250 kHz IMC-Hall® current sensor IC with enhanced thermal and lifetime stability

MLX91208

The MLX91208 is a fully customer-programmable monolithic sensor IC packaged in standard SO-8 package. The sensor features the IMC-Hall® technology, which leads to very high sensitivity thanks to integrated magnetic concentrators (IMC) deposited on the die. The Hall Sensor provides a high speed analog output signal proportional to the external applied flux density. The MLX91208 current sensor IC enables the user to construct a precise current sensor solution with fast response time of 3µs.

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Top features

  • Customer programmable high speed current sensor IC

  • Different IMC versions supporting different current ranges

  • Fast response time < 3µs

  • Large bandwidth DC - 250 kHZ

  • Improved lifetime stability

  • Fast analog output

  • 48 bit ID number

  • Single die SO-8 package and green compliant

  • Lead-free RoHS component, suitable for lead free soldering, MSL3
Discover all features
250 kHz IMC-Hall® current sensor IC with enhanced thermal and lifetime stability - MLX91208

Product description

The MLX91208 is a fully customer-programmable monolithic sensor IC packaged in standard SO-8 package. The sensor features the IMC-Hall® technology, which leads to very high sensitivity thanks to integrated magnetic concentrators (IMC) deposited on the die. The Hall Sensor provides a high speed analog output signal proportional to the external applied flux density. The MLX91208 current sensor IC enables the user to construct a precise current sensor solution with fast response time of 3µs.

Our MLX91208 current sensor IC is automotive qualified and particularly appropriate for DC and/or AC current measurements up to 250 kHz offering galvanic isolated current sensing with fast response time and in a surface mount standard package. A proprietary and novel design element allows also reducing drastically long term drift, which warrants stable performance over lifetime.

The transfer characteristic of the MLX91208 is fully customer programmable (offset, sensitivity and response time), compensating for the process variation of the mechanical/magnetic assembly in the application module.

Product versions:

  • MLX91208CAL – programmable magnetic sensitivity: 100 to 700mV/mT

  • MLX91208CAH – programmable magnetic sensitivity: 50 to 300mV/mT

  • MLX91208CAV – programmable magnetic sensitivity: 30 to 200mV/mT

Features and benefits

  • Customer programmable high speed current sensor IC

  • Different IMC versions supporting different current ranges

  • Fast response time < 3µs

  • Large bandwidth DC - 250 kHZ

  • Improved lifetime stability

  • Fast analog output

  • 48 bit ID number

  • Single die SO-8 package and green compliant

  • Lead-free RoHS component, suitable for lead free soldering, MSL3

Practical applications

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Alternative mobility E-bike

Do you want to combine mobility and exercise while still getting support when needed? E-bikes present an attractive option, especially with modern architectures optimized to offer the best assistance at the lowest energy consumption. Keep control on the energy you want to burn.
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PHEV thermal management

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Melexis products enable higher system integration towards a safer and cost-effective thermal management, maximizing the AER and improving the driver experience.

 

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Application diagram onboard charger

Automotive onboard charger

The function of the onboard charger is to efficiently, reliably and safely convert AC electricity from the electrical grid (e.g. household plug) to DC electricity so it can be stored in the battery of the electrified vehicle (xEV).

 

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Automotive main DCDC

The DC/DC converter produces low voltage DC electricity (e.g. 12 V, 14 V, 24 V) from the high voltage battery (e.g. 48 V up to 800 V) to supply the boardnet and charge the low voltage battery.

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Automotive traction inverter & motor

In electric vehicles, the inverter converts DC power from the battery to AC power for the motor drive, which in turn transforms it into propulsion power. The efficiency of this system has a direct impact on the all-electric range, road performance and comfort.

 

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