ALD910024SALI

Special Purpose Overview

The ALD910024SALI is a dual-channel N-channel Supercapacitor Auto Balancing (SAB™) MOSFET array manufactured by Advanced Linear Devices Inc. It utilizes EPAD® technology to balance voltage and leakage current in series-connected supercapacitors, preventing over-voltages. The device features a precision gate threshold voltage of 2.40V at an output current of 1µA. Its effective resistance varies exponentially with input voltage, allowing automatic balancing without external components. It operates within a supply voltage range up to 15.0V and supports drain-source voltages up to 10.6V.

Special Purpose Feature Summary

• Precision factory-trimmed gate threshold voltage for accurate balancing
• Exponential variable resistance characteristic based on cell voltage
• Near-zero additional leakage currents below rated voltage thresholds
• Always active operation with fast response time

Special Purpose Applications

• Series-connected supercapacitor cell leakage balancing
• Energy harvesting systems
• Long-term backup battery configurations with supercapacitor outputs
• Zero-power voltage dividers at selected voltages

Special Purpose Procurement Notes

Verify the ordering suffix 'L' indicates lead-free RoHS compliance. Confirm the 'I' suffix corresponds to the industrial temperature range of -40°C to +85°C. Ensure the 8-SOIC package matches the design requirements. Cross-reference the specific part number against the manufacturer's latest datasheet version to confirm availability and specifications.

Special Purpose Selection Notes

Select this component for applications requiring automatic balancing of two series-connected supercapacitors. The 2.40V threshold voltage determines the maximum operating voltage per cell. Verify that the required output current range aligns with the exponential I-V characteristics provided in the datasheet. Consider the 8-pin SOIC package dimensions for PCB layout constraints.

Special Purpose Part Context

This device belongs to the ALD9100xx family of SAB™ MOSFET arrays, designed specifically for supercapacitor management. It complements the quad-channel ALD810024 variant. The family addresses the need for precise voltage balancing in high-capacitance energy storage stacks used in industrial and automotive applications.

Special Purpose Replacement Considerations

ALD910024SAL is the commercial temperature grade equivalent (-40°C to +85°C is not applicable here, SAL is 0 to +70C). Check datasheet for exact thermal specs.