Product details

Continuous current (Max) (A) 20 Isolation working voltage VIOWM (rms) (V) 296 Sensitivity (Typ) (mV/A) 50, 100, 200, 400 Sensitivity error (%) 0.9 Sensitivity error drift (+/-) (Max) (ppm/°C) 50 Input offset current (+/-) (Max) (mA) 40 Input offset current drift (+/-) (Typ) (µA/°C) 0.2 Features Internal Zero Current Reference Voltage Small signal bandwidth (kHz) 80 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 6 CMTI (kV/µs) 50 Rating Catalog Operating temperature range (C) -40 to 125
Continuous current (Max) (A) 20 Isolation working voltage VIOWM (rms) (V) 296 Sensitivity (Typ) (mV/A) 50, 100, 200, 400 Sensitivity error (%) 0.9 Sensitivity error drift (+/-) (Max) (ppm/°C) 50 Input offset current (+/-) (Max) (mA) 40 Input offset current drift (+/-) (Typ) (µA/°C) 0.2 Features Internal Zero Current Reference Voltage Small signal bandwidth (kHz) 80 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 6 CMTI (kV/µs) 50 Rating Catalog Operating temperature range (C) -40 to 125
SOIC (D) 8 19 mm² 4.9 x 3.9
  • Total error: ±1% typical, ±3% maximum, –40°C to 125°C
    • Sensitivity error: ±0.9%
    • Offset error: 40 mA
    • Offset drift: 0.2 mA/°C
    • Linearity error: 0.5%
  • Multiple sensitivity options:
    • TMCS1107A1B/U: 50 mV/A
    • TMCS1107A2B/U: 100 mV/A
    • TMCS1107A3B/U: 200 mV/A
    • TMCS1107A4B/U: 400 mV/A
  • Zero drift internal reference
  • Bidirectional and unidirectional current sensing
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • 3-kVRMS isolation rating
  • Robust 420-V lifetime working voltage
  • Safety related certifications
    • UL 1577 component recognition program
    • IEC/CB 62368-1
  • Total error: ±1% typical, ±3% maximum, –40°C to 125°C
    • Sensitivity error: ±0.9%
    • Offset error: 40 mA
    • Offset drift: 0.2 mA/°C
    • Linearity error: 0.5%
  • Multiple sensitivity options:
    • TMCS1107A1B/U: 50 mV/A
    • TMCS1107A2B/U: 100 mV/A
    • TMCS1107A3B/U: 200 mV/A
    • TMCS1107A4B/U: 400 mV/A
  • Zero drift internal reference
  • Bidirectional and unidirectional current sensing
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • 3-kVRMS isolation rating
  • Robust 420-V lifetime working voltage
  • Safety related certifications
    • UL 1577 component recognition program
    • IEC/CB 62368-1

The TMCS1107 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 <3% 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 420-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 multiple sensitivity options. Fixed sensitivity allows the TMCS1107 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 TMCS1107 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 TMCS1107 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 <3% 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 420-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 multiple sensitivity options. Fixed sensitivity allows the TMCS1107 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 TMCS1107 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.

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Technical documentation

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Type Title Date
* Data sheet TMCS1107 3% Basic Isolation Hall-Effect Current Sensor With ±420-V Working Voltage datasheet (Rev. A) PDF | HTML 01 Jul 2021
Application note TMCS110x Layout Challenges and Best Practices PDF | HTML 03 Dec 2022
Application note Current Sensing in Collaborative and Industrial Robotic Arms PDF | HTML 07 Nov 2022
White paper Improve High-Voltage System Efficiency With Zero-Drift Hall-Effect Current Sense (Rev. A) PDF | HTML 15 Mar 2022
EVM User's guide TMCS1107EVM User's Guide PDF | HTML 04 Dec 2020
Application note Thermal Implementation Guide for In-Package Magnetic Current Sensors PDF | HTML 12 Jul 2020
Application note Precision Designs with Non-Ratiometric Magnetic Current Sensors 01 Jul 2019
Application note Low-Drift, Precision, In-Line Isolated Magnetic Motor Current Measurements 15 Apr 2019

Design & development

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

Evaluation board

TMCS1107EVM — TMCS1107 isolated Hall-effect current sensing evaluation module

The TMCS1107EVM is intended to facilitate rapid, convenient use of the TMCS1107, an isolated Hall-effect precision current sense monitor utilizing an internal ratiometric reference. This evaluation module (EVM) allows the designer to push the max operating current through the Hall-input side while (...)

User guide: PDF | HTML
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Simulation model

TMCS1107A1B PSpice Model

SBOMBP2.ZIP (190 KB) - PSpice Model
Simulation model

TMCS1107A1U PSpice Model

SBOMBO4.ZIP (196 KB) - PSpice Model
Simulation model

TMCS1107A2B PSpice Model

SBOMBO1.ZIP (195 KB) - PSpice Model
Simulation model

TMCS1107A2U PSpice Model

SBOMBO5.ZIP (195 KB) - PSpice Model
Simulation model

TMCS1107A3B PSpice Model

SBOMBO2.ZIP (195 KB) - PSpice Model
Simulation model

TMCS1107A3U PSpice Model

SBOMBO6.ZIP (193 KB) - PSpice Model
Simulation model

TMCS1107A4B PSpice Model

SBOMBO3.ZIP (195 KB) - PSpice Model
Simulation model

TMCS1107A4U PSpice Model

SBOMBP0.ZIP (193 KB) - PSpice Model
Simulation model

TMCS1107_8 TINA-TI Spice Model

SBOMBP1.ZIP (55 KB) - TINA-TI Spice Model
Package Pins Download
SOIC (D) 8 View options

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