ALD910028SALI

Special Purpose Overview

The ALD910028SALI is a dual-channel Supercapacitor Auto Balancing (SAB™) MOSFET array manufactured by Advanced Linear Devices Inc. It operates within an industrial temperature range of -40°C to +85°C and utilizes an 8-pin SOIC package with lead-free construction. The device features a typical gate threshold voltage of 2.80V at 1µA drain-source current, with a maximum Drain-Source breakdown voltage of 10.6V and a maximum operating current of 80mA.

Special Purpose Feature Summary

• Precision factory-trimmed gate threshold voltage for accurate leakage-current balancing
• Exponential output current response to input voltage variations
• Near-zero additional leakage currents below rated voltages
• 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 specific suffix 'L' indicates lead-free compliance and 'I' confirms the extended industrial temperature range (-40°C to +85°C). Confirm the 8-pin SOIC physical footprint matches the target PCB layout. Ensure static control procedures are implemented during handling due to ESD sensitivity.

Special Purpose Selection Notes

Select this component when balancing two series-connected supercapacitors requiring precise voltage regulation. The dual-channel architecture simplifies circuit design compared to discrete solutions. Verify that the required maximum operating current does not exceed the 80mA limit and that the application environment falls within the specified industrial temperature range.

Special Purpose Part Context

This part belongs to the ALD9100xx family of SAB™ MOSFETs designed for automatic supercapacitor balancing. It shares core technology with the quad-channel ALD810028 but provides two independent channels in a compact 8-pin package. The devices utilize production-proven eEPAD® technology to address voltage and leakage-current balancing issues in series-connected capacitor stacks.

Special Purpose Replacement Considerations

ALD910028SAL serves as the commercial grade equivalent with a restricted 0°C to +70°C operating range.