跳转到主要内容

概览

描述

The ISL95825 Pulse Width Modulation (PWM) controller IC provides a complete solution for VR12. 5™/VR12. 6™ compliant microprocessor core power supplies. It provides the control and protection for a Voltage Regulator (VR). The VR can operate in 3-, 2- or 1-phase configurations. The VR uses a serial control bus to communicate with the CPU and achieve lower cost and smaller board area. The VR utilizes Intersil’s Robust Ripple Regulator R3 Technology™. The R3 modulator has numerous advantages compared to traditional modulators, including faster transient response, variable switching frequency during load transients, and improved light load efficiency due to its ability to automatically change switching frequency. The ISL95825 has several other key features. It supports either DCR current sensing with a single NTC thermistor for DCR temperature compensation, or more precise resistor current sensing if desired. The output comes with remote voltage sense, programmable VBOOT voltage, ICCMAX, voltage transition slew rate and switching frequency, adjustable overcurrent protection and Power-Good signal.

特性

  • Serial data bus
  • Configurable 3-, 2- or 1-phase for the output
  • R3 Modulator
  • Excellent transient response
  • High light load efficiency
  • 0.5% system accuracy over-temperature
  • Supports multiple current sensing methods
  • Lossless inductor DCR current sensing
  • Precision resistor current sensing
  • Differential remote voltage sensing
  • Resistor programmable ICCMAX, VBOOT at start-up, voltage transition slew rate and switching frequency
  • Adaptive body diode conduction time reduction
  • Low supply current at PS4 state

产品对比

应用

文档

数据手册 登录后下载 PDF 1.38 MB
数据手册 - 精简版 PDF 195 KB
EOL 通告 PDF 603 KB
产品变更通告 PDF 326 KB
EOL 通告 PDF 319 KB
应用说明 PDF 509 KB
应用说明 PDF 397 KB
7 项目

设计和开发

模型

ECAD 模块

点击产品选项表中的 CAD 模型链接,查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用,可直接在 SamacSys 请求该符号或模型。

Diagram of ECAD Models

产品选项

当前筛选条件

支持

支持社区

支持社区

在线询问瑞萨电子工程社群的技术人员,快速获得技术支持。
浏览常见问题解答

常见问题

浏览我们的知识库,了解常见问题的解答。
提交工单

提交工单

需要咨询技术性问题或提供非公开信息吗?