TMCS1107A3UQDT

TMCS1107A3UQDT 1 Features

TMCS1107A3UQDT 3 Description

• Total error: ±1% typical, ±3% maximum, –40°C to125°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

TMCS1107A3UQDT 2 Applications

Inverter and H-bridge current measurements • Motor and load control • • Power factor correction • Overcurrent protection • DC and AC power monitoringThe TMCS1107 is a galvanically isolated Hall-effectcurrent sensor capable of DC or AC currentmeasurement with high accuracy, excellent linearity,and temperature stability. A low-drift, temperature-compensated signal chain provides <3% full-scaleerror across the device temperature range.The input current flows through an internal 1.8-mΩconductor that generates a magnetic field measuredby an integrated Hall-effect sensor. This structureeliminates external concentrators and simplifiesdesign. Low conductor resistance minimizes powerloss andInherent galvanicinsulation provides a 420-V lifetime working voltageand 3-kVRMS basic isolation between the current pathand circuitry. Integrated electrical shielding enablestransientexcellent common-modeimmunity.thermal dissipation.rejection andThe output voltage is proportional to the input currentwith multiple sensitivity options. Fixed sensitivityallows the TMCS1107 to operate from a single 3-V to5.5-V power supply, eliminates ratiometry errors, andimproves supply noise rejection. The current polarityis considered positive when flowing into the positiveinput pin. Both unidirectional and bidirectional sensingvariants are available.The TMCS1107 draws a maximum supply current of 6mA, and all sensitivity options are specified over theoperating temperature range of –40°C to +125°C.Device Information(1)Typical Application