ABLIC S-8243BAEFT-TB-G

The S-8243A/B Series is a protection IC for lithium-ion rechargeable battery. The S-8243A Series protects 3-series, the S-8243B Series protects 4-series cell pack from the overcharge, overdischarge, overcurrent voltages. This IC has a high-accuracy battery protection circuit and a battery monitor amplifier, and also a voltage regulator which operates the microcomputer or gas gauge IC. Combining this IC and a microcomputer or a gas gauge IC allows to display the amount of charge remained in a battery.

• High-accuracy voltage detection for each cell
  • Overcharge detection voltage n (n = 1 to 4): 3.9 V to 4.4 V (50 mV step), Accuracy ±25 mV
  • Overcharge hysteresis voltage n (n = 1 to 4) of overcharge detection: -0.10 V to -0.40 V (50 mV step) or 0 V, Accuracy ±50 mV
  • Overdischarge detection voltage n (n = 1 to 4): 2.0 V to 3.0 V (100 mV step), Accuracy ±80 mV
  • Overdischarge hysteresis voltage n (n = 1 to 4) of overdischarge detection: 0.15 V to 0.70 V or 0 V (50 mV step), Accuracy ±100 mV
• Three-level overcurrent protection including protection for short-circuiting
  • Overcurrent detection voltage 1: 0.05 V to 0.3 V (50 mV step), Accuracy ±25 mV
  • Overcurrent detection voltage 2: 0.5 V, Accuracy ±100 mV
  • Overcurrent detection voltage 3: VDD / 2, Accuracy ±15%
• Delay times for overcharge detection, overdischarge detection and overcurrent detection 1 can be set by external capacitors. (Delay times for overcurrent detection 2 and 3 are fixed internally.)
• Charge/discharge operation can be controlled through the control pins.

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