ISL9217 - Renesas

ISL9217 8 to 12 Cell Li-Ion Battery Overcurrent Protection and Analog Front End Chip Set

DATASHEET ISL9216, ISL9217 8 to 12 Cell Li-Ion Battery Overcurrent Protection and Analog Front End Chip Set FN6488 Rev 1.00 November 2, 2007 The ISL9216 and ISL9217 chipset provides overcurrent protection and voltage monitoring for multi-cell li-ion battery packs consisting of 8 to 12 cells. When used together, these devices provide integrated overcurrent.

Features

• Software selectable overcurrent protection levels and variable protect detection/release times - 4 Discharge overcurrent thresholds - 4 Short circuit thresholds - 4 Charge overcurrent thresholds - 8 Overcurrent delay times (Charge) - 8 Overcurrent delay times (Discharge) - 2 Short circuit delay times (Discharge)
• Automatic FET turn-off and cell balance disable on reaching external (battery) or internal (IC) temperature limit
• Automatic over-ride of cell balance on reaching internal (IC) temperature limit
• Fast short circuit pack shutdown
• Can use current sense resistor, FET rDS(ON), or S.