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Texas Instruments TMCS1101A4UQDR — Discrete Semiconductors
Texas Instruments

TMCS1101A4UQDR Hall Effect Current Sensor, 400mV/A, 80kHz

MPNTMCS1101A4UQDR
End of Life

Texas Instruments TMCS1101A4UQDR, Hall Effect current sensor, unidirectional, AC/DC, ratiometric voltage output, 400mV/A sensitivity, 80kHz bandwidth, 6.5µs response, 8-SOIC package, -40 to 125°C.

$4.22Ref. price · indicative, final on quote
TMCS1101A4UQDR datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

TMCS1101A4UQDR Technical Specifications
ParameterValue
Sensor typeHall Effect
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - supply6mA
Frequency80kHz
Response time6.5µs
Operating temperature-40°C ~ 125°C (TA)
OutputRatiometric, Voltage
PackageTape & Reel (TR); Cut Tape (CT)
Linearity±0.05%
Sensitivity400mV/A
PolarizationUnidirectional
For measuringAC/DC
Case8-SOIC (0.154\", 3.90mm Width)
Number of channels1

Product details

What this Hall-effect sensor does on your board

The Texas Instruments TMCS1101A4UQDR is a unidirectional Hall-effect current sensor with ratiometric voltage output. Sensitivity is 400 mV/A, bandwidth 80 kHz, response time 6.5 µs, operating from -40°C to 125°C.

6.5 µs response time — where it fits and where it doesn't

The 80 kHz bandwidth and 6.5 µs response time suit motor-drive current loops. For higher switching frequencies, consider a higher-bandwidth isolated amplifier.

Package and supply — what to plan for on the layout

The 8-SOIC package (3.90 mm body width) uses a standard footprint. Supply range is 4.5 V to 5.5 V; maximum supply current is 6 mA.

Unidirectional — not a bidirectional replacement

This sensor measures current in one polarity only. For bidirectional sensing, use a bidirectional Hall sensor.

Frequently asked questions

What is the sensitivity of TMCS1101A4UQDR?

The sensitivity is 400 mV/A, meaning the output voltage increases by 400 mV for each ampere of sensed current.

Is TMCS1101A4UQDR unidirectional or bidirectional?

It is unidirectional — it measures current in one polarity only. For bidirectional sensing, use the TMCS1101B or TMCS1100 series.

What is the closest pin-compatible alternative to TMCS1101A4UQDR?

The TMCS1101 family shares the same pinout across sensitivity options. The TMCS1101A1U (100 mV/A) and TMCS1101A2U (200 mV/A) are drop-in replacements if the system gain can be adjusted.