DATA SHORT To request the full datasheet, visit the ISL9238 product page. ISL9238 FN8877 Rev.9.00 Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG Jul 19, 2019 The ISL9238 is a buck-boost Narrow Output Voltage DC (NVDC) Features charger. The ISL9238 provides the NVDC charging, system bus Buck-boost NVDC charger for 1-, 2-, 3-, or 4-cell Li-ion batteries regulation and protection features for tablet, Ultrabook, notebook, power bank, and any USB-C interface platform. The Input voltage range 3.2V to 23.4V (no dead zone) advanced Renesas R3 Technology provides high light-load System output voltage 2.4V to 18.304V efficiency and fast transient response. Autonomous charging option (automatic end of charging) In Charging mode, the ISL9238 takes input power from a wide range of DC power sources (such as conventional AC/DC charger System power monitor PSYS output, IMVP compliant adapters, USB PD ports, and travel adapters) and safely charges Up to 1MHz switching frequency battery packs with up to 4-series cell Li-ion batteries. Adapter current and battery current monitor (AMON/BMON) As a NVDC topology charger, it also regulates the system output to a narrow DC range for stable system bus voltage. The system PROCHOT open-drain output, IMVP compliant power can be provided from the adapter, battery, or a Allows trickle charging of depleted battery combination of both. The ISL9238 can operate with only a battery, only an adapter, or both connected. For Intel IMVP8 Ideal diode control in Turbo mode compliant systems the ISL9238 includes System Power monitor Reverse buck, boost, and buck-boost operation from battery (PSYS) functionality, which provides an analog signal representing Two-level adapter current limit available total platform power. The PSYS output connects to a wide range of IMVP8 core regulators to provide an IMVP8 compliant power Battery Ship mode option domain function. 2 SMBus and auto-increment I C compatible The ISL9238 supports reverse buck, boost, or buck-boost 4x4 32 Ld TQFN package operation to input port from 2- to 4-cell batteries. 2 The ISL9238 has serial communication using SMBus/I C that Applications allows programming of many critical parameters to deliver a 1 to 4-cell tablet, Ultrabook, notebook, power bank, and any customized solution. USB-C interface portable device requiring batteries Related Literature For a full list of related documents, visit our website: ISL9238 device page OPTIONAL Rs1 VSYS VADP Q1 Q4 L1 Q3 Q2 VSYS CSIN CSOP CSIP R s2 ASGATE CSON ADP ACIN ISL9238 ACOK BGATE PROCHOT GND AMON/BMON VBAT VBAT BATGONE OTGPG/CMOUT OTGEN/CMIN PSYS FIGURE 1. TYPICAL APPLICATION CIRCUIT FN8877 Rev.9.00 Page 1 of 1 Jul 19, 2019 UGATE1 SCL LGATE1 SDA COMP BOOT1 PROG PHASE1 PHASE2 DCIN BOOT2 VDD LGATE2 VDDP UGATE2IMPORTANT NOTICE AND DISCLAIMER RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (RENESAS) PROVIDES TECHNICAL SPECIFICATIONS AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES AS IS AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for developers skilled in the art designing with Renesas products. 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