Asiya,
I see 5V (4.86V mean) on one of the scope shots. Is that the VOUT? I see two other scope shots with 0V which I suspect you are pointing to. Any chance of confirming the EN voltage and SW voltage? Does the design work if you replace the TPS54294…
Part Number: TPS54294 Our customer would like to use only Ch1 of TPS54294.
Please let us know how to following Pins treatment when they don't use Ch2.
VIN2
VBST2
SW2
PGND2
EN2
PG2
VFB2
Regards,
Part Number: TPS54294 Hello TI,
I am using several TPS54294's in a design, and one of them will only utilize one channel output.
I am pulling the enable low on the unused channel, but what should I do with the SW/VFB/etc,,, pins. Can these be NC or…
Hello Soengjin,
Do you have power-on sequence requirement? If not, you may use one multi-channel part to output 5V and 3.3V, and use one part to output -5V.
And as you said, you need an AC adapter to convert 220VAC into low DC voltage. Assuming the DC…
Part Number: TPS54294 Dear all.
1. Vin=10.8V, Vout1=5.5V/100mA, Vout2=3.7V/1.5A 2. Vin=10.8V, Vout1=5.2V/100mA, Vout2=3.7V/1.5A
The output appears with case 2, but both output stops with case 1. This circuit modified EVM. 3.7V : L=3.3uF 5.5V : L=4.7uF Is…
Other Parts Discussed in Thread: TPS54294 , TPS54494 We used the TPS54294 part in the RTM proto board and power supply design is proved.
As per the new current requirements planned to use the TPS54294 in the proto-2 design.
We observed the following difference…