ALD810025SCL

Overview

The ALD810025SCL is a quad N-channel 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 2.50V at an output current of 1µA, with a maximum drain-source breakdown voltage of 10.6V and an operating current limit of 80mA. It operates within a commercial temperature range of 0°C to +70°C and is housed in a 16-pin SOIC package.

Feature Summary

• Precision factory-trimmed gate threshold voltage for accurate balancing
• Automatically regulates leakage currents across series-connected supercapacitors
• Exponential resistance variation based on cell voltage
• Near-zero additional leakage currents below rated voltages

Applications

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

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm the correct operating temperature range and lead-free status. Ensure the component matches the required quad configuration for your application. Cross-reference datasheet specifications with procurement requirements to validate technical compliance before purchase.

Selection Notes

Select this component when balancing up to four supercapacitors in series is required. The 2.50V threshold voltage defines the maximum operating voltage for optimal balancing performance. Verify that the stack voltage does not exceed the 10.6V breakdown rating. Consider the 16-pin SOIC package dimensions for PCB layout constraints.

Part Context

This part belongs to the ALD8100xx family of SAB MOSFETs designed for automatic supercapacitor balancing. It complements the dual-channel ALD9100xx series. Both families utilize production-proven EPAD technology to address voltage and leakage-current balancing issues in series-connected capacitor stacks without external control circuitry.

Replacement Considerations

The ALD810025SCLI serves as the industrial temperature variant (-40°C to +85°C). No other direct substitutes are documented in the provided source material.