【产品】可精确调节电流限制的配电开关，符合USB限流要求

时间： 2018-09-25 来源：SGMICRO

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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，电流限制阈值电阻范围分别为20kΩ到387kΩ、20kΩ到387kΩ和200kΩ 到390kΩ。通过控制电源开关的上升和下降时间可以最大限度地减少打开/关断期间的电流浪涌。SGM2553D和SGM2553E在禁用状态下具有快速自动放电功能。

SGM2553、SGM2553D和SGM2553E通过使用恒定电流模式可以在输出负载超过电流限制阈值时将输出电流限制在安全水平。当输出电压高于输入电压时，内部反向电压比较器禁用电源开关，用于保护开关输入侧的器件。这三款芯片具有低的高侧MOSFET导通电阻，导通电阻的典型值为90mΩ，并且高侧MOSFET无反向漏电流。

SGM2553、SGM2553D和SGM2553E工作的电源电压范围为2.5V至5.5V，额定工作温度范围为-40℃至+85℃。它们采用绿色TDFN-2×2-6L和SOT-23-6两种封装，SGM2553E采用绿色TDFN-2×2-6L封装，封装的引脚配置如图1所示。这三款芯片的典型应用电路如图2所示，主要应用于USB端口/集线器、数字电视、机顶盒以及VOIP手机等领域。

图1 SGM2553,SGM2553D和SGM2553E的引脚配置

图2 SGM2553,SGM2553D和SGM2553E的典型应用电路

配电开关SGM2553,SGM2553D和SGM2553E的产品特性：

●最大负载电流分别高达1.5A、1.5A和0.2A

●符合USB限流要求

●可调节电流限制：100mA至1.7A（SGM2553和SGM2553D），100mA至200mA（SGM2553E）

●快速过流响应：2μs（SGM2553,SGM2553D）

●高侧MOSFET导通电阻90mΩ

●高侧MOSFET无反向漏电流

●反向输入 - 输出电压保护

●工作电压范围：2.5V至5.5V

●内置软启动功能

●禁用状态下的快速自动放电（SGM2553D、SGM2553E）

配电开关SGM2553,SGM2553D和SGM2553E的应用领域：

●USB端口/集线器

●数字电视

●机顶盒

●VOIP手机

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全部评论（11）

阳光1212 Lv5. 技术专家 2018-11-10

很好
蓝烟 Lv4. 资深工程师 2018-11-03

学习了
小万 Lv7. 资深专家 2018-11-03

好资料
先天二极管 Lv8. 研究员 2018-10-20

学习
幸福 Lv7. 资深专家 2018-10-12

学习

每天学习一点点儿 Lv9. 科学家 2018-10-12

不错
yuyu Lv8. 研究员 2018-09-27

学习了！
小伟 Lv7. 资深专家 2018-09-25

收藏了，
nemo Lv7. 资深专家 2018-09-25

学到了
用户84786367 Lv8. 研究员 2018-09-25

学习了

展开更多评论

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圣邦微电子（SGMICRO）推出了两款针对需要电路保护的通用配电进行优化的双通道高侧MOSFET开关——SGM2558和SGM2560。它们内置电荷泵，可以用于驱动没有寄生二极管的MOSFET，并消除开关上的任何反向电流。它们具有低导通电阻和低功耗的优点，高侧MOSFET的每通道导通电阻典型值为90mΩ，静态供电电流的典型值为28μA，关断供电电流的典型值为0.1μA。

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【产品】每通道90mΩ高端MOSFET开关，专为配电开关设计

SGM2559是圣邦微电子推出的一款高端MOSFET开关，主要针对需要电路保护的通用配电进行了优化。内置电荷泵用于驱动没有寄生体二极管的MOSFET，每通道90mΩ（TYP）高端MOSFET，以消除开关上的反向电流。SGM2559内部电流限制，具有热关断功能，可保护器件和负载。超低功耗，低静态电流仅28μA（双通道）。

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SGMICRO（圣邦微）信号链和电源管理芯片选型指南

描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.

