ALD810024SCL

Special Purpose Overview

The ALD810024SCL is a quad Supercapacitor Auto Balancing (SAB) MOSFET array manufactured by Advanced Linear Devices. It utilizes EPAD technology to balance up to four series-connected supercapacitors. The device features a precision gate threshold voltage of 2.40V at an output current of 1µA, with drain-source breakdown voltage rated at 10.6V and continuous operating current up to 80mA. Power dissipation is limited to 500mW within the commercial temperature range of 0°C to +70°C.

Special Purpose Feature Summary

• Automatically regulates and balances leakage currents across series-connected supercapacitors
• Precision factory trimmed gate threshold voltage for accurate voltage limiting
• Exponential output current response to input voltage changes
• Near zero additional leakage currents below rated voltages

Special Purpose Applications

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

Special Purpose Procurement Notes

Verify the specific suffix 'L' indicates lead-free RoHS compliance when ordering. Confirm the package type matches the required pin count for your design. Ensure the operating environment stays within the specified commercial temperature range for this variant. Cross-reference the datasheet version for any updates to electrical characteristics before finalizing the bill of materials.

Special Purpose Selection Notes

Select the ALD810024SCL when balancing four supercapacitors in series. Choose the industrial grade SCLI suffix if operation below 0°C is required. Verify that the maximum supercapacitor leakage current limit aligns with the device's output current capabilities. Ensure the stack voltage does not exceed the absolute maximum ratings.

Special Purpose Part Context

This component belongs to the ALD8100xx family of SAB MOSFET arrays designed for supercapacitor balancing. It shares core EPAD technology with other variants like the ALD810019SCL but offers distinct threshold voltage specifications. The quad configuration allows managing multiple cells within a single integrated circuit package.

Special Purpose Replacement Considerations

ALD810023SCL

Special Purpose FAQ

How does the ALD810024SCL handle voltage imbalance?

It acts as a variable resistor where the resistance decreases exponentially as the voltage across the supercapacitor increases, shunting excess current to balance the stack.

What is the typical gate threshold voltage?

The typical gate threshold voltage is 2.40V when measured at an output current of 1µA with VGS equal to VDS.

Can this device be used for parallel supercapacitors?

Yes, the documentation states it can balance series and/or parallel-connected supercapacitors.