ALD810016SCLI

Overview

The ALD810016SCLI is a quad Supercapacitor Auto Balancing (SAB) MOSFET array manufactured by Advanced Linear Devices. It operates within an extended temperature range of -40°C to +85°C and utilizes a 16-pin SOIC package. The device features a Drain-Source Breakdown Voltage (BVDSX) of 10.6V, with a maximum operating current of 80mA and power dissipation of 500mW. It provides four independent channels for balancing series-connected supercapacitors.

Feature Summary

• Precision factory-trimmed gate threshold voltage for accurate leakage-current balancing
• Exponential output current response to input voltage changes for effective charge regulation
• Near-zero additional leakage currents when connected across supercapacitor stacks
• Integrated ePAD technology for enhanced thermal performance

Applications

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

Procurement Notes

Verify the specific ordering suffix 'I' confirms the industrial temperature rating (-40°C to +85°C). Confirm the 'CL' designation corresponds to the 16-pin SOIC package variant. Ensure compliance with RoHS lead-free standards as indicated by the 'L' suffix in the part number structure.

Selection Notes

Select this component for applications requiring precise balancing of up to four series-connected supercapacitors. The industrial temperature grade makes it suitable for harsh environments. Consider the exponential current-voltage characteristic for automatic balancing without external control circuitry.

Part Context

This device belongs to the SAB MOSFET family designed specifically for supercapacitor voltage and leakage-current balancing. It addresses over-voltage risks in series-connected capacitor stacks by automatically regulating current flow based on individual cell voltages.

Replacement Considerations

ALD810016SCL (Commercial temperature range)

FAQ

How does the ALD810016SCLI balance supercapacitor voltages?

It acts as a variable resistor connected across each supercapacitor. Its resistance decreases exponentially as the voltage across the capacitor increases, shunting excess current to prevent over-voltage.

What is the typical gate threshold voltage for this device?

The typical gate threshold voltage (Vt) is 1.60V when measured at a drain-source current of 1µA with VGS = VDS.

Can this device be used for parallel-connected supercapacitors?

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