【应用】国产圣邦微SGM2523限流开关芯片用于USB充电线,具有欠压保护、过热保护及短路保护功能
所谓充电器,是指采用电力电子半导体器件,将电压和频率固定不变的交流电变换为直流电的一种静止变流装置。可为充电电池充电,为蓄电装置提供能量。我们手机所用的均为锂电子电池,只是从一开始的小容量可拆卸电池发展到今天一体不可拆卸式。随着手机的不断更新换代,电池容量不断提升,手机充电接口也在不断发展进步。
本文推荐圣邦微SGM2523限流开关应用于USB-C充电线上,设置限流阈值,阈值可通过ILIM口外置的额RILIM电阻器设置,当过流时会进行关断保护,由于内部集成了过流和短路保护功能,SGM2523能够避免输入电源过度设计,短路保护快速响应机制确保系统在检测到短路情况时迅速将负载与输入进行隔离。同时,该器件还允许用户通过一个外部电阻器对0.1A到1.2A之间的过电流极限阈值进行编程,其3%的阈值精度可确保严格监控总线电压,用户无需设计单独的电压监控芯片。该芯片在应用框图如下:
下图SGM2523的典型应用电路:
圣邦微SGM2523是一颗限流开关芯片,其具有以下优势:
1.保护功能:内部集成了过流和短路保护功能,SGM2523能够避免输入电源过度设计,短路保护快速响应机制确保系统在检测到短路情况时迅速将负载与输入进行隔离。
2.工作温度范围广:-40℃至+125℃,在室温条件下限流精度能够保持在±10%内,确保SGM2523在各类环境的精度。
3.灵活度高:可调电流限制0.1A-1.2A,极大的提升了应用的灵活度。
4.损耗小:导通电阻为75mΩ,大大节省项目的成本,实现高效运行。
综上所述,圣邦微SGM2523是颗限流开关芯片,凭借其出色的优势,可满足USB充电线的需求。
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【经验】圣邦微负压输出BUCK-BOOST芯片SGM660设计经验分享
SGM660是圣邦微的一款负压输出BUCK-BOOST芯片,输入电压2.8-5.5V,输出电压-0.8V to -5.2V,0.1V/Step,开关电流和工作频率都是可编程的,内置峰值电流限制、软起动和欠压保护等功能,提供超小封装WLCSP-0.9×1.3-6B。其输出电压、工作频率、限流值、工作模式都是通过SWIRE脚(数字接口)控制,下面介绍在实际设计中如何配置。
SGM DFAE训练负荷开关-OVP-Supervisor
本文详细介绍了高性能模拟负载开关及其在电源管理、监控、复位等系统中的应用。内容涵盖负载开关的定义、工作原理、数据手册参数、应用场景、保护特性、功耗和热管理等方面。同时,文章还列举了多种负载开关产品及其特性,如SGM25062、SGM2575A、SGM2566C等。
SGMICRO - 正高压热插拔和涌入电流控制器,NANO-POWER SYSTEM TIMER,LOAD SWITCH,低功耗微处理器监控电路,LOW POWER MICROPROCESSOR SUPERVISORY CIRCUIT,微处理器监控电路,纳米功率系统定时器,MICROPROCESSOR SUPERVISORY CIRCUIT,负载开关,POSITIVE HIGH-VOLTAGE HOT SWAP AND INRUSHCURRENT CONTROLLER,SGM2594CD,SGM48757,SGM48111,SGM8544,SGM853,SGM452,SGM450,SGM2564,SGM2522A,SGM2594BD,SGM812C,SGM2040-3.3,SGM48220,SGM836,SGM61220,SGM8773,SGM2591B,SGM8252,SGM2591C,SGM8770,SGM2591A,SGM4578,SGM2553,SGM2036,SGM2575A,SGM809B,SGM48017,SGM2592AD,SGM803B,SGM2580F,SGM259X 