Skip to main content
Texas Instruments INA229AQDGSRQ1 — Microcontrollers & Processors (MCU / MPU / DSP)

INA229AQDGSRQ1 Current Monitor, AEC-Q100, ±0.01% Accuracy

MPNINA229AQDGSRQ1
End of Life

Texas Instruments INA229AQDGSRQ1 automotive current monitor, ±0.01% accuracy, high-side sensing, 2.7V–5.5V supply, 10-VSSOP package, AEC-Q100 qualified.

$6.7Ref. price · indicative, final on quote
Packaging10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

INA229AQDGSRQ1 specifications
ParameterValue
MountingSurface Mount
Voltage - input2.7V ~ 5.5V
Output current10mA
Operating temperature-40°C ~ 125°C (TA)
GradeAutomotive
PackageTape & Reel (TR); Cut Tape (CT)
Accuracy±0.01%
FunctionCurrent Monitor
QualificationAEC-Q100
Case10-TFSOP, 10-MSOP (0.118\", 3.00mm Width)
Sensing methodHigh-Side

Product details

The INA229AQDGSRQ1: The ±0.01% accuracy figure is the total unadjusted error across the full input range — this is the gain error, offset, and non-linearity combined. For a 1 mΩ shunt carrying 10 A, the measured voltage is 10 mV; a 0.01% error here is 1 µV, which translates to 1 mA of current-read uncertainty — well below the noise floor of most automotive loads. High-side sensing means the monitor sits between the supply rail and the load, measuring the voltage drop across an external shunt resistor. The 10 mA output current rating is the maximum the device can source or sink on its output pin — sufficient to drive a typical ADC input or a logic-level load without an external buffer.

10-VSSOP package — board-fit constraints

The 10-VSSOP (3.00 mm × 3.00 mm body, 0.50 mm pitch) is a compact surface-mount package suited for space-constrained automotive modules like battery junction boxes or transmission control units. Available in Tape & Reel (TR) and Cut Tape (CT) — the TR option is the standard for pick-and-place assembly; CT is for prototyping or low-volume builds.