INA3221 is a Texas Instruments triple-channel current and bus voltage monitor — for multi-rail systems where three INA226s would waste board space and I2C addresses: three high-side shunt channels (0 to 26V buses) with 13-bit resolution, programmable conversion times and averaging, plus critical and warning alerts per channel over a single I2C/SMBus interface. One chip watches three power rails with independent out-of-range detection — the power-valid and timing-control pins coordinate sequencing across rails. Selection advice: the three channels share one I2C address block (four programmable addresses) — for more than three rails add a second INA3221 rather than mixing families; for per-channel wattage readouts use three INA226s instead, since the 3221 reports shunt and bus voltage without the power multiplier. The RGV suffix is the VQFN-16 package — confirm thermal pad soldering in your assembly process. Parameters verified against Texas Instruments documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.
INA3221 is a Triple current monitor from Texas Instruments, orderable in the VQFN-16 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.
When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.
Exact MPN, manufacturer and suffix
Supplier type, quantity and freshness
Lot, labels, photos and documents
Price, lead time, payment and shipping
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. INA3221 names the VQFN-16 configuration; a code that differs by even one suffix character may be a different device. Always quote the complete code exactly as it appears on your BOM.
The package (VQFN-16) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.
Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.
Add INA3221 to your RFQ with the complete ordering code, the manufacturer (Texas Instruments), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.