DATASHEET To request the full datasheet, please visit the ISL95522 product page. ISL95522 FN8967 Rev.2.00 Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger Jul 9, 2019 with SMBus Interface The ISL95522 is a highly versatile combination battery Features charger configurable for operating as either a Hybrid Configurable as an HPB charger or NVDC charger Power Boost (HPB) charger or a Narrow VDC (NVDC) Compliant with Intel PROCHOT and PSYS charger, supporting 2-, 3-, or 4-cell batteries. Both requirements configurations allow the battery to work with the adapter to supply the system load when it exceeds the adapter Adapter current monitor and battery discharging capability, referred to as system Turbo mode. The HPB current monitor charger configuration reverse-boosts battery energy to Uses NFET for all the switches the system bus to help the adapter provide the system power in Turbo mode. The NVDC charger configuration Supports battery removal during Battery Learn quickly turns on BGATE, which enables the battery to mode help the adapter provide the system power in Turbo Actively controlled inrush current to prevent FET mode. damage The ISL95522 uses N-channel MOSFETs (NFETs) for SMBus programmable settings and high accuracy all the switches to achieve the best performance and Comprehensive protection features include: lowest BOM cost. The internal charge pump can turn on all the NFETs quickly or slowly, depending on the PROCHOT indicator for system low voltage, circumstance or need. The ability to quickly turn on adapter overcurrent, battery overcurrent, or NFETs prevents system bus voltage drop when the system overheating battery is suddenly removed in Turbo mode or in Battery Hardware-based adapter current and battery Learn mode. current limits The ISL95522 provides many protection features, Supports sudden battery removal in system Turbo including a PROCHOT indicator for system low mode voltage, adapter overcurrent, battery overcurrent, or overheating, with an array of SMBus programmable 16 switching frequency options from 350kHz to 1MHz parameters for maximum flexibility. It also features a Low quiescent current hardware-based adapter-current limit and battery-current 2 SMBus and auto-increment I C compatible limit in addition to SMBus programmable limits. Renesas Robust Ripple Regulator (R3) modulation The ISL95522 provides a high accuracy adapter current scheme provides excellent light-load efficiency and monitor, battery current monitor, and system power fast dynamic response monitor outputs. To provide maximum flexibility for working with high and low power systems, it provides 2 32 Ld 4x4mm QFN package several configurable current-sense resistor value options Pb-free (RoHS compliant) to achieve the best trade-off of current sensing accuracy vs power loss. Applications The ISL95522 uses the Renesas Robust Ripple Regulator Devices with rechargeable 2-, 3-, or 4-cell batteries (R3) modulation scheme to provide excellent Related Literature light-load efficiency and fast dynamic response. The 2 ISL95522 is available in a 32 Ld 4x4mm QFN package. For a full list of related documents, visit our website ISL95522 device page FN8967 Rev.2.00 Page 1 of 3 Jul 9, 2019ISL95522 AFET SFET VADP VSYS Adapter System BFET ASGATE CMSRC Q 1 UGATE L VBAT PHASE HPB Charger Q 2 LGATE PROG BGATE VBAT Figure 1. HPB Charger Configuration AFET SFET VADP VSYS Adapter System ASGATE CMSRC Q 1 UGATE L BFET VBAT PHASE NVDC Charger Q 2 LGATE PROG BGATE VBAT Figure 2. NVDC Charger Configuration FN8967 Rev.2.00 Page 2 of 3 Jul 9, 2019