型号- SGM11108M,SGM8306-2,SGM8306-1,SGM61450,SGM3733B,SGM11108E,SGM852,SGM853,SGM851,SGM5347-12,SGM2558A,SGM2558B,SGM8261-5,SGM2564,SGM8261-1,SGM5347-10,SGM8261-2,SGM2549,SGM48017C,SGM72110,SGM8094,SGM836,SGM8091,SGM837,SGM61220,SGM8092,SGM8093,SGM835,SGM72108,SGM2553,SGM72106,SGM2555,SGM809B,SGM4519,SGM4517,SGM4518,SGM48010,SGM11106C,SGM63600,SGM41611,SGM4520,SGM4521,SGM48005,SGM8417-4,SGM8417-2,SGM4051C,SGM48000,SGM48001,SGM48002,SGM3843A,SGM61433,SGM621,SGM84782,74HC574,SGM58031,SGM620,SGM862,SGM41600,SGM2572,SGM41603,SGM860,SGM2571,SGM51622H,SGM4995,SGM4511,SGM2574,SGM4996,SGM4512,SGM4510,SGM2575,SGM51622D,SGM4515,SGM8T245S,SGM4516,SGM8250-1,SGM8250-2,SGM4514,SGM3209,SGM809,SGM8557-3,SGM8557-1,SGM8557-2,SGM803,SGM61012,SGM804,SGM802,SGM61013,SGM810,SGM811,SGM61007,SGM61006,SGM4782,SGM7237B,SGM8902,SGM8903,SGM8904,SGM4542,SGM8905,SGM4548,SGM4549,SGM3699,SGM4546,SGM4547,SGM48013C,SGM62110,SGM61020,SGM62112,AAP6153A,SGM61022,SGM62111,SGM800,SGM2596,SGM3200,SGM3206,SGM8270-2,SGM3207,SGM4535,SGM3204,SGM8270-4,SGM8T245,SGM829,SGM61230,SGM42512,SGM41664,SGM825,SGM61232,SGM823,SGM61234,SGM824,SGM891B,SGM42507,SGM42506,SGM40567,SGM4560,SGM42505,SGM4561,SGM6503,SGM4566,SGM8925,SGM6502,SGM8926,SGM6501,SGM4564,SGM8927,SGM5349-16,SGM4565,SGM6505,SGM4568,SGM6504,SGM8909,SGM818,SGM890B,SGM816,SGM42501,SGM40565,SGM42500,SGM814,SGM815,SGM812,SGM40560,SGM40561,SGM821,SGM822,SGM61235,SGM820,SGM4551,SGM4552,SGM4550,SGM4555,SGM4556,SGM4553,SGM4554,SGM51652S8,SGM8910,SGM5347-8,SGM4558,SGM11124E,SGM37863A,SGM11124F,74LVC2T45,SGM893B,SGM4581,SGM8941,SGM4582,SGM4583,SGM48521Q,SGM8704,SGM4588,SGMNQ59430,SGM8705,SGM4589,SGM8706,SGM8707,SGM8942,SGM8701,SGM8702,SGM8703,SGM12213A,SGM11210A,SGM61060,SGM2050C,SGM12UB1D2,SGM892B,SGM8276-4,SGM6510,SGM4573,SGM3001,SGM4574,SGM42513,SGM6514,SGM3005,SGM6513,SGM4578,SGM8276-2,SGM3002,SGM6512,SGM42622B,SGM8276-1,SGM3003,SGM6511,SGM4576,SGM8931,SGMOP17C,SGM8932,SGM8933,SGM6516,SGM12214A,SGM8934,SGM6515,SGM11210M,SGMNE20220,74AVC8T245,SGM3141B,SGM61030,SGM42403Q,SGM42553,SGM61032,SGM61031,74HC165,SGM62116,SGM8953-1,SGM62118,SGM8953-2,SGM62117,SGM8708,SGM8709,SGM4075-2,SGM3140B,SGM61040,SGM4075-1,SGM42544,SGM7300A,SGM7300B,SGM42541,SGM42540,SGM8951,SGM8952,SGM8710,SGM4590,SGM5200,SGM38045,SGM38042,SGM6533,SGM8711,SGM8712,SGM8955,SGM38046,SGM8956,SGM2053S,SGM8199L2,LM2904,SGM8199L1,SGM41002,SGM8968-4,SGM8968-2,LM2902,SGM8968-1,SGM8740,SGM8741,SGM8742,SGM2077A,SGM8743,SGM2077B,SGM8263-1,SGM8748,SGM8263-2,SGM8417-1,SGM8749,SGM12CB1A5,SGM8744,SGM40666B,SGM8745,SGM11104S,SGM40666A,SGM8746,SGM8747,SGM41513D,SGM41513A,SGM42561,SGM42560,SGM8957-1,SGM8957-2,SGM42562,SGM5208-14,SGM5223,SGM48018