Texas Instruments INA199B2QDCKRQ1, Automotive AEC-Q100 Zero-Drift Current Sense Amplifier, ±1.5% accuracy, -0.1V to 26V input, SC-70-6 package, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Series | Automotive, AEC-Q100, Zero-Drift |
| Mounting | Surface Mount |
| Voltage - input | -0.1V ~ 26V |
| Operating temperature | -40°C ~ 125°C |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Accuracy | ±1.5% |
| Function | Current Sense |
| Case | 6-TSSOP, SC-88, SOT-363 |
| Sensing method | High/Low-Side |
The Texas Instruments INA199B2QDCKRQ1 is a zero-drift current-sense amplifier rated for automotive environments. It monitors current on the high or low side of the supply rail, converting the voltage across an external shunt resistor into a ground-referenced output.
Housed in a 6-pin SC-70-6 (also known as SOT-363), the part is surface-mount. The supplier device package is SC-70-6.
Yes, the INA199B2QDCKRQ1 is part of the Automotive, AEC-Q100 series, meaning it is qualified for automotive-grade applications including under-hood and chassis-domain electronics.
The accuracy is ±1.5% over the full -40°C to 125°C temperature range, which sets the system calibration budget for shunt resistor selection and ADC scaling.
The TPS26610DDFR and TPS26621DRCR are also automotive-grade current-sense or eFuse devices from TI, but they are not pin-compatible replacements — the TPS26610 is a current regulator in a different package, and the TPS26621 is an electronic fuse with 5% accuracy. For a direct functional equivalent, stay within the INA199 family for the same pinout and accuracy tier.