MLX91220 - 0-50 A isolated 5 V integrated Hall current sensor
The MLX91220 is a 0-50 A isolated integrated Hall-effect current-sensor with dual OCD, operating on a 5V supply. It is the easiest all-in-one integrated current sensor with the right balance of small footprint, low impedance, high bandwidth, isolation and more general features. The MLX91220 is an integrated current Sensor that senses the current flowing through the leadframe of the package and therefore minimizes the thermal losses encountered with more standard solutions.
MLX91220 - 0-50 A isolated 5 V integrated Hall current sensor
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The MLX91220 is a 0-50 A isolated integrated Hall-effect current-sensor with dual OCD, operating on a 5V supply. It is the easiest all-in-one integrated current sensor with the right balance of small footprint, low impedance, |
high bandwidth, solation and more general features. The MLX91220 is an integrated current Sensor that senses the current flowing through the leadframe of the package and therefore minimizes the thermal losses encountered with more |
Key features MLX91220
- Factory trimmed AC and DC current sensor
- Certified voltage isolation as per IEC/UL 62368-1
- Basic and reinforce isolation
- 3.55 kV RMS for SOIC-8
- 5.4 kV RMS for SOIC-16 - Analog ratiometric or fixed output voltage (internal or external reference)
- High speed sensing
- DC to 300 kHz bandwidth
- 2μs response time - Robust against external magnetic field
- No magnetic hysteresis
- Double overcurrent detection (SOIC-16)
- RoHS compliant packages
- SOIC-8 narrow body
- SOIC-16 wide - Low ohmic losses of integrated conductor
- 1.09 mΩ SOIC-8
- 0.89 mΩ SOIC-16 - AEC-Q100 automotive qualified
MLX91220 Application
Automotive
- OBC (On Board Charger)
- DCDC converter high side
- PTC heater
- E-compressor
- EESM (Electrically Excited Synchronous Motor) low rotor current
Industrial
- Small electric drives and HVAC compressor
- Power supplies (Uninterrupted or Switch mode)
- Solar (Input current and Maximum Power Point Tracking)
- White goods and demand/load control
- EVSE (Electric Vehicle Supply Equipment) such as emergency charging cables, AC chargers, DC fast chargers
The current sensors can operate in two measurement modes:
- Ratiometric mode, addressing the applications mandating output voltage scaling to the supply
- Fixed mode (differential), addressing the use of a reference voltage
Among all the new features integrated, the (dual) overcurrent detection on-chip with a separated output reduced the BoM by reducing the need for external comparators for overcurrent protection.
Factory trimmed (mV/A), the MLX91220 is a plug & play solution. No EoL (End of Line) is required.
MLX91220: operate on a 5 V supply
MLX91221: operate on a 3.3 V supply
A development kit DVK91220 is available, allowing the first application tests without having to customize a PCB.
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