系列,SGM2580G,SGM2580D,SGM2580E,SGM61430,SGM2580K,SGM2580I,SGM2592C,SGM2580B,SGM2580,SGM2580C,SGM2592A,SGM8713A,SGM2592B,SGM2580A,SGM8713B,SGM3157,SGM2576B,SGM2588,SGM66051,SGM2207,SGM802B,SGM25701,SGM61280,SGM40642,SGM25661,SGM2572,SGM7220,SGM2571,SGM485211,SGM4995,SGM2574,SGM2210,SGM8958,SGM2576,SGM706B,SGM2212,SGM25701B,SGM8558,SGM72204,SGM7227,SGM8955,SGM25701A,SGM7229,SGM8956,SGM809,LM2904,SGM2591AD,SGM803,SGM804,SGM2592CD,SGM61135,SGM801,SGM802,SGM40666S,SGM2594A,SGM810,SGM2594B,SGM811,SGM41518,SGM41512,SGM2594C,SGM6602,SGM4027,SGM2521,SGM259X,SGM7200X,SGM2523,SGM2566B,SGM2522,SGM2566C,SGM3699,SGM2525,SGM2578A,SGM2566A,SGM2528A,SGM41511,SGM61020,SGM2592BD,SGM48541,SGM2590,SGM2592,SGM2591,SGM2594,SGM2593,SGM2596,SGM3206,SGM37892,SGM4535,SGM2567A,SGM811C,SGM2594AD,SGM851A,SGM851B,SGM2539,SGM708,SGM829,SGM41542,SGM41543,SGM42633,SGM827,SGM706,SGM828,SGM851C,SGM825,SGM61232,SGM826,SGM48211,SGM2591CD,SGM823,SGM824,SGM2572A,SGM40666AS,SGM2572B,SGM2584A,SGM2572C,SGM431,SGM460141,SGM2528B,SGM2528C,SGM2028,SGM3756,SGM810B,SGM2527,SGM2526,SGM48524D,SGM818,SGM816,SGM25062,SGM814,SGM2591BD,SGM815,SGM812,SGM8270N,SGM821,SGM8967-1,SGM40666BS,SGM8477,SGM41528,SGM8631,SGM708-S,SGM820,SGM708-T,SGM8197,SGM708-R,SGM8750,SGM4066X,SGM708-M,SGM6610,SGM708-L,SGM2531,SGM2521A,SGM2534,SGM708-J,SGM2533,低功率系统,WIRELESS SENSOR,BATTERY CHARGING PORTS,USB从设备,临界ΜP功率监测,MOBILE PHONES,通讯电源,MICROPROCESSOR SYSTEM,POWER SUPPLY,适配器供电设备,3G WIRELESS DATA-CARDS,SMART HOME CONTROLLERS,篡改探测器,TABLET COMPUTERS,NETWORK SWITCH,USB POWER SWITCHES,物联网,4G无线数据卡,ADAPTER POWERED DEVICES,CELL PHONES,移动电话,汽车设备,逆变器,LOW POWER SYSTEMS,3G无线数据卡,CRITICAL ΜP POWER MONITORING,USB电源开关,SMART PHONES,AUTOMOTIVE EQUIPMENT,TAMPER DETECTORS,COMPUTERS,智能仪器,手机,电子烟,PORTABLE EQUIPMENT,微处理机系统,网络交换机,IOT,笔记本,便携式设备,智能手机,USB SLAVE DEVICES,SOLID STATE DRIVES,NOTEBOOK,SSD,INTELLIGENT INSTRUMENTS,无线传感器,智能家居控制器,平板电脑,电池充电端口,固态硬盘,电源,智能POS机应用,E-CIGARETTE,4G WIRELESS DATA-CARDS,MIFI,计算机
SGM2523可编程限流开关
SGM2523是一款可编程电流限制开关,具有宽输入电压范围(2.6V至22V),适用于多种直流总线。该器件提供±10%的电流限制精度,并具备短路保护、过温保护和故障标志等功能。它采用绿色SOT-23-6封装,工作温度范围为-40℃至+125℃。
