High-Speed Linear Hall Sensor is optimized for stability.
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Press Release Summary:
Suited for measuring DC and AC currents up to 200 kHz, MLX91209CA Linear Hall IC has programmable 5–150 mV/mT sensitivity range. Thermal and lifetime stability provides engineers with fully programmable critical characteristics to meet various current sensing applications. Parameters, such as sensitivity and offset, are stored in internal EEPROM; calibration is accomplished using PTC protocol; and linear analog output permits use of sensor in applications requiring 3 µsec response.
Original Press Release:
High Speed Programmable Linear Hall Sensor Upgraded for Improved Stability
Tessenderlo, Belgium —Â Measuring electrical current in a conductor is critical to many systems. Classic measurement techniques use shunt resistors, current transformers or magnetic field sensors. Hall effect sensors are frequently the choice when measuring DC currents. However the new, improved MLX91209CA can be applied in all current sensing situations. This versatile, high speed Linear Hall IC, which features a programmable sensitivity range from 5 to 150mV/mT, is suitable for measuring DC and AC currents up to 200kHz.
The MLX91209CA’s strong thermal and lifetime stability provides design engineers with fully programmable critical characteristics - allowing one single part to meet a wide variety of current sensing applications. Parameters such as sensitivity and offset are stored in an internal EEPROM memory. Calibration is done using Melexis' well-established, proprietary PTC (Programming Through Connector) protocol. This modulates the supply voltage and does not require any additional pin for programming, enabling the most efficient production flows. A linear analog output permits use of the sensor in applications where a very fast response of 3µs is required.
Custom calibration is best performed in-situ after the sensor is fixed with respect to the current conductor and ferromagnetic core so that a calibrated current sensitivity is achieved. Typical accuracy of a current sensing system based on the MLX91209 is better than ±0.5% at room temperature or ±2% over the full temperature range (from -40°C to 125°C) when applying in-circuit end of line calibration. The device is supplied in a 4-pin SIP, RoHS compliant lead-free package.
Key Applications:
Demand for current sensing solutions is growing rapidly with the increased proliferation of alternative vehicles, like Hybrid Electric, Electric and Start/Stop equipped ‘Mild Hybrids’. Battery management systems rely on accurate and stable current sensing to control the charge/discharge cycles. Proper management of the current in and out of modern batteries is essential for safety, battery service life and, in full electric vehicles, predictable range calculation. Â
Continued investment in Solar Power generation and other grid connected energy sources demand accurate and stable monitoring to safely operate on the rapidly expanding ‘Smart Grid’. Here, once again, current sensing is key to the control systems, for the effective integration of small to medium scale power generation systems.
In addition, current sensing is instrumental in the management of power in more traditional electronic systems. Power distribution systems in large scale server installations rely on current sensing to deliver high levels of up-time and predictive maintenance.
With its fast response time and improved stability over operating temperature and over lifetime, the MLX91209CA is highly optimized for the demanding current sensing applications discussed. Engineering samples are available upon request.
To learn more please visit: www.melexis.com/91209
Contact Melexis
Marketing Communications
Peter Riendeau
Melexis Inc
15 Trafalgar Sq., Ste. 100
Nashua, NH 03063
USA
Tel: 603-204-2900
Fax: 603 578-1270
pre@melexis.com
Sales Leads
Susan Brocious
Melexis Inc
15 Trafalgar Sq., Ste. 100
Nashua, NH 03063
USA
Tel: 603-204-2900
Fax: 603 578-1270
sbr@melexis.com
About Melexis
Melexis Microelectronic Integrated Systems N.V. (Euronext Brussels:MELE) imagines, creates and delivers innovative mixed signal integrated circuits. Melexis ICs are driving green solutions that enable our customers to bring more energy efficient automotive systems to market. Melexis product portfolio addresses 4 classes of ICs; Sensor, Optoelectronic, Wireless and Actuators. Sensors include magnetic, MEMS, and sensor interface ICs. Optoelectronic products encompass linear arrays, single point sensors, infrared thermometers and CMOS wide dynamic range and night vision cameras. Wireless ICs focus on RKE, TPMS, ISM band applications, NFC, RFID reader and smart tag solutions. Actuator ICs cover LIN and CAN bus networking ICs and advanced BLDC motor driver technology. Melexis is proud of its participation toward reducing the human race's global environmental footprint.
For more information visit www.melexis.com
Issued by:
Mike Green
Pinnacle Marketing Communications Ltd
Tel: +44 208 4296 543
E-mail: m.green@pinnaclemarcom.com
Web: www.pinnacle-marketing.com
