Product details

Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 424 Magnetic sensitivity (typ) (mV/A) 50, 100, 200, 400 Input offset current (±) (max) (mA) 45, 50, 52.5, 60, 70, 80, 90, 100 Input offset current drift (±) (typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Iq (max) (mA) 6 CMTI (kV/µs) 25 Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.3 Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Catalog Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Basic Surge isolation voltage (VIOSM) (VPK) 6000
Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 424 Magnetic sensitivity (typ) (mV/A) 50, 100, 200, 400 Input offset current (±) (max) (mA) 45, 50, 52.5, 60, 70, 80, 90, 100 Input offset current drift (±) (typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Iq (max) (mA) 6 CMTI (kV/µs) 25 Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.3 Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Catalog Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Basic Surge isolation voltage (VIOSM) (VPK) 6000
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Total error: ±0.51% typical, ±1.15% maximum, –40°C to 85°C
    • Sensitivity error: ±0.5%
    • Offset error: 9 mA
    • Offset drift: 0.04 mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3-kVRMS isolation rating
  • Robust 600-V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U: 50 mV/A
    • TMCS1101A2B/U: 100 mV/A
    • TMCS1101A3B/U: 200 mV/A
    • TMCS1101A4B/U: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1
  • Total error: ±0.51% typical, ±1.15% maximum, –40°C to 85°C
    • Sensitivity error: ±0.5%
    • Offset error: 9 mA
    • Offset drift: 0.04 mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3-kVRMS isolation rating
  • Robust 600-V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U: 50 mV/A
    • TMCS1101A2B/U: 100 mV/A
    • TMCS1101A3B/U: 200 mV/A
    • TMCS1101A4B/U: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1

The TMCS1101 is a galvanically isolated Hall-effect current sensor capable of DC or AC current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature-compensated signal chain provides < 1.5% full-scale error across the device temperature range.

The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity.

The output voltage is proportional to the input current with four sensitivity options. Fixed sensitivity allows the TMCS1101 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. Both unidirectional and bidirectional sensing variants are available.

The TMCS1101 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –40°C to +125°C.

The TMCS1101 is a galvanically isolated Hall-effect current sensor capable of DC or AC current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature-compensated signal chain provides < 1.5% full-scale error across the device temperature range.

The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity.

The output voltage is proportional to the input current with four sensitivity options. Fixed sensitivity allows the TMCS1101 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. Both unidirectional and bidirectional sensing variants are available.

The TMCS1101 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –40°C to +125°C.

Download View video with transcript Video

TMCS1101 won a gold Leadership in Engineering Achievement Program (LEAP) Award in the Switches & Sensors category.

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TMCS1100 ACTIVE ±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with external reference Same functionality, but with an external VREF pin.
TMCS1107 ACTIVE ±420V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference Same functionality with reduced accurcay and 420-V operational limit.
TMCS1108 ACTIVE ±100V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference Same functionality with reduced accurcay and 100-V operational limit.

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TMCS1101EVM — TMCS1101 isolated Hall-effect current sensing evaluation module

The TMCS1101EVM is a tool intended to facilitate rapid, convenient use of the TMCS1101, an isolated Hall-effect precision current sense monitor utilizing an internal ratiometric reference. This evaluation module allows the user push the max operating current through the Hall-input side while (...)
User guide: PDF
Not available on TI.com
Simulation model

TMCS1101 TINA-TI Reference Design (Rev. A)

SBOMB08A.TSC (231 KB) - TINA-TI Reference Design
Simulation model

TMCS1101 TINA-TI SPICE Model (Rev. B)

SBOMB09B.ZIP (54 KB) - TINA-TI Spice Model
Simulation model

TMCS1101A1B PSpice Model

SBOMBE1.ZIP (20 KB) - PSpice Model
Simulation model

TMCS1101A1U PSpice Model

SBOMBD9.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A2B PSpice Model

SBOMBD8.ZIP (22 KB) - PSpice Model
Simulation model

TMCS1101A2U PSpice Model

SBOMBD7.ZIP (22 KB) - PSpice Model
Simulation model

TMCS1101A3B PSpice Model

SBOMBD5.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A3U PSpice Model

SBOMBD4.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A4B PSpice Model

SBOMBD3.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A4U PSpice Model

SBOMBD2.ZIP (21 KB) - PSpice Model
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos