Power Management ICs

Battery Protection IC with Cell-Balance Function S-8209A Series

The S-8209A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes a high-accuracy voltage detection circuit and a delay circuit. This IC has a transmission function and two types of cell-balance function so that users are also able to configure a protection circuit with series multi-cell.

*Application Note: S-8209A Series Usage Guidelines

Features

High-accuracy voltage detection circuit
Overcharge detection voltage 3.9 V to 4.4 V (5 mV step) Accuracy ±25 mV
Overcharge release voltage 3.8 V to 4.4 V*1 Accuracy ±50 mV
Cell-balance detection voltage 3.9 V to 4.4 V (5 mV step)*2 Accuracy ±25 mV
Cell-balance release voltage 3.8 V to 4.4 V*3 Accuracy ±50 mV
Overdischarge detection voltage 2.0 V to 3.0 V (10 mV step) Accuracy ±50 mV
Overdischarge detection voltage 2.0 V to 3.4 V*4 Accuracy ±100 mV
Settable delay time by external capacitor for output pin
Control charging, discharging, cell-balance by CTLC, CTLD pins
Two types of cell-balance function; charge/discharge
Wide range of operation temperature
−40°C to +85°C
Low current consumption
7.0 µA max.
Lead-free product

*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.)
*2. Overcharge detection voltage > Cell-balance detection voltage
(Overcharge detection voltage is always set higher than Cell-balance detection voltage)
*3. Cell-balance release voltage = Cell-balance detection voltage − Cell-balance hysteresis voltage
(Cell-balance hysteresis voltage is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.)
*4. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage is selectable in 0 V, in 0.1 V to 0.7 V in 100 mV step.)

Applications

  • Lithium-ion rechargeable battery packs
  • Lithium polymer rechargeable battery packs

Parts List

  • U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
    however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
  • Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.