pendent and can range from V to 40V for the INA and. V to semiconductor products and disclaimers thereto appears at the end of this data sheet. The INA and INA are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and. Texas Instruments INA Explore Texas Instruments on Octopart: the fastest source for datasheets, pricing, specs and availability.

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I checked for short circuits and everything, nothing. As it’s not, I’d very carefully check the pin connections and orientation of the ICs, a track fault or pin swap is the most likely problem.

At one point, D4 wasn’t populated yet and the left hand side INA didn’t draw too much current. Xatasheet has now disappeared in smoke.

Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at There is nothing wrong with your schematic, it ties up perfectly with the INA datasheet. Hi everyone, I’m trying to build a solar charger, using a simple boost configuration.


INA Datasheet(PDF) – TI store

You must log in or register to reply here. What could be going on here? Thanks for any help. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Odysseas Member Oct 21, INA current monitor draws too much current.

INA139 Datasheet

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The battery voltage will not exceed 30 volts. Not even a single miliamp.

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Post a good photo of front and back of your PCB or breadboard. From the data sheet: Pioneer Elite vsxtx water damage no power Started by Watin Today at However, the current monitors start drawing way too much current the instant power is applied. I tried ramping up the battery voltage through a PSU no solar panel connected and at one volt, the current draw is already about mA. So, to determine whether the IC itself is defective, tie both inputs together essentially shorting the current sensing resistor and see whether the IC repeats the anomalous behavior.

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INA139 current monitor draws too much current

Click here to register now. Thread starter Odysseas Start date Oct 21, By continuing to use this site, you are consenting to our use of cookies.

Replacement Transformer Started by ncag Today at 7: To sense the current coming from the solar panel and going into the battery, I use two INA current monitor chips. Odysseas Member Oct 22, I’ll triple check the pinout again.

This would suggest that the problem only appears when pins datazheet and 4 on the chip see any voltage above ground. Forums New posts Search forums. Initially, I had dataxheet the right hand side INA populated, then only the one on the left side of the schematic – both show the same behaviour. Try to keep front and back photos the same size. Welcome to our site! Articles Top Articles Search resources. Datasheets, Manuals or Parts.