Hi,
If PWM_A is toggled 10-90%, is it mandatory toggle PWM_B every cycle end to re-enable outputs or would it work if PWM_B is togled example every 10th cycle?
Our system is running by 500kHz and it means that minimum duty for re-enable PWM_B pulse is 3% (60ns) If we are driving TEC's 90% duty and then 3% for re-enable -> This means that we are actually having 87% duty. Maybe we could decrease frequency from 500kHz to 250kHz, What would be recommended frequency for TEC that ripple is still enough low?
I have understand if 120kohm OC resistor is used then OC limit is 2.4A (in PFB mode 4.8A), is this correct?
What is the current value when CBC starts limit current when 120kohm OC resistor is used
What is the recommended OC resistor value for our 3A TEC's?
-Mikko