When a LOCK_ILIMIT event happens in this mode, the
status of MOSFETs will be configured by LOCK_ILIMIT_MODE and nFAULT is driven low.
Status of MOSFETs during LOCK_ILIMIT:
- LOCK_ILIMIT_MODE = 0100b: All
MOSFETs are turned OFF.
- LOCK_ILIMIT_MODE = 0101b: MOSFET which was switching is
turned OFF while the one which was conducting stays ON till inductive energy
is completely recirculated.
- LOCK_ILIMIT_MODE = 0110b: All
high-side MOSFETs are turned ON
- LOCK_ILIMIT_MODE = 0111b: All
low-side MOSFETs are turned ON
The CONTROLLER_FAULT and LOCK_ILIMIT bits are set to 1b in the fault status
registers. Normal operation resumes automatically (gate driver operation and the
nFAULT pin is released) after the t
LCK_RETRY (configured by LCK_RETRY)
time lapses. The CONTROLLER_FAULT and LOCK_ILIMIT bits are reset to 0b after the
t
LCK_RETRY period expires.