Melexis MLX91221KDF-ABF-020-TU

The MLX91221 is an Integrated Current Sensor that senses the current flowing through the low impedance leadframe of the SOIC package. By virtue of fixing the current conductor position with respect to the monolithic CMOS sensor, a fully integrated Hall-effect current sensor is obtained, that is factory calibrated.

Inside the package, the magnetic flux density generated by the current flow is sensed differentially by two sets of Hall plates. As a result the influence of external disturbing fields is minimized in the fast analog front-end. The residual signal is amplified to provide a high-speed linear analog output voltage.

The close proximity of the Hall plates to the current conductor ensures a high signal-to-noise ratio and an accurate signal over temperature. With this miniaturization, high voltage isolation ratings are still maintained between the primary and their opposing secondary side leads of the package.

• Factory trimmed AC and DC current sensor
• Analog ratiometric or fixed output voltage
• Combining sensing element, signal conditioning & isolation in SOIC package
• No application programming required
• High speed sensing: DC to 300kHz bandwidth, 2μs response time
• Robust against external magnetic fields
• No magnetic hysteresis
• Double overcurrent detection (SOIC-16)
• Low ohmic losses of integrated conductor: 1.09mΩ SOIC-8 / 0.89mΩ SOIC-16
• SOIC-8 narrow body and SOIC-16 wide body package, RoHS compliant
• Lead free component, suitable for lead free soldering profile up to 260℃, MSL3
• Rated voltage isolation: 2.4kV RMS for SOIC-8, 4.8kV RMS for SOIC-16

• AC and DC Chargers
• Electric Drives
• DCDC converters
• Solar Power Supplies
• Demand/Load control