The ISL8277MEVAL1Z and ISL8278MEVAL1Z evaluation boards are 3in x 4.5in 4-layer FR4 boards with 2 oz. of copper in all layers. These boards come with a placeholder for pin-strap resistors to adjust output voltage, switching frequency, input undervoltage (UVLO) protection threshold, and the device PMBus address. More configurations, such as soft-start and fault limits, can be easily programmed or changed using a PMBus compliant serial bus interface.

The ISLUSBEVAL1Z (USB to PMBus adapter) is provided with these boards, which connects the evaluation boards to a PC to activate the PMBus communication interface. The PMBus command set is accessed by using the PowerNavigator™ evaluation software from a PC running Microsoft Windows.

The ISL8277M (25A) and ISL8278M (33A) are step-down DC/DC power supply modules with an integrated digital PWM controller, synchronous power switches, an inductor, and passives. Only bulk input and output capacitors are needed to finish the design. The 25A and 33A of continuous output current can be delivered without the need for airflow or a heatsink. Both devices use ChargeMode™ control architecture, which responds to a transient load within a single switching cycle.

特性

  • VIN range of 4.5V to 14V, VOUT adjustable from 0.6V to 5V
  • Programmable VOUT, margining, UV/OV, IOUT limit, soft-start/stop, sequencing, and external synchronization
  • Monitor: VIN, VOUT, IOUT, temperature, duty cycle, switching frequency, and faults
  • ChargeMode control tunable with PMBus
  • Mechanical switch for enable and power-good LED indicator

应用

  • Servers, telecom, storage, and datacom
  • Industrial/ATE and networking equipment
  • General purpose power for ASIC, FPGA, DSP, and memory

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
ISL8277M Datasheet 数据手册 PDF 2.58 MB
ISL8278M Datasheet 数据手册 PDF 2.56 MB
使用指南与说明
ISL8277MEVAL1Z User Guide 手册 - 开发工具 PDF 1.38 MB
ISL8278MEVAL1Z User Guide 手册 - 开发工具 PDF 1.32 MB
ISLUSPLUS-UC2DEMO1Z User Guide 手册 - 开发工具 PDF 1.82 MB
应用指南 & 白皮书
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB

file_download下载

文档标题 language 类型 文档格式 文件大小 日期
软件
PowerNavigator™ Software v5.4.139 软件和工具 - 软件 ZIP 96.49 MB
Production Configuration Utility v5.4.139 Software & Tools - Other ZIP 120.25 MB
Hardware
ISL8278MEVAL1Z Design Files PCB设计文档 ZIP 886 KB

select_all软件和工具页面

文档标题 类型 Description Company
PowerNavigator Software Software Package Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface. Renesas