ALD910027SALI

Special Purpose Overview

The ALD910027SALI is a dual Supercapacitor Auto Balancing (SAB) MOSFET array manufactured by Advanced Linear Devices. 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 precision gate threshold voltage of 2.70V at 1µA drain-source current, enabling exponential control of leakage currents across series-connected supercapacitors. Maximum ratings include a 15.0V supply voltage, 10.6V drain-source breakdown voltage, and 80mA operating current.

Special Purpose Feature Summary

• Precision factory-trimmed gate threshold voltage for accurate balancing
• Exponential output current response to input voltage changes
• 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 ordering suffix 'I' confirms the industrial temperature range (-40°C to +85°C). Confirm the 'L' suffix indicates lead-free compliance. Ensure the 8-pin SOIC package matches the design requirements. Cross-reference the datasheet version for any updates to electrical characteristics or pin configurations before finalizing procurement.

Special Purpose Selection Notes

Select this component when balancing two series-connected supercapacitors is required. The dual-channel architecture simplifies circuit design compared to discrete solutions. Consider the exponential current-voltage relationship for precise voltage limiting. Verify that the maximum operating current and power dissipation limits accommodate the specific supercapacitor stack leakage characteristics.

Special Purpose Part Context

This part belongs to the ALD9100xx family of SAB MOSFET arrays, designed specifically for managing voltage distribution in series-connected energy storage devices. It complements the quad-channel ALD810027 variant. The technology relies on production-proven EPAD manufacturing processes to ensure reliability and precision in analog applications requiring automatic balancing without external control logic.

Special Purpose Replacement Considerations

ALD910027SAL serves as the commercial temperature grade equivalent.