ALD810022SCL

Overview

The ALD810022SCL 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 2.20V at an output current of 1µA. Its effective resistance varies exponentially with input voltage, automatically regulating leakage currents to prevent over-voltages. The component operates within a commercial temperature range of 0°C to +70°C and is housed in a 16-pin SOIC package.

Feature Summary

• Automatically regulates and balances leakage currents across series-connected supercapacitors
• Features precision factory-trimmed operating voltage and current characteristics
• Provides near-zero additional leakage currents when connected across supercapacitor stacks
• Offers fast response time with active balancing capabilities

Applications

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

Procurement Notes

Verify the specific ordering suffix 'SCL' corresponds to the commercial temperature range (0°C to +70°C). Confirm that the 16-pin SOIC package matches the design requirements. Ensure compatibility with the intended supercapacitor stack voltage limits and check for lead-free (RoHS) compliance as indicated by standard manufacturing practices for this part number.

Selection Notes

Select the ALD810022SCL when balancing applications require handling up to four series-connected supercapacitors. This quad configuration is distinct from the dual-channel ALD910022 variant. Consider the exponential resistance characteristic for precise voltage limiting. Verify that the maximum drain-source breakdown voltage of 10.6V aligns with the individual supercapacitor ratings in the stack.

Part Context

This component belongs to the ALD8100xx family of SAB MOSFET arrays designed for supercapacitor balancing. It is part of Advanced Linear Devices' portfolio utilizing EPAD technology for low-power analog circuits. The quad configuration allows for compact integration in multi-cell energy storage systems compared to discrete resistor solutions.

Replacement Considerations

The ALD810022SCLI serves as the industrial temperature grade replacement for the SCL variant. Both share identical electrical characteristics but differ in operating temperature ranges.