电源管理

概览

描述

The RAA210925 is a pin-strap configurable dual 25A step-down PMBus-compliant DC/DC power supply module that integrates a digital PWM controller, synchronous MOSFETs, power inductor, and passive components. Only input and output capacitors are needed to finish the design. Because of its thermally-enhanced HDA packaging technology, the module can deliver up to 25A of continuous output current without the need for airflow or additional heat sinking. The RAA210925 simplifies configuration and control of Renesas digital power technology while offering an upgrade to full PMBus configuration through the pin-compatible ISL8274M. Operating across an input voltage range of 4. 5V to 14V, the RAA210925 offers adjustable output voltages down to 0. 6V and achieves up to 95. 5% conversion efficiencies. A unique ChargeMode™ control architecture provides a single clock cycle response to an output load step and can support switching frequencies up to 1067kHz. The power module integrates all power and most passive components and requires only a few external components to operate. The RAA210925 comes with a preprogrammed configuration for operating in Pin-strap mode. Output voltage, switching frequency, input UVLO, soft-start/stop delay and ramp times, tracking function, and the device SMBus address can be programmed with external pin-strap resistors. A standard PMBus interface addresses fault management, as well as real-time full telemetry and point-of-load monitoring. The RAA210925 is supported by PowerNavigator™ software, a Graphical User Interface (GUI), that can configure modules for desired solutions. The RAA210925 is available in a low profile, compact 18mm x 23mmx 7. 5mm fully encapsulated, thermally enhanced HDA package.

特性

  • 25A/25A dual-channel output current
    • 4.5V to 14V single rail input voltage
    • Up to 95.5% efficiency
  • Programmable output voltage
    • 0.6V to 5V output voltage settings
    • ±1.2% accuracy over line/load/temperature
  • ChargeMode control loop architecture
    • 296kHz to 1067kHz fixed switching frequency operations
    • No compensation required
    • Fast single clock cycle transient response
  • PMBus interface and/or pin-strap mode
    • Programmable through PMBus
    • Pin-strap mode for standard settings
    • Real-time telemetry for VIN, VOUT, IOUT, temperature, duty cycle, and fSW
  • Complete over/undervoltage, current, and temperature protections with fault logging
  • PowerNavigator supported
  • Thermally enhanced 18mm x 23mm x 7.5mm HDA package

文档

文档标题 类型 日期
PDF2.93 MB
数据手册
PDF509 KB
应用文档
PDF397 KB
应用文档
PDF215 KB
End Of Life Notice
PDF257 KB
手册 - 开发工具
PDF2.02 MB
手册 - 开发工具
PDF693 KB
手册 - 硬件
 

设计和开发

软件与工具

软件和工具页面

Title 类型 公司
PowerNavigator SoftwareRenesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface.下载: Software Package Renesas

软件下载

文档标题 类型 日期
PDF215 KB
End Of Life Notice
ZIP54.93 MB
ZIP119.19 MB
ZIP59.25 MB
ZIP435 KB
ZIP1.75 MB
ZIP166 KB
ZIP1.49 MB
PCB设计文档
ZIP120.25 MB
软件和工具 - 其他
ZIP96.49 MB
软件和工具 - 软件
 

开发板与套件

开发板与套件

模型