TMCS1108-Q1

AKTIV

AEC-Q100, isolierter Hall-Effekt-Stromsensor, ±100 V, mit interner Referenz

TMCS1108-Q1

AKTIV

Produktdetails

Continuous current (max) (A) 30 Working isolation voltage (VIOWM) (Vrms) 71 Rating Automotive Sensitivity (typ) (mV/mT) 50000, 100000, 200000, 400000 Input offset current (±) (max) (mA) 60, 75, 100, 160 Input offset current drift (±) (typ) (µA/°C) 0.2 Features Internal Zero Current Reference Voltage Iq (max) (mA) 6 Small-signal bandwidth (kHz) 80 Sensitivity error (%) 1.25 Sensitivity error drift (±) (max) (ppm/°C) 105 Propagation delay time (typ) (ns) 4000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Functional
Continuous current (max) (A) 30 Working isolation voltage (VIOWM) (Vrms) 71 Rating Automotive Sensitivity (typ) (mV/mT) 50000, 100000, 200000, 400000 Input offset current (±) (max) (mA) 60, 75, 100, 160 Input offset current drift (±) (typ) (µA/°C) 0.2 Features Internal Zero Current Reference Voltage Iq (max) (mA) 6 Small-signal bandwidth (kHz) 80 Sensitivity error (%) 1.25 Sensitivity error drift (±) (max) (ppm/°C) 105 Propagation delay time (typ) (ns) 4000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Functional
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • 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:
    • TMCS1108A1B/U -Q1: 50 mV/A
    • TMCS1108A2B/U -Q1: 100 mV/A
    • TMCS1108A3B/U -Q1: 200 mV/A
    • TMCS1108A4B/U -Q1: 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
  • Robust 100-V galvanic isolation
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • 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:
    • TMCS1108A1B/U -Q1: 50 mV/A
    • TMCS1108A2B/U -Q1: 100 mV/A
    • TMCS1108A3B/U -Q1: 200 mV/A
    • TMCS1108A4B/U -Q1: 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
  • Robust 100-V galvanic isolation

The TMCS1108-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 <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 100-V functional 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 TMCS1108-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. Both unidirectional and bidirectional sensing variants are available.

The TMCS1108-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 TMCS1108-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 <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 100-V functional 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 TMCS1108-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. Both unidirectional and bidirectional sensing variants are available.

The TMCS1108-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.

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TMCS1108-Q1 AEC-Q100, 3% Functional Isolation Hall-Effect Current Sensor With ±100-V Working Voltage datasheet PDF | HTML 01.07.2021
Application brief Low-Drift, Precision, In-Line Isolated Magnetic Motor Current Measurements (Rev. A) 24.07.2023
Anwendungshinweis TMCS110x Layout Challenges and Best Practices PDF | HTML 03.12.2022
Whitepaper Improve High-Voltage System Efficiency With Zero-Drift Hall-Effect Current Sense (Rev. A) PDF | HTML 15.03.2022
Informationen zur funktionalen Sicherheit TMCS1108-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 30.03.2021
Anwendungshinweis Thermal Implementation Guide for In-Package Magnetic Current Sensors PDF | HTML 12.07.2020
Application brief Precision Designs with Non-Ratiometric Magnetic Current Sensors 01.07.2019

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