The ISL95520 is a highly versatile combo battery charger configurable for operating as either a Hybrid Power Boost (HPB) charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or 4-cell batteries. Both configurations allow the battery to work with the adapter together to supply the system load when it exceeds the adapter capability, referred to as system Turbo mode. The HPB charger configuration reverse-boosts battery energy to the system bus to help the adapter provide system power in Turbo mode. The NVDC charger configuration quickly turns on BGATE to enable the battery to help the adapter provide system power in Turbo mode. The ISL95520 uses N-channel MOSFETs (NFETs) for all the switches to achieve the best performance and lowest BOM cost. The internal charge pump is capable of turning on all the NFETs fast or slow depending on the circumstance or the need. The ability to quickly turn on NFETs prevents system bus voltage drop when the battery is suddenly removed in Turbo mode or in battery learn mode. The ISL95520 provides many protection features including a PROCHOT# indicator for system low voltage, adapter over-current, battery overcurrent, or overheating, with an array of SMBus programmable parameters for maximum flexibility. The ISL95520 also features a hardware-based adapter current limit and battery-current limit in addition to SMBus programmable limits. The ISL95520 provides a high accuracy adapter current monitor, battery current monitor, and system power monitor outputs. To provide maximum flexibility for working with high power and low power systems, the ISL95520 provides several configurable current-sense resistor value options to achieve the best trade-off of current sensing accuracy vs power loss. The ISL95520 uses the Renesas patented Robust Ripple Regulator (R3â„¢) modulation scheme to provide excellent light-load efficiency and fast dynamic response. The ISL95520 is available in a 32 Ld 4x4mm2 QFN package.
SL95520 Battery Charger With SMBus Interface Original IC
Available: 8 in stock
රු1,200.00
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