SGMICRO - 紧凑型电子保险丝,EFUSE,COMPACT ELECTRONIC FUSE,电熔丝,PROGRAMMABLE CURRENT LIMIT SWITCH,可编程电流限位开关,SGM2523AXN6G/TR,SGM2523BXN6G/TR,SGM2523,SGM2523A,SGM2523B,USB3.1 POWER DELIVERY,HOT SWAP,USB POWER DISTRIBUTION,电信,汽车,E-METER,电能表,USB电源分配,AUTOMOTIVE,适配器电源设备,INDUSTRY,TELECOM,USB3.1供电,产业,ADAPTER POWER DEVICE,热插拔
SGMICRO负载开关选型表
24V、5.5V负载开关,最大负载电流6A,限流值可调,多种小封装。防反向电压,70热插拔芯片。
产品型号
|
品类
|
Vcc (Min)(V)
|
Vcc (Max)(V)
|
Iq (μA)
|
Continuous Output Current (mA)
|
Current Limit(mA)
|
Soft-Start
|
Package
|
SGM2521
|
Load Switch
|
4.5
|
24
|
170
|
2000
|
Programmable (260~2000)
|
Soft-Start
|
SOIC-8 TDFN-2×3-8BL
|
选型表 - SGMICRO 立即选型
圣邦微电子携数据转换器、超低功耗系统监控等7大专业解决方案亮相2021慕尼黑上海电子展
2021慕尼黑上海电子展于4月16日在上海新国际博览中心圆满落幕。此次圣邦微电子展出了数据转换器、系统监控、电机驱动器、DC/DC转换器、充电管理等相关产品,进行了详细的产品介绍和深入的技术讨论。
IEC 62368-1/EN 62368-1/UL 62368-1 与有关集成电路产品应用指南
本文档为圣邦微电子(北京)股份有限公司发布的关于IEC 62368-1/EN 62368-1/UL 62368-1标准的应用指南。指南概述了62368标准的设计目的、适用范围、认证要求以及涉及到的集成电路产品,如电池保护芯片/充电芯片、电子限流器和功率有限电源电路相关产品。指南还强调了认证过程中对内部元件的认证要求,并指出内部元件认证不能替代整机认证。
SGMICRO - 电子限流器,充电路径开关,充电芯片,电池保护器,功率有限电源电路,IC,过电流保护装置,OVERCURRENT PROTECTIVE DEVICE,集成电路,电池保护芯片,台式电脑,通讯装置,碎纸机,影印机,家庭剧院,网络基础架构设备,投影仪,信息类个人设备,显示装置,通讯产品,无线电话,行动电话,显示器,网络产品,路由器,电脑,消费类电子产品,电源,荧屏装置,服务器,办公室设备,笔记本电脑,扩音器,个人音乐播放器,数码相机,电视
【经验】可编程电流限制开关电子保险丝SGM2523 ILIM及SS引脚连接问题探讨
某用户在使用圣邦微的这个可编程电流限制开关电子保险丝(eFuse)SGM2523,对于该器件在使用时,ILIM及SS引脚连接问题不太了解,是否可以做悬空处理?这里笔者结合SGM2523的内部框图为其做了解答。
【产品】可精确调节电流限制的配电开关,符合USB限流要求
圣邦微电子(SGMICRO)推出了三款在大容性负载或短路情况下需要精确限流的配电开关——SGM2553、SGM2553D和SGM2553E,能够符合USB限流要求。它们可以分别提供高达1.5A、1.5A和0.2A的连续负载电流。这三款芯片通过外部电阻可以分别提供100mA至1.7A、100mA至1.7A和100mA至200mA的可编程电流限制阈值。
【应用】国产圣邦微负载开关SGM2523BXN6G/TR用于摄像头供电短路保护,输入电压2.6V-22V
摄像头的供电电压一般采用的12VDC供电,最大电流大小在800mA左右,当后级负载发生短路的时候,电流会超过800mA,为了保护后级电路的安全性,需要在摄像头供电电路的前端添加一个负载开关,本文将介绍圣邦微的负载开关SGM2523BXN6G/TR在摄像头中提供供电短路保护。
【应用】圣邦微可编程限流开关SGM2521YS8G/TR在电子保险丝上的应用,响应快且可重复使用
常规的电源芯片生效太慢,达不到保护精密负载的作用,然而使用快断保险丝虽然可以将负载及时断开,但是负载断开之后不会重新导通,圣邦微的可编程限流开关SGM2521YS8G/TR就可以克服这两个问题,响应快,可重复使用。
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