【应用】圣邦微复位芯片SGM706应用于机器视觉，兼具看门狗和掉电检测功能

时间： 2021-12-21 来源：世强

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有客户在之前设计的产品中是使用看门狗芯片和电压检测芯片，组合在一起共同实现复位功能，由于需要更小的产品体积，因此需要将两个产品合并在同一颗封装中使用，对体积和功耗有着较高要求。

本文介绍了一款圣邦微（SGMICRO）SGM706 复位芯片，同时具备看门狗功能和掉电检测功能，采用了SOIC-8封装形式，体积仅5*6mm，且静态功耗电流低至50μA，能够延长产品使用时间。

SGM706机器视觉应用如图1所示：

图1 SGM706机器视觉框图

SGM706主要特点如下：

1、具有精密电源电压监控；

2、复位输出VCC低至1V仍可运行；

3、内置1.25V阈值检测器，可用于断电警告，低电量检测或监测外置电源；

4、比起单独集成电路或分立器件，显著提升了系统可靠性和准确性；

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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- SGM706S-XXS8G/TR,SGM706S-X,SGM706S-Z,SGM706S-MXS8G/TR,SGM706S-TXS8G/TR,SGM706S,SGM706S-ZXS8G/TR,SGM706S-T,SGM706S-SXS8G/TR,SGM706S-RXS8G/TR,SGM706S-S,SGM706S-LXS8G/TR,SGM706S-JXS8G/TR,SGM706S-R,SGM706S-M,SGM706S-L,SGM706S-J

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型号- SGM803-X,SGM809-R,SGM809-ZXN3L/TR,SGM809-S,SGM803-Z,SGM809-T,SGM803-S,SGM809-M,SGM803-T,SGM809,SGM810-JXN3L/TR,SGM809-J,SGM810-LXN3L/TR,SGM810-MXN3L/TR,SGM803-RXN3/TR,SGM803-R,SGM809-L,SGM803,SGM803-L,SGM809-XXN3L/TR,SGM803-M,SGM809-TXN3L/TR,SGM809-SXN3L/TR,SGM810-L,SGM810,SGM803-SXN3L/TR,SGM803-RXN3L/TR,SGM809-JXN3/TR,SGM810-M,SGM810-J,SGM809-Z,SGM810-LXN3/TR,SGM809-TXN3/TR,SGM803-MXN3L/TR,SGM803-TXN3L/TR,SGM803-XXN3L/TR,SGM803-XXN3/TR,SGM803-ZXN3L/TR,SGM809-X,SGM809-MXN3/TR,SGM803-JXN3/TR,SGM810-SXN3L/TR,SGM809-MXN3L/TR,SGM810-ZXN3/TR,SGM803-J,SGM803-TXN3/TR,SGM810-MXN3/TR,SGM810-SXN3/TR,SGM809-SXN3/TR,SGM810-JXN3/TR,SGM809-LXN3/TR,SGM810-XXN3/TR,SGM803-MXN3/TR,SGM809-ZXN3/TR,SGM803-ZXN3/TR,SGM810-TXN3/TR,SGM803-SXN3/TR,SGM803-LXN3L/TR,SGM803-JXN3L/TR,SGM810-XXN3L/TR,SGM810-X,SGM809-RXN3/TR,SGM810-Z,SGM810-T,SGM810-TXN3L/TR,SGM803-LXN3/TR,SGM810-S,SGM810-RXN3/TR,SGM810-ZXN3L/TR,SGM809-RXN3L/TR,SGM810-R,SGM809-LXN3L/TR,SGM809-JXN3L/TR,SGM810-RXN3L/TR,SGM809-XXN3/TR

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SGMICRO微处理器复位芯片选型表

SGMICRO微处理器复位芯片包含复位芯片、看门狗和计时器和电压检测器；手动复位、看门狗复位、电压排序，推挽/开漏输出，复位时间可调，最大10S复位时，复位电压可调。

产品型号	品类	Package	Reset Active Timeout Period (ms)	SupplyCurrent (μA)	VCC (Max)(V)	VCC (Min)(V)	Manual Reset
SGM708	Reset ICs	SOIC-8	200	20	5.5	1	Manual Reset

