ALD810027SCL

Overview

The ALD810027SCL 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 2.70V at an output current of 1µA, with drain-source breakdown voltage rated at 10.6V and operating current up to 80mA. It operates within a 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
• Precision factory trimmed for accurate voltage and current characteristics
• Exponential variable resistance behavior based on input voltage levels
• Near zero additional leakage currents when below rated voltages

Applications

• Series-connected supercapacitor cell leakage balancing
• Energy harvesting systems
• Long term backup battery with supercapacitor outputs
• Zero-power voltage divider 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 component is lead-free and RoHS compliant as indicated by the standard product designation. Ensure the application environment remains within the specified operating limits to maintain performance integrity.

Selection Notes

Select this component for applications requiring automatic balancing of up to four series-connected supercapacitors. The device is suitable where precise factory trimming is necessary to minimize offset voltage. Consider the industrial variant if operation below 0°C is required. Verify that the maximum drain-source voltage does not exceed 10.6V.

Part Context

This part belongs to the ALD8100xx family of SAB MOSFET arrays designed for supercapacitor balancing. It is distinct from the dual-channel ALD910027 series. The SCL suffix identifies the 16-pin SOIC package configuration intended for commercial temperature ranges, differentiating it from the industrial SCLI version.

Replacement Considerations

The ALD810027SCLI serves as the direct industrial temperature range replacement for the SCL variant. Both share identical electrical characteristics but differ in operating temperature specifications.

FAQ

How does the ALD810027SCL handle supercapacitor over-voltage?

It acts as an effective variable resistor connected across each supercapacitor, dissipating excess energy exponentially as the input voltage increases above the threshold.

What is the typical gate threshold voltage for this device?

The typical gate threshold voltage is 2.70V when measured at a drain-source current of 1µA with gate-drain source terminals connected together.

Can this device be used for parallel supercapacitor configurations?

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