Part Number: TPS2121EVM-023 We use TPS2121EVM to test the inrush current. We find the peak current will limit at 1.135A, not our OCP setting 4.5A. Below shows the test waveform with test condition. Please have your advice. Thanks
BR, Gary
Part Number: TPS2121EVM-023 We use TPS2121EVM to test the inrush current. We find the peak current will limit at 1.135A, not our OCP setting 4.5A. Below shows the test waveform with test condition. Please have your advice. Thanks
BR, Gary
Part Number: TPS2121 Design Description:
VIN1 5V - 20V, 3A Continuous
VIN2 5V - 20V, 3A Continuous
VIN1 is the primary supply, switch to VIN2 only when VIN1 falls below 4.5V
When operating on VIN2 and VIN1 is reapplied it switches to VIN1
Operate in…
Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 , , LM5116 , TPS61230 Hi TI team,
I choose TPS2121 as a power switch for my Supercap Power Backup solution. Then, I buy one set TPS2121EVM-023 for testing before releasing the schematic…
Part Number: TPS2121EVM-023 Hi Team
Would you advise that When switching the power supply with TPS2121EVM-023, a voltage drop of Vout is seen.
I think that the capacity of the capacitor is sufficient, but is it possible to eliminate this voltage drop…
Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 , TPS2120 , TPS2115A , TPS2114A Use case:
Vin1 vs Vin2 prioritizing Vin1.
Steps to Reproduce:
1. Supply both VIN1 and VOUT with 5V
2. Disconnect supply for VIN1.
Observation:
1.VIN1 will…
Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 Dear TI teams.
Would you like to give me advice about TPS2121.
When switching voltage, It occurs voltage drop like a pictures.
Does not occur when there is no load
Vin1 and Vin2 are 8V…
Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2115A Hello Sir,
Our design is INx USB 5V, INy Li-battery 3.8(typ)
May I know how to enter standby to see standby current 25uA ?
Many thanks !
Hello Patrick,
Thanks for response and feedback on our comments.
Any other comment for schematic which was already added in first conversion.
We used bidirectional TVS diode at input of IC Pins. So, there will be any chances to failure/ damage of Oring…
Hi Henry,
With regard to the power mux TPS2121, typically for high inductive loads or hot plug events we recommend a TVS diode to protect against voltage transients as noted in page 32 of the TPS2121 datasheet and below. However, the inductance and capacitance…