C,SGM11102F,SGM11102G,SGM41512A,SGM37603A,SGM8521,SGM8522,SGM11102S,SGM33685A,SGM5018,SGM33685B,SGM33685C,SGM8524,SGM8604-1,SGM11103E,SGM8604-5,SGM8193A3,SGM11103F,SGM8604-2,SGM8193A2,SGM48019C,SGM8604-3,SGM8193A1,SGM8193A0,SGM37604A,SGM8751,SGM11103S,SGM41007,SGM41008,SGM6332,SGM8750,FT2830P,SGM11212M,SGM41280,SGM41281,SGM41283,SGM5353-16,SGM37891A,SGM41285,SGM41286,SGM7SZ244S,SGM8542,SGM51652H8,SGM8543,SGM8301,SGM8544,SGM8302,SGM8545,SGM51652H4,SGM8541,SGM8429C-4,SGM8304,SGM8607-2,SGM37892A,SGM13003A,SGM8531,SGM8773,SGM8532,SGM8534,SGM8770,SGM8771,SGM8772,SGM8535,SGM8536,SGM8537,SGM12024A,SGM8538,SGM65230,SGM37893A,SGM65231,SGM65232,SGM8969-2,SGM8969-1,SGM13002A,SGM2035C,SGM7232,SGM9128YP,SGM41291,SGM2036S,74LVC1G32Q,SGM13001C,SGM13001B,74LVC138,SGM2581E,SGM8958-2,SGM41295,SGM13001A,SGM8958-1,SGM7222,SGM6132,SGM8554,SGM7223,SGM8555,SGM7224,SGM6130,SGM8556,SGM2581C,SGM8551,SGM7220,SGM2581A,SGM8552,SGM7226,SGM7227,SGM7228,SGM7229,SGM44599,SGM8581,SGM8713A-1,SGM8582,SGM6613A,SGM8584,SGM832B,SGM41282C,SGM832A,SGM8714B-1,SGM8924A,SGM811C,SGM5355-16,SGM7SZ19,74LVC1G125,SGM48535B,SGM89000,SGM7SZ14,SGM811B,SGM48535A,SGM48752X,SGM431VB,SGM2560A,SGM37603,SGM2560B,SGM6611C,SGM15CB1A4,SGM810B,SGM41280A,SGM8591,SGM8592,SGM48753X,SGM9203,SGM6612A,SGM8594,SGM8922A,SGM4T245,SGM48753,SGM48754,SGM48755,SGM48756,SGM51242R8,SGM48757,SCM40668,SGM813B,SGM48759,74AVC4T245,SGM8140,SGM8141,SGM48751,SGM449,SGM48752,SGMNQ07430,SGMPM21330,SGM48510,SGM458,SGM3785S,SGM37864,SGM61720,SGM459,SGM37863,SGM457,SGM8142,SGM452,SGM450,SGM451,SGM05UB1B3,SGM37862,SGM37861,SGM05CB1A8,SGM05CB1A7,SGM812B,SGM05CB1A4,74GTL2005,SGM25881,SGM447,SGM448,SGM446,SGM7SZ244,SGM8478-1C,SGM51242R4,SGM8139,SGM51242R2,SGM3705,SGM48536,SGM48537,SGM48538,SGM48539,SGM5351-16,SGM2588G,SGM2588E,SGM2588K,SGM3712,SGM3713,SGM2588C,SGM3710,SGM3711,SGM2588A,SGM48522,SGM48523,SGM48525,SGM48526,SGM48760,SGMNQ07440,SGM48520,SGM48521,SGM8557-5,SGM71XX,SGM706B,SGM460,SGM3701,SGM3700,SGM3727,SGM3741B,SGM3725,SGM3726,SGMOP07,SGM898,SGM899,SGM896,SGM897,SGM895,SGM4823,SGM2566B,SGM3735,SGM3732,SGM4822,SGM2566A,SGM3716,SGM3740B,SGM48544,SGM4806,SGM3717,SGM48545,SGM3714,SGM3715,SGM4809,SGM4807,SGM3718,SGM4808,SGM3719,74LVC157,SGM48780,SGM48540,SGM48541,SGM48542,SGM48543,SGM37898,SGM51652H,SGM51652D,SGM3720,SGM37891,SGM4812,SGM37892,SGM4810,SGM37895,SGM3749,SGM3747,SGM3748,SGM72204A,SGMNQ40430,SGM

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型号- 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

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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

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