Part Number: LM5122-Q1 Other Parts Discussed in Thread: TPS92515HV-Q1 , Hi, team,
When the input voltage of the LM5122-Q1 is less than 7V, the output voltage will drop, causing the LED string driven by the TPS92515HV-Q1 in the latter stage to flicker…
Part Number: TPS92515HV I'm trying to reduce my footprint by using a smaller schottky for the freewheeling diode. What's the recommended max Vf (recommended max SW to GND). Will this increased Vf affect bootstrap function?
Part Number: TPS92515HV hi,
do we have characterization data of the current through IADJ pin?
don't need necessarily min/typ/max vs temp, but a reliable indication of the ballpark (1uA, 10uA, 1nA, or...?)
thanks a lot in advance
KR
Vincenzo
Part Number: TPS92515HV Other Parts Discussed in Thread: TPS92515 Hello,
please what is the PWB plane (heatsink) area and shape for Rth,j-a=56.2 K/W, shown in the datasheet?
Thank you
Karel
Part Number: TPS92515HV I did reference using TPS92515HVEVM-749 schematic.
It worked dim with fix IADJ and PWM 16KHz.
Because of flicker, I had to change the fsw frequency(580KHz -> 700KHz).
and It was working mistic.
When I was PWM Dim up, LED…
Part Number: TPS92515HV Other Parts Discussed in Thread: TPS92515 Hi Team
TPS92515 is using Constant Off time tech.
if I set ILED = 1A and ILpp = 200mA and VIDJ = 2.4V, Rsense would be 0.218 Ohm.
under such H/W condition,
for "Down Direction…
Hello,
If UVLO needs to be that low with 48.5V input I would add a zener to clamp the voltage below absmax. I would also go by the datasheet calculations when designing the LED driver.
Best Regards,
Part Number: TPS92515HV Hello,
Made TPS92515HV circuit as attached Webench design to get 1.64A output, but measured output current is 1.84A not 1.64A.
Could you let me know why output current is different from Webench design?
And how can make…
