Hi,
I have been working on ACT43750, After i power up getting a bias error. Without enabling anything, I have read the status register getting the register values as below
0x00 = 0x0D
0x01 = 0x00
0x02 = 0x00
0x03 = 0x00
And my output of the pins as follows
across BT50 and VD = 4.68
LSR = 4.9V
v12 = 11.87V
V50 = 28V
VG = 0.017V
GV5= 5V
comp pin = 1.059V
GSW = 0.001
GREF = 0.019V
PG = 0.003V
V5 = 4.995 V
NTC = 2.498 V
HSGU - <500mv
HSGD - <500mv
LSGU - 4.5V
LSGD - 4.5V
And my schematics
I made the following modifications: removed R363 and R377, and shorted R345 and R346 to tie ENG and ENCAL to GND. The ENTX pin is connected to an MCU GPIO (through SHDN_MAIN pin), which I am holding LOW. I also tried enabling the REGG block via software by setting the EN_REGG bit in register 0x08.Despite these changes, the Bias Error persists and VG remains stuck at 0.017 V.
Now, kindly help me to get VG = - 2.1V.
Regards,
Santhosh.