Product details

Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 424 Input offset current (±) (max) (mA) 40, 47.5, 50, 60 Input offset current drift (±) (typ) (µA/°C) 0.1 Features Externally Driven Zero Current Reference Voltage Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Iq (max) (mA) 5 Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.2 Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Automotive TI functional safety category Functional Safety-Capable 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 Input offset current (±) (max) (mA) 40, 47.5, 50, 60 Input offset current drift (±) (typ) (µA/°C) 0.1 Features Externally Driven Zero Current Reference Voltage Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Iq (max) (mA) 5 Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.2 Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Automotive TI functional safety category Functional Safety-Capable 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
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • Total error: ±0.4% typical, ±0.9% maximum, –40°C to 85°C
    • Sensitivity error: ±0.4%
    • Offset error: 7 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
  • External reference voltage
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1100A1 -Q1: 50 mV/A
    • TMCS1100A2 -Q1: 100 mV/A
    • TMCS1100A3 -Q1: 200 mV/A
    • TMCS1100A4 -Q1: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • Total error: ±0.4% typical, ±0.9% maximum, –40°C to 85°C
    • Sensitivity error: ±0.4%
    • Offset error: 7 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
  • External reference voltage
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1100A1 -Q1: 50 mV/A
    • TMCS1100A2 -Q1: 100 mV/A
    • TMCS1100A3 -Q1: 200 mV/A
    • TMCS1100A4 -Q1: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1

The TMCS1100-Q1 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% 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 TMCS1100-Q1 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. The VREF input pin provides a variable zero-current output voltage, enabling bidirectional or unidirectional current sensing.

The TMCS1100-Q1 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 TMCS1100-Q1 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% 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 TMCS1100-Q1 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. The VREF input pin provides a variable zero-current output voltage, enabling bidirectional or unidirectional current sensing.

The TMCS1100-Q1 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

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TMCS1101-Q1 ACTIVE AEC-Q100, ±600-V, precision, isolated current sensor with internal reference Same functionality but with an internal reference voltage

Technical documentation

Design & development

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

Evaluation board

TMCS1100EVM — TMCS1100 isolated Hall-effect current sensing evaluation module

The TMCS1100EVM is a tool intended to facilitate rapid, convenient use of the TMCS1100, an isolated Hall-effect precision crrent sense monitor utilizing an external reference.  This evaluation module allows the user to push the max operating current through the Hall-input side while measuring (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TMCS1100 TINA-TI Reference Design (Rev. A)

SBOMB06A.TSC (171 KB) - TINA-TI Reference Design
Simulation model

TMCS1100 TINA-TI SPICE Model (Rev. B)

SBOMB07B.ZIP (27 KB) - TINA-TI Spice Model
Simulation model

TMCS1100A1 PSpice Model

SBOMBE7.ZIP (20 KB) - PSpice Model
Simulation model

TMCS1100A2 PSpice Model

SBOMBE6.ZIP (22 KB) - PSpice Model
Simulation model

TMCS1100A3 PSpice Model

SBOMBE5.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1100A4 PSpice Model

SBOMBE3.ZIP (21 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian

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
Information included:
  • Fab location
  • Assembly location

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