ABLIC S-8254AAVFT-TB-S

The S-8254A series is a protection IC for 3-serial- or 4-serial-cell lithium-ion / lithium polymer rechargeable batteries and includes a high-accuracy voltage detector and delay circuit. The S-8254A series protects both 3-serial or 4-serial cells using the SEL pin for switching.

• High-accuracy voltage detection for each cell
  • Overcharge detection voltage n (n = 1 to 4): 3.9 V to 4.4 V (50 mV steps), Accuracy ±25 mV
  • Overcharge release voltage n (n = 1 to 4): 3.8 V to 4.4 V, Accuracy ±50 mV
  • Overdischarge detection voltage n (n = 1 to 4): 2.0 V to 3.0 V (100 mV steps), Accuracy ±80 mV
  • Overdischarge release voltage n (n = 1 to 4): 2.0 V to 3.4 V, Accuracy ±100 mV
• Three-level overcurrent protection
  • Overcurrent detection voltage 1: 0.05 V to 0.30 V (50 mV steps), Accuracy ±25 mV
  • Overcurrent detection voltage 2: 0.5 V, Accuracy ±100 mV
  • Overcurrent detection voltage 3: VVC1 - 1.2 V, Accuracy ±300 mV
• 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).
• Switchable between a 3-serial cell and 4-serial cell using the SEL pin
• Charge/discharge operation can be controlled via the control pins.
• High-withstand voltage device, Absolute maximum rating: 26 V
• Wide operating voltage range: 2 V to 24 V
• Wide operating temperature range: -40°C to +85°C
• Low current consumption
  • Operation mode: 30 μA max. (+25°C)
  • Power-down mode: 0.1 μA max. (+25°C)
• Lead-free, Sn100%, halogen-free

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