加入交流群  

扫一扫,添加管理员微信
备注:参考设计,即可被拉入群
和也在搞设计小伙伴们碰一碰

收藏 

评论 

elleny 发布

基于A6986F5V的38V、1.5A同步降压型开关稳压器评估板

STEVAL-ISA189V1

 
设计简介

The STEVAL-ISA189V1 is a product evaluation board based on the ST synchronous step-down switching regulator A6986F5V, which can deliver up to 1.5 A and, with its 100% duty cycle ability to withstand cold crank events and wide input operating voltage range, represents the ideal choice for battery-powered automotive systems. Synchronous rectification helps achieve higher efficiency at full load as well as application compactness, while high-frequency switching (programmable up to 2 MHz) helps reduce the cost and size of power passive components while remaining outside the AM band. The device can operate in low consumption mode (LCM), with a quiescent current of 30 μA that ensures high efficiency under light load, which is a requirement in typical car body applications that are active when a car is parked. A low noise mode (LNM) can be selected to meet the requirements of infotainment applications with forced PWM mode under all load conditions. The default board configuration is LCM active, 500 kHz switching frequency, high ISKIP current and the switchover feature enabled, but all of these settings can be easily changed so the user can evaluate different application scenarios.

主要特性

  • AECQ100 qualification
  • 1.5 A DC output current
  • 4 V to 38 V operating input voltage
  • Low consumption mode or low noise mode
  • Programmable ISKIP current
  • 45 μA IQ at light load (LCM VIN = 12 V)
  • 8 μA IQ-SHTDWN
  • Adjustable fSW (250 kHz - 2 MHz)
  • Fixed output voltage VOUT= 5 V
  • Embedded output voltage supervisor
  • Synchronization
  • Adjustable soft-start time
  • Internal current limiting
  • Overvoltage protection
  • Output voltage sequencing
  • Peak current mode architecture
  • RDS(on)HS = 180 mΩ; RDS(on)LS = 150 mΩ
  • Thermal shutdown
  • RoHS compliant
参考设计图片
×

!注意:请使用浏览器自带下载,迅雷等下载软件可能无法下载到有效资源。

 
相关器件
器件 类型 描述 数据手册
A6986F 降压稳压器 38 V 1.5 A同步降压开关稳压器,30 uA静态电流 点击下载
群聊设计,与管理员及时沟通

欢迎加入EEWorld参考设计群,也许能碰到搞同一个设计的小伙伴,群聊设计经验和难点。 入群方式:微信搜索“helloeeworld”或者扫描二维码,备注:参考设计,即可被拉入群。 另外,如您在下载此设计遇到问题,也可以微信添加“helloeeworld”及时沟通。

 
查找数据手册?

EEWorld Datasheet 技术支持

论坛推荐 更多
更新时间2024-11-10 17:53:33

 
EEWorld订阅号

 
EEWorld服务号

 
汽车开发圈

About Us 关于我们 客户服务 联系方式 器件索引 网站地图 最新更新 手机版 版权声明

EEWORLD参考设计中心

站点相关: TI培训 德州仪器(TI)官方视频课程培训

北京市海淀区中关村大街18号B座15层1530室 电话:(010)82350740 邮编:100190

电子工程世界版权所有 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号 Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved