Melexis MLX91224 & MLX91225 Current Sensor ICs
Melexis MLX91224 and MLX91225 Current Sensor ICs are versatile, plug-and-play, isolated current-sensing platforms designed for automotive electrification and industrial power systems. The integration of a low-impedance primary conductor, Hall-sensing elements, and galvanic isolation in a standard SOIC footprint enables these ICs to eliminate Ohmic losses, bulky external magnetic cores, and intricate end-of-line calibration. These platforms simplify functional safety integration in high-voltage powertrains and safety-critical motor drives, and the dual differential Hall-sensing architecture offers excellent immunity to stray magnetic fields and a fast 400kHz bandwidth. Melexis MLX91224 and MLX91225 Current Sensor ICs are suitable for electric drives, solar, power supplies, data-mining power distribution units (PDUs), and demand/load control applications.
Features
- Factory-trimmed AC and DC current sensor
- Robust against external magnetic fields
- Analog output voltage
- Bipolar or unipolar sensing
- Ratiometric or fixed output
- Combining sensing element, signal conditioning, and isolation in SOIC package
- No magnetic hysteresis
- Overcurrent detection (OCD) with option for dual OCD threshold
Applications
- AC and DC chargers
- Electric drives
- DC-DC converters
- Solar
- Data-mining PDUs
- Power supplies
- Demand/load control
Specifications
- Supply voltages
- 5V (MLX91224)
- 3.3V (MLX91225)
- High-speed sensing
- 400kHz bandwidth
- 2μs response time
- ASIL B Safety Element out of Context (SEooC) according to ISO26262
- AEC-Q100 compliant
- Multiple RoHS-compliant packages
- DE (SOIC6FL) up to 50ARMS
- DG (SOIC16W) up to 50ARMS with extended creepage/clearance
- DH (SOIC12W FL) up to 100ARMS high power and surge protection
- -40°C to +150°C operating temperature range