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Texas Instruments TMCS1107A3BQDT — Discrete Semiconductors

TMCS1107A3BQDT Hall Effect Current Sensor, ±11.25A, 200mV/A

MPNTMCS1107A3BQDT
End of Life

Texas Instruments TMCS1107A3BQDT, Automotive Hall Effect Current Sensor, Bidirectional AC/DC, ±11.25A, 200mV/A Sensitivity, Ratiometric Voltage Output, 80kHz Bandwidth, 8-SOIC Package.

$3.88Ref. price · indicative, final on quote
Texas Instruments TMCS1107A3BQDT datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TMCS1107A3BQDT specifications
ParameterValue
Sensor typeHall Effect
MountingSurface Mount
Supply voltage3V ~ 5.5V
Current - sensing±11.25A
Current - supply6mA
Frequency80kHz
Response time6.5µs
Operating temperature-40°C ~ 125°C (TA)
GradeAutomotive
OutputRatiometric, Voltage
PackageTape & Reel (TR); Cut Tape (CT)
Linearity±0.5%
Sensitivity200mV/A
PolarizationBidirectional
For measuringAC/DC
QualificationAEC-Q100
Case8-SOIC (0.154\", 3.90mm Width)
Channels1

Product details

What this Hall sensor brings to a current-sense node

The TI TMCS1107A3BQDT is a single-channel Hall-effect current sensor that outputs a ratiometric voltage proportional to the sensed current. It measures both AC and DC over a ±11.25 A range with a sensitivity of 200 mV/A and linearity of ±0.5%.

Housed in an 8-SOIC (3.90 mm width) package, surface-mount. The Hall element is internal — no external magnetic core or shield required. The 6 mA max supply current keeps the self-heating low, so thermal derating on the PCB is minimal. Standard SOIC-8 footprint, no special layout beyond keeping the high-current traces short and wide to minimise IR drop that could couple into the sense path.

Frequently asked questions

What is the TMCS1107A3BQDT sensitivity in mV/A?

The sensitivity is 200 mV/A, meaning each ampere of sensed current produces 200 mV of output voltage change (with a 5 V supply).

Is TMCS1107A3BQDT compatible with 3.3V systems?

Yes. The supply range of 3 V to 5.5 V includes 3.3 V directly. The output is ratiometric, so at 3.3 V supply the full-scale voltage scales proportionally — ensure the ADC reference tracks the supply or adjust the scaling in firmware.

Can TMCS1107A3BQDT measure both AC and DC?

Yes. The sensor is bidirectional and rated for both AC and DC current measurement over the ±11.25 A range.

What is the closest pin-compatible alternative to TMCS1107A3BQDT?

Within the TMCS1107 family, other sensitivity variants (e.g., A1B with 50 mV/A, A2B with 100 mV/A) are pin-compatible and share the same 8-SOIC package and supply range. The A3B variant shown here is the 200 mV/A option — the choice depends on the required full-scale output voltage for the ADC input range.