ISL97651 4通道集成LCD电源

The ISL97651 represents a high power, integrated LCD supply IC targeted at large panel LCD displays. The ISL97651 integrates a high power, 4.4A boost converter for AVDD generation, an integrated VON charge pump, a VOFF charge pump driver, VON slicing circuitry and a buck regulator with 2A switch for logic generation.

The ISL97651 have been designed for ease of layout and low BOM cost. Supply sequencing is integrated for both AVDD -> VOFF -> VON and AVDD/VOFF -> VON sequences. The TFT power sequence uses a separate enable to the logic buck regulator for maximum flexibility.

Peak efficiencies are 90% for boost and 92% for buck while operating from a 4V to 5.5V input supply. The current mode buck offers superior line and load regulation. Available in the 36 Ld QFN package, the ISL97651 is specified for ambient operation over the -40°C to +105°C temperature range.

ISL97651 特点

• 4V to 5.5V input supply
• AVDD boost up to 20V, with integrated 4.4A FET
• Integrated VON charge pump, up to 34VOUT
• VOFF charge pump driver, down to -18V
• VLOGIC buck down to 1.2V, with integrated 2A FET
• Automatic start-up sequencing
  • AVDD -> VOFF -> VON or AVDD/VOFF -> VON
  • Independent logic enable
• VON slicing
• Thermally enhanced thin QFN package (6mmx6mm)
• Pb-free (RoHS compliant)

ISL97651 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL97651ARTZ	量产	Automotive	36 Ld QFN	2
ISL97651ARTZ-T	量产	Automotive	36 Ld QFN T+R	2
ISL97651ARTZ-TK	量产	Automotive	36 Ld QFN T+R	2

ISL97651 应用技术支持与电子电路设计开发资源下载

1. ISL97651 数据资料 datatSheet 下载.PDF