【经验】圣邦微数字温度传感器SGM452在制冷机温控器上设计的4点注意事项

时间： 2022-06-30 来源：世强

技术问答

制冷机需要温控器实时监测当前的制造的冷气是否在指定的温度范围内，而国产温度传感器圣邦微的SGM452可以提供一个性价比较高的温度监测解决方案。如何使用SGM452进行制冷机温控器的设计，在这里有几点需要注意的事项。

1、注意确认I²C地址。SGM452的I²C地址前四位是固定的，第三位可以通过A0，A1，A2接地或者接+Vs来改变I²C地址，这样做的好处是可以在一条IIC总线上同时接入多个SGM452而不会因为从机地址相同导致通信失败。

2、SGM452是数字温度传感器，虽然其内I²C部分集成了低通滤波器，但还是建议进行I2C总线的layout要远离开关电源等相关减少噪声的设计。

3、SGM452要避开发热源，大功率的发热器件会影响温度传感器的测量环境温度的准确性。

4、灵活使用OS输出的比较器或中断这两种模式，可以通过调节温度阈值来快速调节制冷机的目标温度范围，非常适用于温控器设计。

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【经验】圣邦微温度传感器SGM452与LM75A的寄存器的不同点及程序兼容性探讨

圣邦微温度传感器SGM452与LM75A在硬件上可以pin to pin替换，SGM452可以直接延用LM75A的程序，而不用改动。

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圣邦微电子（北京）股份有限公司专注于高性能、高品质模拟集成电路的研发和销售，为工业、汽车、通信、消费类和医疗市场的广泛应用提供创新解决方案，是A股上市首家专注于模拟芯片领域的半导体企业，也是2008年至今唯一连续获评“十大中国IC设计公司”的企业。

运算放大器比较器仪表放大器电流检测放大器音频功率放大器视频缓冲器线性驱动器温度传感器 ADC DAC 电平转换逻辑器件电压基准源模拟开关射频开关静电保护 LDO DC/DC升压 DC/DC降压 DC/DC升降压背光驱动监控芯片看门狗过压保护负载开关电池管理芯片电池保护马达驱动电机驱动 MOS驱动高边驱动低边驱动 MOSFET 氮化镓驱动车规基准源车规低噪声运算车规高速运算车规高精度运放车规电流检测放大器车规比较器车规电平转换车规监控电路车规看门狗车规逻辑器件车规ADC 车规DC/DC 车规LDO 车规门驱动车规高边驱动车规低边驱动 TEC控制器 APD偏置升压芯片 EML驱动负压电荷泵硅光控制器AFE 集成电感电源芯片

授权代理商 - 世强先进（深圳）科技股份有限公司线上商城技术资料

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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.

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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

商品及供应商介绍 - SGMICRO - 2023/3/25 PDF 中文下载

圣邦微在光模块中应用的相关产品，涵盖TEC/APD/EML驱动、高性能运放、DCDC等｜视频

比较全面的展示了圣邦微在光模块中应用的相关产品，总的来说目前是有20--30个光模块相关产品。主要涵盖了TEC＼APD＼EML驱动这样的专用器件，高性能运放、电源相关LDO＼DCDC、负压，负载开关以及温度传感器等产品。

新产品发布时间 : 2023-11-17

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型号- SGM450A2XN3LG/TR,SGM450,SGM450A2XC5G/TR

数据手册 - SGMICRO - REV. A - JUNE 2021 PDF 英文下载查看更多版本

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圣邦微国产精密运行SGM8252A，是一款一款高精度、低噪声、轨到轨输出运算放大器，在功能及性能上完全媲美ADI的OP2177，而且，封装及管脚相互兼容，完全可以做到PIN2PIN替换，使产品实现更高的性价比。

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型号- SGM51242R8,SGM5353-16,SGM8634C,SGM71612R82Z,SGM71612R81ZXG/TR,SGM51652H8,SGM58200,SGM61720,SGM5209-14,SGM58201,SGM71612R82,SGM51652H4,SGM42403,SGM452,SGM5347-12,SGM51652H4XTS38G/TR,SGM51652HXTS16G-S/TR,SGM58602,SGM71612R82M,SGM2048,SGM58600,SGM71612R81,SGM58601,SGM5347-10,SGM58031Q,SGM42402,SGM42401,SGM8T245XS,SGM71612R81Z,SGM48751X,SGM12UB1D2,SGM51652HX,SGM4029A,SGM6143X,SGM4573,SGM7SZ244,SGM8253,SGM2033,SGM51242R4,74LVC245A,SGM51652H4XTS38G-S/TR,SGMXXXXX,SGM51242R2,SGM58600XTRL20G/TR,SGM5351-16,SGM61030,SGM51622S8XLFH64G/TR,SGM4875XX,SGM58600XSS20G/TR,SGM25701,SGM8270,SGM51610S,SGM58601XSS28G/TR,SGM2050,SGM58031,SGM5200,SGM862,SGM71612R8XX,SGM6130X,SGM2054,SGM860,SGM8277,SGM,SGM51622H,SGM204X,SGM2059,SGM51622D,SGM51610C,SGM89XB,SGM5202-14,74AHC14,SGM61410,SGM5353,SGM51613HXTS16G/TR,SGM71612R8,SGM51652HBXTS38G-S/TR,74AHC08,SGM61411,SGM5208-14,SGM8610,SGM51652H,SGM58601XTQK28GITR,SGM71612R81ZXTSG16G/TR,SGM51652D,SGM5348-10,SGM51652S8XLFH64G/TR,SGM5348-8,SGM5348-12,SGM5349,SGM5355-16,GRM2030,SGM51613HXTQE16G/TR,SGM823,SGM61630,SGM71612R81ZXTS16G/TR,SGM51613H,SGM51622S8,SGM5349-16,SGM8249,SGM51613D,SGM8255B,SGM5860X,SGM5352-16,SGM05FB4D2,SGM4027A,SGM51652H8XTS38G/TR,SGM4551,SGM05FB8D2,SGM5200Q,SGM51652S8,SGM5347-8,SGM80XB

选型指南 - SGMICRO - May 2024 PDF 英文下载