Other Parts Discussed in Thread: TPS62135, TPS62180
I am trying to make circuit with the TPS62133 that both charges some cells and powers other components at the same time. The problem that i face is the amount of current that can be drawn from the chips.
Should there be some current limiting resistors in the circuit that prevent currents of magnitude higher than 3A to be drawn or is there some implementation within the TPS62133 that prevents the same. This problem that i face can be summarized in the question: What happens if the load tries to draw a current higher than the rated 3A at 5V, will it provide the maximum rated current, be permanently damaged or turn off entirely?
I will be using more than one chip to provide more current but the maximum current that the cells can draw is much higher than what can provide (worst case) by the TPS62133. The circuit that provide the current to the charging circuitry and the load will be isolated (when both are operational at the same time).
All the graphs and data given in the data sheets terminate at 3A or at 17V (input) and even in the simulations available online I can not reduce the load resistance below 1.6667Ω . So i can not say any thing for sure. I am worried that the chip might fry in the worst case conditions or turn off. Both the situations have to be avoided.
