Advanced Linear Devices ALD8100xx/ALD9100xx Quad/Dual SAB™ MOSFET Arrays

Advanced Linear Devices ALD8100xx/ALD9100xx Quad/Dual SAB™ MOSFET Arrays are built with production-proven EPAD® technology. The ALD8100xx/ALD9100xx Supercapacitor Auto Balancing (SAB) addresses voltage and leakage-current balancing of supercapacitors connected in series. Supercapacitors, also known as ultracapacitors or super caps, connected in series can be leakage-current balanced by using a combination of one or more devices connected across each supercapacitor stack to prevent over-voltages.


  • Simple and economical to use
  • Precision factory trimmed
  • Automatically regulates and balances leakage currents
  • Effective for supercapacitor charge-balancing
  • Balances up to 4 supercaps with a single IC package
  • Balances 2-cell, 3-cell, 4-cell series-connected supercaps
  • Scalable to larger supercap stacks and arrays
  • Near zero additional leakage currents
  • Zero leakage at 0.3V below rated voltages
  • Balances series and/or parallel-connected supercaps
  • Leakage currents are exponential function of cell voltages
  • Active current ranges from <0.3nA to >1000μA
  • Always active, always fast response time
  • Minimizes leakage currents and power dissipation


  • Series-connected supercapacitor cell leakage balancing
  • Energy harvesting
  • Long term backup battery with supercapacitor outputs
  • Zero-power voltage divider at selected voltages
  • Matched current mirrors and current sources
  • Zero-power mode maximum voltage limiter
  • Scaled supercapacitor stacks and arrays
Publicado: 2015-05-27 | Actualizado: 2023-02-13