概览

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The ISL97649A is an integrated power management IC (PMIC) for TFT-LCDs used in notebooks, tablet PCs, and monitors. The device integrates a boost converter for generating AVDD, an LDO for VLOGIC. VON and VOFF are generated by a charge pump driven by the switch node of the boost. The ISL97649A also includes a VON slice circuit, reset function, and a high performance VCOM amplifier with DCP (Digitally Controlled Potentiometer) that is used as a VCOM calibrator. The AVDD boost converter features a 1. 5A/0. 18Ω boost FET with 600/1200kHz switching frequency. The logic LDO includes a 350mA FET for driving the low voltage needed by external digital circuitry. The gate pulse modulator can control the gate voltage up to 30V, and both the rate and slew delay times are selectable. The supply monitor generates a reset signal when the system is powered down. It provides a programmable VCOM with I2C interface. One VCOM amplifier is also integrated in the chip. The output of the VCOM is powered up with the voltage at the last programmed 8-bit EEPROM setting.

ISL97649A Functional Diagram
ISL97649A Functional Diagram
  • 2.5V to 5.5V input
  • 1.5A, 0.18Ω integrated boost FET
  • VON/VOFF supplies generated by charge pumps driven by the boost switch node
  • LDO for VLOGIC channel
  • 600/1200kHz selectable switching frequency
  • Integrated gate pulse modulator
  • Reset signal generated by supply monitor
  • Integrated VCOM amplifier
  • DCP
  • I2C serial interface, address: 0101000, MSB left
  • Wiper position stored in 8-bit nonvolatile memory and recalled on power-up
  • Endurance, 1,000 data changes per bit
  • UVLO, UVP, OVP, OCP, and OTP protection
  • Pb-free (RoHS compliant)
  • 28 Ld 4x5 QFN

应用

  • LCD notebook, tablet, and monitor

文档

= 相关文档
类型 文档标题 日期
数据手册
ISL97649A Datasheet
PDF 1.39 MB
End Of Life Notice
PLC15033 - Product Discontinuance / Obsolescence NotificationProducts
PDF 200 KB
产品变更通告
PCN13060 - Test Site Change for the Listed Intersil Products
PDF 223 KB
产品变更通告
PCN13024 - Alternate Manufacturing Site for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering - Chung-Li, Taiwan (ASECL
PDF 183 KB
产品变更通告
PCN13009 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li (ASECL), Taiwan and STATS ChipPAC (SCM) - Kuala Lump
PDF 173 KB
手册 - 开发工具
ISL97649xIREVALZ User Guide
PDF 860 KB
6 items

设计和开发

软件下载
类型 文档标题 日期
库
ISL97649A Software Installer v1.3
EXE 514 KB
1 item

ECAD 模块

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    购买 / 样片
    器件号
    ISL97649AIRZ
    circle过时
    memory
    spa
    view_in_ar
    		QFN Tube
    ISL97649AIRZ-T
    circle过时
    memory
    spa
    view_in_ar
    		QFN Reel
    Parametric Table tips

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