ALD810027SCLI

Special Purpose Overview

The ALD810027SCLI is a quad Supercapacitor Auto Balancing (SAB) MOSFET array manufactured by Advanced Linear Devices. It utilizes EPAD technology to automatically regulate and balance leakage currents in series-connected supercapacitors, preventing over-voltages. The device features a precision gate threshold voltage of 2.70V at an output current of 1µA. Its effective resistance varies exponentially with the input voltage, allowing for precise balancing across up to four cells. The component operates within a temperature range of -40°C to +85°C and is housed in a 16-pin SOIC package.

Special Purpose Feature Summary

• Automatically regulates and balances leakage currents in series-connected supercapacitors
• Features precision factory-trimmed gate threshold voltage characteristics
• Provides near-zero additional leakage currents below rated voltages
• Offers fast response time with active operation across varying cell voltages

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 that the ordering suffix 'I' corresponds to the industrial temperature range (-40°C to +85°C) rather than the commercial range. Confirm the package type matches the required 16-pin SOIC configuration. Ensure ESD control procedures are followed during handling due to device sensitivity. Cross-reference the specific datasheet version to confirm electrical characteristics align with system requirements.

Special Purpose Selection Notes

Select this component when balancing up to four series-connected supercapacitors is required. The 2.70V threshold voltage determines the maximum operating voltage per cell for minimal power dissipation. Consider the exponential current-voltage relationship for precise balancing without external control circuitry. Verify that the maximum drain-source breakdown voltage meets the stack requirements.

Special Purpose Part Context

This part belongs to the ALD8100xx family of SAB MOSFET arrays designed for supercapacitor balancing. It is distinct from the dual-channel ALD9100xx series. The 'SCLI' suffix indicates the specific package and temperature rating. These devices are built using production-proven EPAD technology for high precision and low power consumption.

Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.