To satisfy the evolving demands that requirements such as increased energy efficiency place on current sensing technologies in systems ranging from solar inverters and electric drives, server and telecom applications, power supplies and home appliances through to electric and hybrid vehicles, Infineon Technologies has developed the TLI4970.
The new chip is a high-precision current sensor based on Hall effect technology, with galvanic isolation between the primary side (conductor rail) and the secondary side (interface to the microcontroller). It is housed in a compact SMD package yet its differential measuring method permits excellent suppression of stray fields.
The fully digital sensor is designed for ease of use, as no external calibration or additional components (such as A/D converters, operational amplifiers or voltage references) are required. It achieves a very low offset of just 25 mA and incorporates structures for measuring the temperature and mechanical stress on the device, allowing it to guarantee high accuracy by compensating for these effects dynamically.
Using the TLI4970, it is possible to measure alternating and direct currents up to 50 A in such applications as solar inverters, power supplies with power factor correction (PFC), charging devices and electric drives. The contactless measuring principle does not cause any additional losses, making it ideally suited for current-saving designs.
Protection of the power stage is provided through a separate signal path to keep latency to a minimum: the sensor needs only 1,8 μs to detect a related error condition. To fine tune the over-current threshold to the requirements of an application, a system developer can program both the current value and the subsequent filtering in the sensor.
Integration of the current path into the SMD packaging enables calibration of the sensor before shipment. The IC provides measuring results (13-bit current value) via a 16-bit SPI interface, and supports a galvanic isolated measurement with up to 600 V operation voltage and 3,6 kV test voltage.
IMU with dual-sensing capability EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.
Read more...Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.
Read more...Precision JFET op-amp Altron Arrow
Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.
Read more...A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
Read more...2-wire quad voltage output DAC Altron Arrow
Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.
Read more...Dual-channel ADC for RF applications RFiber Solutions
Analogue, Mixed Signal, LSI
The ARF0471 from Advanced RF is a dual-channel, 14-bit, 3 GSPS ADC, which features an on-chip buffer and sample-and-hold circuit.
Read more...Infineon launches Edge Ai software solution Altron Arrow
Analogue, Mixed Signal, LSI
Infineon has introduced DEEPCRAFT, a new software solution category brand for Edge AI and machine learning, after the company recognised the huge potential of Edge AI for the market.
Read more...16-bit voltage output denseDAC Altron Arrow
Analogue, Mixed Signal, LSI
The AD5766 uses a versatile four-wire serial interface that operates at clock rates of up to 50 MHz for write mode, and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
printer friendly version