0-100 A isolated integrated Hall current sensors

Engineering samples available in limited quantities

The MLX91224 (5 V supply) and MLX91225 (3.3 V supply) form a versatile, plug-and-play isolated current sensing platform engineered for demanding automotive electrification and industrial power systems.

By integrating the low-impedance primary conductor, Hall sensing elements, signal conditioning, and galvanic isolation into a standard SOIC footprint, the devices eliminate Ohmic loss issues, bulky external magnetic cores, and complex end-of-line calibration.

Developed as an ISO 26262 ASIL B Safety Element out of Context (SEooC), this platform significantly simplifies functional safety integration in high-voltage powertrains and safety-critical motor drives. The dual differential Hall sensing architecture provides exceptional stray magnetic field immunity, a fast 400 kHz bandwidth, and a 2 µs response time.

DE Package (SOIC6FL - Up to 50 A_RMS)
The DE package is a ultra-compact SOIC6FL format optimized for space-constrained and cost-efficient designs. It supports continuous primary current measurements up to 50 A_RMS with an integrated lead frame resistance of just 0.6 mΩ. The package delivers basic isolation up to 840 V_RMS (420 V_RMS reinforced) and includes internal overcurrent detection (OCD).

DG Package (SOIC16W - Up to 50 A_RMS with Extended Creepage/Clearance)
The DG package comes in a standard SOIC16W wide-body footprint designed for elevated isolation requirements. Supporting continuous currents up to 50 A_RMS with 0.7 mΩ lead frame resistance, its 8 mm creepage and clearance distances enable higher working voltages up to 1600 V_RMS (basic) and 800 V_RMS (reinforced). The DG variant provides dual OCD capability, allowing external threshold adjustments via the dedicated OCD-TH pin.

DH Package (SOIC12W FL - Up to 100 A_RMS High Power & Surge Protection)
The DH package is a high-power SOIC12W FL format that extends the platform's continuous current measurement capability up to 100 A_RMS. Featuring an ultra-low lead frame resistance of 0.21 mΩ and working voltage isolation up to 1640 V_RMS, it delivers industry-leading surge current robustness up to ±29 kA (IEC 61000-4-5 / IEC 61643). It also features dual OCD monitoring with flexible internal or external threshold settings.

Programming & Engineering Evaluation
The MLX91224 and MLX91225 are fully factory-trimmed plug-and-play ICs requiring no end-of-line programming.

Application Examples

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