ALD8100/ALD9100


ALD quad supercapacitor auto-balancing (SAB™) MOSFET array

The ALD8100 and ALD9100 family of Supercapacitor Auto Balancing-MOSFETs, or SAB™ MOSFETs, are EPAD® MOSFETs designed to address leakage balance of supercapacitors connected in series. Supercapacitors, also known as ultracapacitors or supercaps, when connected two in series, can be balanced with an ALD9100 dual package. Supercaps connected two, three, or four in series can be balanced with an ALD8100 quad package.

Features
  • 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, 3, and 4-cell series-connected supercaps
  • Scalable to larger supercap stacks and arrays
  • Near-zero additional leakage currents
  • Zero leakage at 0.3 V below rated voltages
  • Balances with series-connect and parallel-connect
  • Leakage currents are exponential function of cell voltages
  • Active current ranges from < 0.3 nA to > 1000 μA
  • Always active, always fast response time
  • Minimizes leakage currents and power dissipation


Applications
  • Series-connected supercapacitor cell-leakage balancing
  • Energy harvesting
  • Zero-power voltage divider at selected voltages
  • Matched current mirrors and current sources
  • Zero-power mode maximum voltage limiter
  • Scaled supercapacitor stacks and arrays

Quad Supercap Auto Balancing (SAB™) MOSFET Array

Manufacturer Part Number Description Available Quantity Datasheets
ALD810023SCL MOSFET QUAD SAB 2.3V 16SOIC 45
ALD810024SCL MOSFET QUAD SAB 2.4V 16SOIC 36
ALD810025SCL MOSFET QUAD SAB 2.5V 16SOIC 61
ALD810026SCL MOSFET QUAD SAB 2.6V 16SOIC 40
ALD810027SCL MOSFET QUAD SAB 2.7V 16SOIC 20

Dual Supercap Auto Balancing (SAB™) MOSFET Array

Manufacturer Part Number Description Available Quantity Datasheets
ALD910023SAL MOSFET DUAL SAB 2.3V 8SOIC 50
ALD910024SAL MOSFET DUAL SAB 2.4V 8SOIC 36
ALD910025SAL MOSFET DUAL SAB 2.5V 8SOIC 40
ALD910026SAL MOSFET DUAL SAB 2.6V 8SOIC 30
ALD910027SAL MOSFET DUAL SAB 2.7V 8SOIC 45