ABLIC S-8244AAFFM-CEFT2U

The S-8244 Series is used for secondary protection of lithium-ion batteries with from one to four cells, and incorporates a high-precision voltage detector circuit and a delay circuit. Short-circuiting between cells makes it possible for serial connection of one to four cells.

• Internal high-precision voltage detector circuit
  • Overcharge detection voltage range: 3.700 V to 4.550 V
  • Accuracy of ± 25 mV (at +25°C) (at a 5 mV/step)
  • Accuracy of ± 50 mV (at -40°C to +85°C)
  • Hysteresis: 5 types 0.38±0.1 V, 0.25±0.07 V, 0.13±0.04 V, 0.045±0.02 V, None
• High-withstand voltage: Absolute maximum rating: 26 V
• Wide operating voltage range: 3.6 V to 24 V (refers to the range in which the delay circuit can operate normally after overvoltage is detected)
• Delay time during detection: Can be set by an external capacitor.
• Low current consumption:
  • At 3.5 V for each cell: 3.0 μA max. (+25°C)
  • At 2.3 V for each cell: 2.4 μA max. (+25°C)
• Output logic and form: 5 types
  • CMOS output active “H”
  • CMOS output active “L”
  • Pch open drain output active “L”
  • Nch open drain output active “H”
  • Nch open drain output active “L” (CMOS / Nch open drain output for 0.045 V hysteresis models)
• Lead-free, halogen-free

• Lithium ion rechargeable battery packs (secondary protection)