Part Number: TPS650250EVM-447 Other Parts Discussed in Thread: AM3358 , TPS650250 , TPS65217 Hi Champs
There's an issue that customer faces.
Although their AM3358 board with TPS65217x worked fine. Boot Failure is reproducible when replaced with TPS650250…
Hi Ryu,
In the TPS650250 spec we only specify the minimum capacitance required for the stability of the LDO. This device has an evaluation module ( TPS650250EVM-447 ) that can be used to evaluate the PMIC performance under different conditions. Output…
Uchikoshi-san,
Are you testing on the TPS650250 EVM (TPS650250EVM-447) or are you testing the IC on a PCB built by the customer?
If you are testing on the customer's PCB, please share the schematic of the design showing the PMIC device and external components…
Hi Sasaki-san,
Customer may experiment with different output capacitor values, however the electrical specifications would no longer apply so they would have to validate the solution themselves to confirm the performance meets their requirements. As…
Sasaki-san,
You can use the TPS650250EVM-447 to measure this performance. The EVM already has pads for external resistors to set DCDC1 and DCDC2 output manually. DCDC3, LDO1 and LDO2 are already set externally such that VDCDC3=1.2V, VLDO1=2.5V (R18 &…
Hi Brian Berner,
In my pcb, I disconnect all the load from the TPS650250. And connect only the 3.3Ohm resist to the 1.3V output. The PWM is not stabe as shown in the Figure, and I can hear the noise.
I have bought a TPS650250EVM-447 board, I make…
Allan,
The only thermal data TI can provide is in Section 6.4 Thermal Information of the datasheet, which also provides a link to this reference documentation. ( )
Which is standardized according to the documentation to try to convey a similar message for…
Hi Eli,
Sorry, I do no have this information but, the EVM is available and can be used to take the measurement. Just change the DEFDCDC voltage divider resistors for 1.1V output. Below is the link where you can order the EVM.
http://www.ti.com/tool/tps650250evm…
Hi Masaya,
This can be taken easy using the EVM. You can order an EVM here:
http://www.ti.com/tool/tps650250evm-447
Please read this app note before you start testing. It discusses proper techniques for measuring efficiency.
http://www.ti.com/lit/an/slva236…
