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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Media New media New comments Search media. One has now disappeared in smoke. The battery voltage will not exceed 30 volts. I tried ramping up the battery voltage through a PSU no solar panel connected and at one volt, the current datzsheet is already about mA. Odysseas Member Oct 22, Forums New posts Search forums.

INA Datasheet(PDF) – TI store

Datasheets, Manuals or Parts. Not even a single miliamp. Initially, I had only the right hand side INA populated, then only the one on the left side of the schematic – both show the same behaviour. As it’s not, I’d very carefully check the pin connections and orientation of the ICs, a track datasheft or pin swap is the most likely problem.


INA current monitor draws too much current. Electro Tech is an online inw139 with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

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What could be going on here? Post a good photo of front and back of your PCB or breadboard.

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

INA139 Datasheet

Pioneer Elite vsxtx water damage no power Started by Watin Today at Click here dataxheet register now. You must log in or register to reply here. Thread starter Odysseas Start date Oct 21, Replacement Transformer Started by ncag Today at 7: Welcome to our site!

Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at To sense the current coming from the solar panel and going into the battery, I use two INA current monitor chips.

Thanks for any help. At one point, D4 wasn’t populated yet and the left hand side INA didn’t draw too much current. For a better experience, please enable JavaScript in your browser before proceeding.


By continuing to use this site, ina1139 are consenting to our use of cookies. There is nothing wrong with your schematic, it ties up perfectly with the INA datasheet.

I’ll triple check the pinout again. To participate you need to register. Hi everyone, Datasgeet trying to build a solar charger, using a simple boost configuration. Odysseas Member Oct 21, This would suggest that the problem only appears when pins 3 and 4 on the chip see any voltage above ground. I checked for short circuits and everything, nothing. Try to keep front and back photos the same size.

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 datasheef behavior. From the data sheet: This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.