ALD910028SAL

Special Purpose Overview

The ALD910028SAL is a dual-channel N-channel 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 a precision gate threshold voltage of 2.80V at an output current of 1µA. It operates within a supply voltage range up to 15.0V and supports a maximum operating current of 80mA. The component is housed in an 8-SOIC package with a commercial temperature rating of 0°C to +70°C.

Special Purpose Feature Summary

• Precision factory-trimmed gate threshold voltage for accurate balancing
• Exponential variable resistance characteristic based on input voltage
• Near-zero additional leakage currents below rated voltages
• Always active operation with fast response time

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 ordering suffix against manufacturer documentation to confirm the correct operating temperature range. The 'L' suffix indicates lead-free compliance. Ensure the selected variant matches the required environmental conditions for the intended application design.

Special Purpose Selection Notes

Select this component for applications requiring automatic balancing of two series-connected supercapacitors. The device provides precise control over leakage currents through its exponential resistance characteristic. Consider the 8-SOIC package dimensions and the commercial temperature range when designing the PCB layout and thermal management strategy.

Special Purpose Part Context

This part belongs to the ALD9100xx family of SAB™ MOSFETs, designed specifically for supercapacitor balancing. It complements the quad-channel ALD8100xx series. The technology addresses voltage and leakage-current balancing challenges in series-connected capacitor stacks using production-proven EPAD® technology.

Special Purpose Replacement Considerations

No public confirmed substitute part numbers are available.