ALD810023SCL

Special Purpose Overview

The ALD810023SCL is a quad Supercapacitor Auto Balancing (SAB) MOSFET array manufactured by Advanced Linear Devices. It operates within a supply voltage range of 0V to +15.0V and features a precision gate threshold voltage of 2.30V at an output current of 1µA. The device provides four independent balancing channels, each capable of handling up to 80mA operating current with a maximum power dissipation of 500mW. It utilizes EPAD technology for thermal management and is housed in a 16-pin SOIC package.

Special Purpose Feature Summary

• Precision factory-trimmed gate threshold voltages ensure accurate leakage current regulation across series-connected supercapacitors.
• Exponential variable resistance characteristic automatically balances cell voltages without external control circuitry.
• Near-zero additional leakage currents minimize power dissipation when connected across supercapacitors below rated thresholds.

Special Purpose Applications

• Series-connected supercapacitor cell leakage balancing
• Energy harvesting systems requiring voltage equalization
• Long-term backup battery configurations with supercapacitor outputs

Special Purpose Procurement Notes

Verify the specific suffix 'SCL' corresponds to the commercial temperature range (0°C to +70°C). Confirm that the ordering information matches the required package type and environmental specifications for your application before finalizing procurement.

Special Purpose Selection Notes

Select this component for applications requiring automatic balancing of up to four series-connected supercapacitors. Ensure the maximum supercapacitor leakage current limit aligns with the device's output current capabilities and that the operating voltage margin accommodates tolerance and temperature effects.

Special Purpose Part Context

This part belongs to the ALD8100xx family of SAB MOSFET arrays designed for supercapacitor balancing. It complements the dual-channel ALD910023 variant, offering a scalable solution for larger supercapacitor stacks and arrays while maintaining precise voltage and current characteristics.

Special Purpose Replacement Considerations

The ALD810023SCLI serves as the industrial temperature range (-40°C to +85°C) equivalent. Verify pinout compatibility and electrical characteristics against alternative SAB MOSFET arrays if sourcing from different manufacturers.

Special Purpose FAQ

How does the ALD810023SCL regulate supercapacitor voltage?

It acts as a voltage-dependent variable resistor. As the input voltage increases above the 2.30V threshold, the output current increases exponentially, shunting excess charge to balance the cells.

What is the maximum drain-source voltage rating?

The absolute maximum Drain-Source voltage (VDS) is rated at 10.6V.

Does the device require external components for operation?

No, the SAB MOSFETs are designed to automatically regulate and balance leakage currents without external control circuitry when connected directly across the supercapacitors.