Mondalot
Junior Member level 3
Hello,
I built a circuit board with Allegro A3941 driver, It works well but I do not know why F1 and F2 Flags are always are ON state.
The description of these flags are two (Page 11 datasheet), but the engine works well and rotating sense also do not have to use the reset.
Motor Works at 30V / 15A
The VBB = 30V or Battery
Battery current = 20A
Bootstrap Capacitors C29-C34 = 1.5uF / 50V
(I MOSFETs in parallel x 2).
Average Voltages : (V=voltage)
---------------------------------------------
V5 and GND = 4,97 V
V R27 And R48 = 3,74V
V R28 and GND = 1,23V
V Read and GND = 1.2V
V SA and GND = 0V (Standby)
V SA and GND = (variable voltage - working)
V CA and GND = 36V (when Work)
V CA and GND = 13V (Standby)
Let's see if you can help me. attached diagram.
Thank you.
I built a circuit board with Allegro A3941 driver, It works well but I do not know why F1 and F2 Flags are always are ON state.
The description of these flags are two (Page 11 datasheet), but the engine works well and rotating sense also do not have to use the reset.
Motor Works at 30V / 15A
The VBB = 30V or Battery
Battery current = 20A
Bootstrap Capacitors C29-C34 = 1.5uF / 50V
(I MOSFETs in parallel x 2).
Average Voltages : (V=voltage)
---------------------------------------------
V5 and GND = 4,97 V
V R27 And R48 = 3,74V
V R28 and GND = 1,23V
V Read and GND = 1.2V
V SA and GND = 0V (Standby)
V SA and GND = (variable voltage - working)
V CA and GND = 36V (when Work)
V CA and GND = 13V (Standby)
Let's see if you can help me. attached diagram.
Thank you.