Hello Lin,
I haven’t heard back from you, I’m assuming you were able to resolve your issue.
If not, just post a reply below (or create a new thread if the thread has locked due to time-out)
Best Regards,
Part Number: TPS92641EVM Hi,
My customer is evaluating this EVM and has the following question (waveforms are attached):
We used a 30khz pwm signal for dimming and labeled what the duty cycle was set at for each waveform. I'm sending the waveforms…
Part Number: TPS92641EVM I found the long slit at LED+ output of TPS92641EVM.
I want to know what the slit is for?
(page 10, User's Guide for the TPS92641EVM, slvu823.pdf)
Other Parts Discussed in Thread: TPS92641EVM , TPS92641 Hi e2e,
We have a customer that is usig the TPS92641EVM. They want to extend the input operating voltage of this EVM from 43V - 53V to 43V - 85V and want to know which components to change and…
Part Number: TPS92641 Dear Team,
My customer is evaluating the TPS92641 application by modifying the TPS92641EVM. They increase V_IADJ from 0V to 2V (for V_CS=0.2V, ILED=5A). When ILED exceeds around 1A, on time becomes random or oscillalting. After…
Hi ShuHei
I measured on TPS92641EVM, with SDIM, there is same current peak, this should be normal and caused by the current regulation mechanism I mentioned. Should be no harmful for the circuit.
Thanks and best regards.
Part Number: TPS92641 Other Parts Discussed in Thread: LM3409HV , , , LM3409 Tool/software: Dear respected TI experts,
I have implemented a LED driver with shunt dimming feature by using LM3409HV. It works well with high dimming performance.
Now…
Part Number: TPS92641 Other Parts Discussed in Thread: , TPS92640 Hi,
I am trying operate LEDS through TPS92641EVM with below spec
Vin= 52V
Iin = 7A
VLed = 49V
ILed = 6A
Ripple Current: 200mA
How to calculate the UDim frequency range for…
Part Number: TPS92640 Other Parts Discussed in Thread: TPS92641EVM , Hi
I made an LED circuit with a power supply of 48V using the above model number, but the VREF pin 5 is still 0V , and it does not normally output 3V and does not work properly.
…
Hi Steven,
thanks for your answer. Unfortunately, the TPS92641EVM seems to limit testing opportunities. The input voltage has to be above 43V and LED current is limited to 1A. Is it possible to run two TPS92641EVM synchronously to achieve 2A?
Using…
