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Intersil ISL88731HRZ ISL88731 HRZ Battery Charger IC Chip
£3.98
Condition: New
SMBus Level 2 Battery Charger
  The ISL88731 is a highly integrated Lithium-ion battery charger controller, programmable over the SMBus system management bus (SMBus). The ISL88731 is in tended to be used in a smart battery charger (SBC) within a smart battery system (SBS) that throttles the charge power such that the current from the AC-adapter is automatically limited. High efficiency is achieved with a DC/DC synchronous-rectifier buck converter, equipped with diode emulation for enhanc ed light load efficiency and system bus boosting prevention. The ISL88731 charges one to four Lithium-ion series cells, and delivers up to 8A charge current. Integrated MOSFET driv ers and bootstrap diode result in fewer components and smaller implementation area. Low offset current-sense amplifiers provide high accuracy with 10m Ω sense resistors. The ISL88731 provides 0.5% end-of-charge battery voltage accuracy. The ISL88731 provides a digita l output that indicates the presence of the AC adapter as we ll as an analog output which indicates the adapter current within 4% accuracy. The ISL88731 is available in a small 5mmx5mm 28 Ld Thin (0.8mm) QFN package. An evaluation kit is available to reduce design time. The ISL88731 is available in Pb-Free packages
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