S-8253C

S-8253C/D Series www.sii-ic.com © Seiko Instruments Inc., 2008-2010 BATTERY PROTECTION IC FOR 2-SERIES OR 3-SERIES-CELL PACK Rev.2.0_00 The S-8253C/D Series is a protection ICs for 2-series or 3-series cell lithium-ion rechargeable battery and includes highaccuracy voltage detector and delay circuit. This IC is suitable for protecting lithium-ion battery packs from overcharge, overdischarge and overcurrent. „ Features (1) High-accuracy voltage detection for each cell Overcharge detection voltage n (n = 1 to 3) Overcharge release voltage n (n = 1 to 3) 3.9 V to 4.4 V (50 mV step) 3.8 V to 4.4 V *1 Accuracy ±25 mV Accuracy ±50 mV Overdischarge detection voltage n (n = 1 to 3) Overdischarge release voltage n (n = 1 to 3) 2.0 V to 3.0 V (100 mV step) 2.0 V to 3.4 V *2 Accuracy ±80 mV Accuracy ±100 mV (2) Three-level overcurrent detection (Including load short circuiting detection) Overcurrent detection voltage 1 0.05 V to 0.30 V (50 mV step) Accuracy ±25 mV Overcurrent detection voltage 2 0.5 V (Fixed) Overcurrent detection voltage 3 1.2 V (Fixed) (3) Delay time (Overcharge, Overdischarge, Overcurrent) is available by only using an internal circuit. (External capacitors are unnecessary). (4) Charge / discharge operation can be inhibited by the control pin. (5) 0 V battery charge function available / unavailable are selectable. (6) High-voltage withstand devices Absolute maximum rating 26 V (7) Wide range of operating voltage 2 V to 24 V (8) W...