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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INA139 Datasheet

The battery voltage will not exceed 30 volts. Hi everyone, I’m trying to build a solar charger, using a simple boost configuration. Pioneer Elite vsxtx water damage no power Started by Watin Today at Odysseas Member Oct 22, 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.

This would suggest that the problem only appears when pins 3 and 4 on the chip see any voltage above ground. Datasheets, Manuals or Parts. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.


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I’ll triple check the pinout again. I tried ramping up the battery voltage through a PSU no solar inq139 connected and at one volt, the current draw is already about mA.

You must log in or register to reply here. Not even a single miliamp.

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INA Datasheet(PDF) – TI store

What could be going on here? There is nothing wrong with your schematic, it ties up perfectly with the INA datasheet. 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. Thread starter Odysseas Start date Oct 21, Forums New dataxheet Search forums. I checked for short circuits and everything, nothing.

However, the current monitors start drawing way too much current the instant power is applied. Articles Top Articles Search resources.


INA139 current monitor draws too much current

To participate you need to register. INA current monitor draws too much current. For a better experience, please enable JavaScript in your browser before proceeding. Odysseas Member Oct 21, One has now disappeared in smoke. Thanks for any help.

Replacement Transformer Started by ncag Today at 7: Welcome to our site! At one point, D4 wasn’t populated yet and the left hand side INA didn’t draw too much datashret. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Initially, I had only the right hand side Datwsheet populated, then only the one on the left side of the schematic – both show the same behaviour. To sense the current coming from the solar panel and going into the battery, I use two INA current monitor chips.

Media New media New comments Search media. Post a good photo of front and back of your PCB or breadboard.