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Tool/software:
This IC is used as the POR for TSC2007. The circuit is as shown below.
If no resistor is inserted between pin-D and the load, an inrush current of 3.3V / Ron will flow each time the SW is switched.
Since Ron(min) = 4.5Ω, a peak current of 3.3/4.5 = 0.74A will flow.
Will this value damage the IC?
The TSC2007's Vdd fall speed is 2kV/s~. The rise speed is 12kV/s~, so I do not want to insert a resistor.
The absolute maximum ratings specify the limit as 50 mA. You should stay below that.
To switch a load, use a load switch like the TPS22919 or TPS22995.
Hello Dai,
0.74A is exceeding the 50mA ratings of the device. I recommend tying a resistor on the I/O to avoid damaging the device, or use a load switch as Clemens mentioned.
Thanks,
Nir