Top

Product details

Parameters

Continuous current (Max) (A) 20 Isolation working voltage VIOWM (rms) (V) 424 Sensitivity (Typ) (mV/A) 50, 100, 200, 400 Sensitivity error (%) 0.2 Sensitivity error drift (+/-) (Max) (ppm/°C) 50 Input offset current (+/-) (Max) (mA) 25 Input offset current drift (+/-) (Typ) (µA/°C) 0.1 Features Externally Driven Zero Current Reference Voltage Small signal bandwidth (kHz) 80 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 5 CMTI (kV/µs) 25 TI functional safety category Functional Safety-Capable open-in-new Find other Hall-effect current sensors

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Hall-effect current sensors

Features

  • 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
open-in-new Find other Hall-effect current sensors

Description

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.

open-in-new Find other Hall-effect current sensors
Download
Similar products you might be interested in
open-in-new Compare products
Pin-for-pin with same functionality to the compared device.
NEW TMCS1101-Q1 ACTIVE Automotive, precision isolated current sensor with internal reference Same functionality but with an internal reference voltage

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Type Title Date
* Data sheet TMCS1100-Q1 AEC-Q100, 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage datasheet Jun. 04, 2021
User guide TMCS1100EVM User's Guide (Rev. B) Aug. 25, 2021
Functional safety information TMCS1100-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Mar. 30, 2021
Application note Thermal Implementation Guide for In-Package Magnetic Current Sensors Jul. 12, 2020
White paper Improving Performance in High-Voltage Systems With Zero-Drift Hall-Effect Curren Jun. 29, 2020
Application note Precision Designs with Non-Ratiometric Magnetic Current Sensors Jul. 01, 2019
Application note Low-Drift, Precision, In-Line Isolated Magnetic Motor Current Measurements Apr. 15, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
59
Description
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 (...)
Features
  • Evaluation of the TMCS1100Ax in all gain options
  • Test points to allow ease of acess to device pins
  • Large copper planes to help with heat dissipation
  • Large lug connectors to connect the EVM to large current carrying leads

Design tools & simulation

SIMULATION MODEL Download
SBOMB06A.TSC (171 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMB07B.ZIP (27 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOMBE3.ZIP (21 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBE5.ZIP (21 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBE6.ZIP (22 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBE7.ZIP (20 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Automotive 400-V battery to 12-V, 3.6-kW DC/DC converter reference design
TIDA-020031 — This reference design is a 3.6-kW, automotive 400-V to 12-V unidirectional converter which converts the 200-V to 450-V DC input to 12-V, 300-A maximum output. Circuit breaker is applied for overcurrent and overvoltage protection. The converter is designed with SiC MOSFETs on the high voltage side (...)
document-generic Schematic

CAD/CAE symbols

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