The ISL9237 is a buck-boost Narrow Output Voltage DC (NVDC) charger utilizing Intersil’s advanced R3™ Technology to provide high light-load efficiency, fast transient response and seamless DCM/CCM transitions for a variety of mobile and industrial applications. In Charge mode, the ISL9237 takes input power from a wide range of DC power sources (conventional AC/DC charger adapters, USB PD ports, travel adapters, etc. ) and safely charges battery packs with up to 3 cells in a series configuration. ISL9237 supports On-the-Go (OTG) function for 2- and 3-cell battery applications. When OTG function is enabled, the ISL9237 operates in the reverse Buck mode to provide 5V at the USB port. As a NVDC topology charger, it also regulates the system output to a narrow DC range for stable system bus voltage. The system power can be provided from the adapter, battery or a combination of both. The ISL9237 can operate with only a battery, only an adapter or both connected. For Intel IMVP8 compliant systems, the ISL9237 includes PSYS functionality, which provides an analog signal representing total platform power. The PSYS output will connect to a wide range of Intersil IMVP8 core regulators to provide an IMVP8 compliant power domain function. The ISL9237 has serial communication via SMBus/I2C that allows programming of many critical parameters to deliver a customized solution. These programming parameters include, but are not limited to: Adapter current limit, charger current limit, system voltage setting and trickle charging current limit.

特性

  • Buck-boost NVDC charger for 1-, 2- or 3-cell Li-ion batteries
  • Input voltage range 3.2V to 23.4V (no dead zone)
  • System output voltage 2.4V to 13.824V
  • System power monitor PSYS output, IMVP-8 compliant
  • Up to 1MHz switching frequency
  • LDO output for charger VDD
  • Adapter current monitor (AMON)
  • Battery discharging current monitor (BMON)
  • PROCHOT# open-drain output, IMVP-8 compliant
  • Allows trickle charging of depleted battery
  • Optional ASGATE FET control
  • Ideal diode control in Turbo mode
  • Supports OTG function for 2- and 3-cell batteries
  • SMBus and auto-increment I2C compatible
  • Two-level adapter current limit available
  • Pb-free (RoHS compliant)
  • Package 4x4 32 Ld QFN

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description文档

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
star ISL9237 Datasheet 数据手册 PDF 1.58 MB
使用指南与说明
ISL9237EVAL2Z User Guide 手册 - 开发工具 PDF 1.96 MB
应用指南 & 白皮书
Five Easy Steps to Create a Multi-Load Power Solution 白皮书 PDF 846 KB
解密USB-C升压-降压电池充电 English 白皮书 PDF 609 KB
Inside a New Architecture for USB Type-C Applications 白皮书 PDF 320 KB
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
PCN / PDN
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products 产品变更通告 PDF 327 KB
PCN21005 - Alternate assembly facility of the listed Renesas DFN / QFN / TDFN / TQFN packaged products 产品变更通告 PDF 158 KB
PCN17048A - Datasheet Change for the Listed Intersil Charger Products - Cancelled 产品变更通告 PDF 226 KB
PCN17048 - Datasheet Change for the Listed Intersil Charger Products 产品变更通告 PDF 222 KB
PA16047 - Datasheet Specification Change for the listed ISL9237* Products Product Advisory PDF 172 KB

file_download下载

文档标题 language 类型 文档格式 文件大小 日期
软件
ISL9237 Evaluation Kit Software ZIP 290.80 MB
Hardware
ISL9237EVAL2Z Design Files PCB设计文档 ZIP 1.88 MB

memory开发板与套件

器件号 文档标题 类型 Company
ISL9237EVAL2Z Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG Evaluation Board 评估 Renesas