选型表 - SGMICRO 立即选型

SGMICRO（圣邦微）复位芯片+看门狗优选推荐表

型号- SGM809B-SXN3LG/TR,SGM820A-2.8XTDB8G/TR,SGM820B-1.7XTDE8G/TR,SGM811-LXN5/TR,SGM809-TXN3/TR,SGM803-XXN3/TR,SGM706B-SXMS8G/TR,SGM810B-RXN3LG/TR,SGM820B-4.6XTDE8G/TR,SGM803B-SXN3LG/TR,SGM810-SXN3L/TR,SGM811-ZXN5/TR,SGM810-MXN3/TR,SGM706B-MXS8G/TR,SGM706B-LXMS8G/TR,SGM820A-3.0XTDB8G/TR,SGM812B-TXKA4G/TR,SGM706-MYS8G/TR,SGM809-SXN3/TR,SGM811B-TXKA4G/TR,SGM809-LXN3/TR,SGM811-JXN5/TR,SGM820B-2.8XTDB8G/TR,SGM706-SYMS8G/TR,SGM803B-SXN3G/TR,SGM823-SXN5G/TR,SGM803B-RXN3G/TR,SGM803B-JXN3LG/TR,SGM810B-SXN3LG/TR,SGM803-LXN3L/TR,SGM706B-RXMS8G/TR,SGM820B-1.6XTDB8G/TR,SGM809-RXN3/TR,SGM820B-1.6XTDE8G/TR,SGM820A-2.7XTDB8G/TR,SGM811-RXN5/TR,SGM809-RXN3L/TR,SGM809-JXN3L/TR,SGM812-MXKA4/TR,SGM820A-1.7XTDB8G/TR,SGM810-RXN3L/TR,SGM803B-RXN3LG/TR,SGM810B-SXN3G/TR,SGM820B-4.8XTDE8G/TR,SGM809B-JXN3G/TR,SGM809B-TXN3LG/TR,SGM812B-SXKA4G/TR,SGM823A-VXN5G/TR,SGM706B-TXS8G/TR,SGM706-LYS8G/TR,SGM706B-LXS8G/TR,SGM809-XXN3/TR,SGM706-TYS8G/TR,SGM809B-RXN3G/TR,SGM810B-JXN3G/TR,SGM811-JXKA4/TR,SGM809-ZXN3L/TR,SGM809B-TXN3G/TR,SGM811B-SXKA4G/TR,SGM811-LXKA4/TR,SGM812-TXN5/TR,SGM809B-SXN3G/TR,SGM811-MXKA4/TR,SGM706B-JXMS8G/TR,SGM812B-RXKA4G/TR,SGM809-XXN3L/TR,SGM809B-MXN3LG/TR,SGM803B-MXN3LG/TR,SGM809-TXN3L/TR,SGM809-SXN3L/TR,SGM803-SXN3L/TR,SGM811-RXKA4/TR,SGM811-SXKA4/TR,SGM811-TXKA4/TR,SGM820B-2.8XTDE8G/TR,SGM803B-JXN3G/TR,SGM803-XXN3L/TR,SGM803-TXN3L/TR,SGM803-MXN3L/TR,SGM803-ZXN3L/TR,SGM809-MXN3/TR,SGM823-LXN5G/TR,SGM811-XXKA4/TR,SGM811-ZXKA4/TR,SGM811C-RXKA4G/TR,SGM810-SXN3L-TR,SGM823-RXN5G/TR,SGM809-MXN3L/TR,SGM810B-RXN3G/TR,SGM803-TXN3/TR,SGM820B-3.0XTDB8G/TR,SGM810B-TXN3G/TR,SGM811-SXN5/TR,SGM809B-MXN3G/TR,SGM821GTDI6G/TR,SGM706B-SXS8G/TR,SGM812-LXKA4/TR,SGM706-SYS8G/TR,SGM812-TXKA4/TR,SGM706B-RXS8G/TR,SGM809B-RXN3LG/TR,SGM811-MXN5/TR,SGM809-ZXN3/TR,SGM810B-JXN3LG/TR,SGM803-ZXN3/TR,SGM823-TXN5G/TR,SGM812-LXN5/TR,SGM820A-2.8XTDE8G/TR,SGM803B-TXN3G/TR,SGM811B-RXKA4G/TR,SGM820A-3.1XTDB8G/TR,SGM803-SXN3/TR,SGM811-TXN5/TR,SGM803B-MXN3G/TR,SGM803-JXN3L/TR,SGM810B-TXN3LG/TR,SGM820A-1.6XTDE8G/TR,SGM803B-TXN3LG/TR,SGM706B-TXMS8G/TR,SGM820A-1.6XTDB8G/TR,SGM809-LXN3L/TR,SGM706B-JXS8G/TR,SGM706B-MXMS8G/TR,SGM821GN6G/TR,SGM810B-MXN3G/TR,SGM810B-MXN3LG/TR,SGM706-RYS8G/TR,SGM820B-2.7XTDE8G/TR

对照表 - SGMICRO

【应用】国产看门狗芯片SGM706-MYS8G/TR用于可视智能终端，外围电路简单使用方便

笔者设计的一款智能室内终端，为了提高系统的稳定性，在系统出现异常时能够自主恢复，需要增加外部看门狗电路。经过对比选型，最终选用圣邦微电子的看门狗芯片SGM706-MYS8G/TR，功能强大、外围电路简单、使用方便可靠等特点，可有效提高系统的可靠性和抗干扰能力。

2020-11-08 - 应用方案代理服务技术支持批量订货

具有看门狗定时器和手动复位功能的SGM706B 8引脚微处理器监控电路

描述- SGM706B是一款集成的微处理器监控电路，具有看门狗定时器和手动复位功能。该器件能够在电源开启、关闭或电压降低时重置系统，即使在VCC低至1V时也能正常工作。它提供独立的看门狗监测电路，当WDI输入在超过1.6秒没有切换时激活。SGM706B适用于多种封装类型，并具备超低供电电流、精确的供电电压监控、保证在VCC等于1V时的nRESET有效、200毫秒的重置脉冲宽度等特点。

型号- SGM706B-RXS8G/TR,SGM706B-JXMS8G/TR,SGM706B-MXUDW8G/TR,SGM706B-JXUDW8G/TR,SGM706B-R,SGM706B-SXUDW8G/TR,SGM706B-T,SGM706B-S,SGM706B-J,SGM706B-LXUDW8G/TR,SGM706B-SXMS8G/TR,SGM706B-RXUDW8G/TR,SGM706B-RXMS8G/TR,SGM706B-M,SGM706B-L,SGM706B-TXMS8G/TR,SGM706B-JXS8G/TR,SGM706B-MXMS8G/TR,SGM706B-TXUDW8G/TR,SGM706B-MXS8G/TR,SGM706B,SGM706B-TXS8G/TR,SGM706B-LXMS8G/TR,SGM706B-LXS8G/TR,SGM706B-SXS8G/TR