【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:
这个可编程电流限制开关SGM2523,其ILIM引脚主要是用来实现过载和短路电流限制的。在应用是需要串一个电阻到地。如果限制电流1A,该电阻阻值推荐95.3K。
另外对于SS引脚,该引脚是一个软启动功能引脚(Soft Start),可以通过接一个电容到地,选择不同容值的电容。可以调节启动时的转换速率。
这两个引脚在应用时,都不能悬空处理。
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SGMICRO - 单通道配电开关,POWER DISTRIBUTION SWITCHES,SINGLE CHANNEL POWER DISTRIBUTION SWITCHES,配电开关,SGM2593AXN6G/TR,SGM2593A,SGM2593AD,SGM2593ADXN6G/TR,SGM2593AXTDI6G/TR,SGM2593ADXTDI6G/TR,USB BUS,智能电话,通用电源开关,自供电集线器,USB外围设备,ACPI POWER DISTRIBUTION,USB总线,USB PERIPHERAL,LCD TV,GENERAL PURPOSE POWER SWITCHING,ACPI配电,SMART PHONE,液晶电视,SELF-POWERED HUB
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
【选型】负载开关SGM2593DXN6G/TR用于USB保护,具有0.1~3A可调输出电流限制
某客户在调试设备上面有用到USB接口,需要做一个USB保护功能。本文推荐SGMICRO的负载开关SGM2593DXN6G/TR,可以用于5V保护;该产品可编程电流范围是0.1A至3A,工作电压2.5V~6V,满足USB工作电压和电流范围。
SGM2593/SGM2593D配电开关
SGM2593/SGM2593D是一款单通道电源分配开关,适用于2.5V至6V的供电电压。该产品具有可编程电流限制功能,用于保护上游电源免受过流或短路损坏,并具备过温保护功能。它还集成了软启动电路,以应对大电容负载时的浪涌电流。SGM2593D通过集成47Ω下拉电阻进一步减小了总解决方案的尺寸。该产品适用于通用电源开关、USB总线/自供电集线器、USB外设、ACPI电源分配、智能手机、LCD电视等应用。
SGMICRO - 单通道配电开关,POWER DISTRIBUTION SWITCHES,SINGLE CHANNEL POWER DISTRIBUTION SWITCHES,配电开关,SGM2593D,SGM2593XTDI6G/TR,SGM2593,SGM2593DXN6G/TR,SGM2593DXTDI6G/TR,SGM2593XN6G/TR,USB BUS,智能电话,通用电源开关,自供电集线器,USB外围设备,ACPI POWER DISTRIBUTION,USB总线,USB PERIPHERAL,LCD TV,GENERAL PURPOSE POWER SWITCHING,ACPI配电,SMART PHONE,液晶电视,SELF-POWERED HUB
SGMicro(圣邦微) SGM2521/ SGM2522 电流限制开关官方数据手册
SGM2521/SGM2522 Programmable Current Limit Switches.
SGMICRO - 电流限制开关,PROGRAMMABLE CURRENT LIMIT SWITCHES,可编程电流限位开关,SGM2522YS8G/TR,SGM2522YTDC8G/TR,SGM2522YS8,SGM2521YS8,SGM2521,SGM2521YTDC8G/TR,SGM2522,SGM2521YS8G/TR,白色商品,SMART LOAD SWITCH/USB SWITCH,SMART METERS,ADAPTER POWER DEVICES,SMART METERS, GAS ANALYZERS,白色家电,器具,机顶盒、DVD和游戏机,WHITE GOODS,APPLIANCES,SET TOP BOXES, DVD AND GAMING CONSOLES,WHITE GOODS,智能负载开关/USB开关,适配器电源设备,硬盘驱动器和固态硬盘驱动器,HDD AND SSD DRIVES,SET TOP BOXES、DVD AND GAMING CONSOLES,APPLIANCES,气体分析仪,GAS ANALYZERS,智能仪表、气体分析仪,智能电表
【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
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。
SGM25711B 2.5V至18V高效率热插拔控制器,具有功率限制功能
SGM25711B是一款2.5V至18V高效率热插拔控制器,具备功率限制功能。该控制器允许板子在活络背板上安全地插入或移除。它通过内部电路驱动外部N-MOSFET开关来控制电压,并提供可编程电流限制、功率限制和故障时间,以确保外部MOSFET始终在其安全工作区域内工作。
SGMICRO - HIGH-EFFICIENCY HOT SWAP CONTROLLER,高效热插拔控制器,热插拔控制,HOT SWAP CONTROLLER,SGM25711B,SGM25711BXMS10G/TR,SAN,存储区域网络,基站,BASE STATIONS,PLUG-IN MODULES,插入式模块,MEDICAL SYSTEMS,桑桑,医疗系统,STORAGE AREA NETWORKS
SGM2590/SGM2590D配电开关
SGM2590/SGM2590D是一款单通道电源分配开关,适用于2.5V至6V的供电电压。它具有高侧N-MOSFET、可编程电流限制、过温保护和软启动功能,适用于USB电源分配应用。
SGMICRO - 单通道配电开关,POWER DISTRIBUTION SWITCHES,SINGLE CHANNEL POWER DISTRIBUTION SWITCHES,配电开关,SGM2590,SGM2590DXN5G/TR,SGM2590D,SGM2590XN5G/TR,USB BUS,ACPI配电,SMART PHONE,智能电话,自供电集线器,USB外围设备,ACPI POWER DISTRIBUTION,USB总线,USB PERIPHERAL,液晶电视,SELF-POWERED HUB,LCD TV
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)
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Vcc (Max)(V)
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Iq (μA)
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Continuous Output Current (mA)
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Current Limit(mA)
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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。
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可定制变压器的常规尺寸从EE4.4到ETD49不等,温度范围:-40℃~150℃。自动化产品的起订数量:20KPCS,其它定制产品无起订量要求。
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可定制共模扼流圈、DIP功率扼流圈、大电流扼流圈、环形扼流圈/线圈等产品,耐温范围-40℃~125℃,电感量最高1200mH。
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