Part Number: UC2843A Tool/software: Hello,
I would like to know if the changes described in the PCN 20241015003 are the reason why the electrical parameters of the PCN #20241015002.1 are changing, or if these changes were made to correct previous erro…
Part Number: UC2843A-Q1 Tool/software:
Did TI make a design change between July 2022 and October 2024 that resulted in the changes to maximum lead temperature and package thermal impedance as cited in the October 2024 datasheet?
Was a PCN issued for…
Hi,
If you use a device with Dmax = 100%, while you design external try to work < 50%, it depends on how your external circuit is designed. If there is no 50% duty cycle clamp, during transient > 50% duty cycle can still be there which can cause unstable…
Part Number: UC2843A Tool/software: Hello Team
I am writing to inquire about the recent specification change noted in PCN#20241015002.1, where the minimum value of the PWM maximum duty cycle for the UC2843AN has been adjusted from 94% to 92%.
We understand…
Part Number: UC2843A-Q1 Tool/software: Hi team,
I designed isolated flyback converter with opt coupler feedback. VIn=500V, Vout=8V, Po=16W at Fsw=100kHz.
When I reduce the load current to near 0A, then the switching frequency drops to 10kHz.
Is this…
Part Number: UC2843A Other Parts Discussed in Thread: UCC28C43 Tool/software: I am using the PWM controller UCC28C43_START model from "PSpice for TI" 2024. My simulation is intended to provide a virtual test bench for an actual hardware-implemented buck…
Part Number: UC2843A-Q1 Tool/software: Hi team,
UCC2843A-Q1 doesn't have Vc pin as datasheet page 8.
Is this Vc connected to Vcc internally?
In that case, OUTPUT High Voltage can be as high as Vcc?
I plans connect Vcc>15V, so I wonder if it is clamped…
Part Number: UC2843A-Q1 Other Parts Discussed in Thread: UC2843A , UC2843 , UC3843 , UCC28C43
Tool/software:
Hi,
This is an urgent request. My customer is requesting simulation model for UC2843A-Q1 . Do we have simulation model in SIMPLIS or PSpice? I did…
Part Number: UC2843A Hi,
I have designed a synschronous buck converter with uc2843A . I have derived slope compensation ramp from pwm output through RCD circuit to generate a adjustable ramp duty cycle. ramp is add to CS pin. The issue which I am facing…
