ALD810016SCL

Overview

The ALD810016SCL is a quad Supercapacitor Auto Balancing (SAB) MOSFET array manufactured by Advanced Linear Devices Inc. It utilizes EPAD technology to balance voltage and leakage current in series-connected supercapacitors, preventing over-voltages. The device features four precision N-channel MOSFETs with unique operating characteristics. Key electrical parameters include a Drain-Source Breakdown Voltage of 10.6V, an Operating Current limit of 80mA, and a Gate Threshold Voltage of 1.60V at 1µA. 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 voltages 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

Applications

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

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 package type and pin configuration for the intended circuit design. Cross-reference the datasheet version to confirm all electrical specifications align with the production batch requirements.

Selection Notes

Select this component when balancing up to four supercapacitors in series is required. Consider the specific operating voltage margin and temperature effects on the gate threshold voltage. Verify that the maximum supercapacitor leakage current limits are met before deployment. Evaluate the exponential current response characteristics against the desired balancing sensitivity.

Part Context

This part belongs to the ALD8100xx family of SAB MOSFET arrays designed for supercapacitor balancing. It shares core technology with the dual-channel ALD910016 variant but provides four independent balancing channels. The device addresses voltage and leakage-current balancing challenges in series-connected capacitor stacks using production-proven EPAD technology.

Replacement Considerations

ALD810016SCLI serves as the industrial temperature grade replacement for the commercial grade ALD810016SCL.

FAQ

How does the ALD810016SCL achieve automatic balancing?

It uses precision gate threshold voltages to create an effective variable resistor that varies exponentially with input voltage, automatically regulating leakage currents across connected supercapacitors.

What is the typical gate threshold voltage for this device?

The typical gate threshold voltage is 1.60V when measured at a drain-source current of 1µA with gate-drain source terminals connected together.

Can this device be used for parallel-connected supercapacitors?

Yes, the datasheet indicates it can balance series and/or parallel-connected supercapacitors.