ABLIC S-8224BAC-I8T1U

The S-8224A/B Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates high-accuracy voltage detection circuits and delay circuits. The S-8224B Series limits its CO pin output voltage to 11.5 V max., so a FET with the gate withstand voltage of 12 V can be used.

• High-accuracy voltage detection circuit for each cell
  • Overcharge detection voltage (n = 1 to 4): 3.600 V to 4.700 V (50 mV step)
    • Accuracy ±20 mV (Ta = +25°C)
    • Accuracy ±25 mV (Ta = -10°C to +60°C)
  • Overcharge hysteresis voltage (n = 1 to 4):
    • 0.0 mV to -550 mV (50 mV step)
      • -300 mV to -550 mV, Accuracy ±20%
      • -100 mV to -250 mV, Accuracy ±50 mV
      • -50 mV, Accuracy ±25 mV
      • 0.0 mV, Accuracy -25 mV to +20 mV
• Delay times for overcharge detection are generated only by an internal circuit (external capacitors are unnecessary)
  • Overcharge detection delay time is selectable: 1 s, 2 s, 4 s, 6 s, 8 s
  • Overcharge release delay time is selectable: 2 ms, 64 ms
• Overcharge timer reset function: Available, unavailable
• Output control function via CTL pin
• Output form is selectable (S-8224A Series): CMOS output, Nch open-drain output
• Output logic is selectable (S-8224A Series): Active "H", active "L"
• CO pin output voltage is limited to 11.5 V max. (S-8224B Series)
• High-withstand voltage: Absolute maximum rating 28 V
• Wide operation voltage range: 3.6 V to 28 V
• Wide operation temperature range: Ta = -40°C to +85°C
• Low current consumption
  • During operation (Vc - 1.0 V for each cell): 0.25 μA typ., 0.6 μA max. (Ta = +25°C)
  • During overdischarge (Vc × 0.5 V for each cell): 0.3 μA max. (Ta = +25°C)
• Lead-free (Sn 100%), halogen-free

• Lithium-ion rechargeable battery packs (for secondary protection)