Part Number: TPS92641 I am currently working on a 240W LED driver application with TPS92641 .
The application scenario is as follows:
- Input voltage: 50V Nom (48-50V)
- Output voltage: 39-46V (LED string)
- Output current: 2.5A - 5A
- PWM : 8kHz
- Dimming…
Part Number: TPS92641 Hi team,
Referring to data sheet Figure 12, it seems that a ripple of about 300mA occurs when 1A flows.
Could you please confirm how much ripple there is at 400mA, pulse width 10µs, duty 1%?
Regards,
Taito Takemura
Part Number: TPS92641 Dear Specialists,
My customer is evaluating TPS92641 and encountering the problem.
The circuit repeatedly switches and stops, resulting in intermittent operation.
Could you please advise.
In this case, the customer would like to…
Hi Oben,
Here is an example where TPS92641 is used to output max 20A current - DLP® Pico Brightness Turbo and TPS92641 Design Guide (ti.com) .
Best Regards,
Steven
Part Number: TPS92641 Hi Steven,
thank you for your feedback, I created a new thread.
Challenge: We want to generate very short LED pulses (1 µs or better 0.5µs) with high current (minimum 2A, better 3A) that can be controlled (dimmed).
The…
Part Number: TPS92641 Hi team, I use the UDIM pin to control the current. It takes about 50us from the time I input the signal to the UDIM until the ILED is output. Why does this take time? Is there a way to get a faster output? BR, Kengo.
Part Number: TPS92641 Dear Sir,
Just like the question, it seem no these parameters in the datasheet of TPS92641, the real Vgs for NMOS in HG and LG pin.
Best regards.
David