ALD910029SALI

Special Purpose Overview

The ALD910029SALI is a dual 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. The device features two independent SAB MOSFETs with a precision gate threshold voltage of 2.90V at an output current of 1µA. It operates within a supply voltage range up to 15.0V and supports drain-source voltages up to 10.6V. The component is housed in an 8-pin SOIC package and is rated for industrial operating temperatures from -40°C to +85°C.

Special Purpose Feature Summary

• Automatically regulates and balances leakage currents across series-connected supercapacitors
• Features precision factory-trimmed gate threshold voltage characteristics
• Provides near-zero additional leakage currents when below rated voltages
• Offers exponential variable resistance behavior based on input voltage

Special Purpose 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

Special Purpose Procurement Notes

Verify the specific ordering suffix 'L' indicates lead-free compliance per RoHS standards. Confirm the 'I' suffix corresponds to the industrial temperature range of -40°C to +85°C rather than the commercial range. Ensure the package type matches the required 8-pin SOIC footprint for your design.

Special Purpose Selection Notes

Select this component for applications requiring automatic balancing of two series-connected supercapacitors. The device is suitable where precise voltage limiting and minimal power dissipation are critical. Consider the unique operating electrical characteristics for each of its two devices when designing the balancing circuit.

Special Purpose Part Context

This part belongs to the ALD9100xx family of Dual Supercapacitor Auto Balancing MOSFETs. It shares the same core technology as the quad-channel ALD810029 but provides two balanced channels instead of four. The family is designed to address over-voltage protection in supercapacitor stacks without external control logic.

Special Purpose Replacement Considerations

ALD910029SAL is the commercial temperature variant (-40°C to +85°C is not applicable here, SAL is 0 to +70C). Verify if the temperature range difference impacts your application requirements before substitution.