What is the max input current allowed for the PT5042A

Phillip Gist

Other Parts Discussed in Thread: PTN78060A

I'm using the PT5042A and PT78NR215H to power my op amps my power supply is 40VDC, which I plan to step down with a voltage divider, but what is the allowable input current so I don't short the circuit?

over 14 years ago

0 Tom Guerin over 14 years ago

TI__Mastermind 38230 points

The PT5042A and PT78NR215H have an average input inrush current each of up to 5.5A .

One possible alternative is the PTN78060A series with a lower inrush current from a maximum input voltage of 15V. The 40V power source is has to be regulated down to +15V with an isolated converter. such as PT4584 or eqivalent converter.The PTN78060A input voltage source can be the PT4584 output voltage (15V)

The link to the PT4584 input voltage range is 18V to 60V is listed below.

http://focus.ti.com/docs/prod/folders/print/pt4584.html

The PTN78060A link is :

http://focus.ti.com/docs/prod/folders/print/ptn78060a.html

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What is the max input current allowed for the PT5042A