Part Number: UCC2806 We’ve been investigating some failures of units where we are seeing the boost converter MOSFETs fail. During this testing have noticed some abnormal turn on behavior. For reference, here is the implementation in the unit.
What…
Part Number: UCC2806
Hi Everyone,
I want to use 4 UCC2806 with 90degrees phase shifted from each other.
Can you please tell me what will I see in CT pin when I enable external clock operation (connect RT to 5V).
Will I be able to add a voltage…
Part Number: UCC2806 Hi Everyone,
Is the following Possible:
UCC2806 with VIN = 12V and VC=5~7V?
What I'm really asking is the internal gate voltage for internal MOSFETs is VIN or is it 5V (the reference voltage)?
Hi Darren,
UCCx806 is a push-pull PWM controller that is 2x 50% duty cycle limited. I apologize for the confusion here but it seems that some app notes, such as the one you referenced, refer to the duty cycle as “0 to 98%” while the data sheet correctly…
I have discovered the problem. The UCC2806 internal error amp (opamp) has very low drive capability. I'm not sure how the reference circuits function, but with my output voltage regulating at 37V, maybe the instantaneous current requirement is during…
Other Parts Discussed in Thread: UCC2806 i am using ucc2806 in a push pull converter to get sine PWM output .
i am using 10% slope compensation on current sense pin
RT =15k, Ct=470 pf
Issue is i am unable to get below 10% duty cycle
Can someone…
Other Parts Discussed in Thread: UCC2806 I'm using the UCC2806 in current-mode control for an H-bridge high power 300V isolated DC-DC converter. The voltage and current loops seem to be working fairly well. The current loop is limiting the current cycle…
Other Parts Discussed in Thread: UCC2806 What is the minimum sync pulse width required for this device (UCC2806) when it is operated in slave mode with Rt tied to 5V and Ct tied to ground?
