only exemption of this behavior is the Over Temperature Prewarning.
Even if the junction temperature is exceeding the over temperature prewarning level, the error signal goes to high
when RGS is pulled low.
Figure 13 describes the timing behavior during error reset:
For more details see description of Error Mode and Normal Mode with Over Temperature Pre-Warning in
Chapter 9.1.
Internal
5V
uC
ERR
Interface_uC
GND ^GND
internal
Error
Logic
Figure 12 Structure of ERR output
TLE 7184 F
releases signal
Error occurs
5V
ERR
0V
No driver
reset
Error reset
undefined
5V
RGS
0V
Short glitches are
ignored
t_nres-min t_res-min
Normal operation
Figure 13 Enable / Disable timing
Sleep mode
t_sleep
Data Sheet
31
Rev. 1.1, 2011-04-08