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

MLX91209

The MLX91209 is a fully customer-programmable monolithic sensor IC packaged in standard SIP package. The Hall current sensor IC provides a high speed analog output signal proportional to the external applied flux density. The MLX91209 current sensor enables the user to construct a precise current sensor solution with fast response time of 3µs.

Read more

Top features

  • Programmable high speed current sensor IC

  • Fast response time < 3µs

  • Large bandwidth DC - 200 kHZ

  • Fast analog output (12 bits resolution DAC)

  • Selectable ratio-metric output

  • 48 bit ID number

  • Single die SIP (VA) package and RoHS compliant

  • Lead-free component, suitable for lead-free soldering, MSL3
Discover all features
250 kHz Hall current sensor IC with enhanced thermal and lifetime stability - MLX91209

Product description

The MLX91209 is a fully customer-programmable monolithic sensor IC packaged in standard SIP package. The Hall current sensor IC provides a high speed analog output signal proportional to the external applied flux density. The MLX91209 current sensor enables the user to construct a precise current sensor solution with fast response time of 3µs.

Main features

The MLX91209 sensor IC is automotive qualified and particularly appropriate for DC and/or AC current measurements up to 200 kHz with galvanic isolation, fast response time and small package size. The current sensor features over voltage and reverse voltage protection including diagnostics. The transfer characteristic of the MLX91209 is fully customer programmable (offset, sensitivity and response time).

Current sensor applications

In the typical application the sensor IC is used in combination with a ring shaped soft ferromagnetic core. The Hall IC is placed in a small air gap and the current conductor is passed through the inner part of the ferromagnetic ring. The ferromagnetic ring concentrates and amplifies the magnetic flux on the Hall sensor IC which generates an output voltage proportional to the current.

The MLX91209 is especially well suited for applications requiring very fast response time such as inverters. It can be used in many different fields such as hybrid electric vehicle (HEV), electric vehicle (EV), solar panels, etc.

Product versions

  • MLX91209CA – default magnetic sensitivity 50mV/mT, programmable in range 5 to 150mV/mT

Features and benefits

  • Programmable high speed current sensor IC

  • Fast response time < 3µs

  • Large bandwidth DC - 200 kHZ

  • Fast analog output (12 bits resolution DAC)

  • Selectable ratio-metric output

  • 48 bit ID number

  • Single die SIP (VA) package and RoHS compliant

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

Practical applications

Application E-bike thumbnail

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.
Read more
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).

 

Read more
application Main DCDC thumbnail

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.

Read more
Traction inverter and motor

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.

 

Read more