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Brian Berner
over 2 years ago
Power management
Power management forum
RE: TPS65218: About the Ripple of DCDC4 for D0 and B1
Yimin, The TIDA-00606 reference design test report is a good resource for test data on DCDC4. Attached for your convenience are the two scope shots relevant to this discussion: DCDC4 static ripple measurement DCDC4 dynamic load response...
Brian Berner
over 2 years ago
Power management
Power management forum
RE: TPS65218: TPS65218
Madhusoodana Bairy, The current limit setting is a maximum value. These numbers only apply to when the load switch would shut itself off due to over-current. If you set LS3ILIM[1:0] = 00b this means the the maximum current that will flow through the...
Brian Berner
over 2 years ago
Power management
Power management forum
RE: TPS65218D0: TPS65218D0 EVM
Iwasaki-san, Where do you see an EVM named "TPS65218D0 EVM"? There is only 1 EVM,
TPS65218EVM-100
, and the BOM simply shows it is using "TPS65218". I am working on updating all collateral to use TPS65218D0, both in documentation...
Brian Berner
over 2 years ago
Power management
Power management forum
RE: TPS65218: About DCDC5/DCDC6 is turned off issue
The problem seems to be the C139 220uF electrolytic capacitor at the input of your design (connected to IN_BIAS and all other IN_xxxx pins on the TPS65218D0 PMIC.) This capacitor is marked DNI on the
TPS65218EVM-100
, and should be marked as DNI on...
Brian Berner
over 2 years ago
Power management
Power management forum
RE: TPS65218: DCDC1-3 switching freqency on TPS65218
Iwasaki-san, I repeated your tests and the first thing I would like to point out is that this is not the correct use of the term "unstable". The DC-DC converter is not unstable and this cannot be determined from measuring the switching node...
Anton Gremiatskyi
over 4 years ago
Power management
Power management forum
Changning voltage DCDC1 and DCDC2 TPS65218
Hi, I bought board
TPS65218EVM-100
for testing. I am planning use this chip in new project. And I have some problems: – I could not change voltage on DCDC1 and DCDC2. I can change voltage on DCDC3, DCDC4 and LDO1, but I cannot change DCDC1 and...
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