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[参考译文] BQ25619:℃设置 RT1和 RT2、使 IC 处于15~45 μ A 正常充电的温度范围内、而不是处于充电暂停时的温度范围内?是否有 BQ25619 TS NTC 的计算表?

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Other Parts Discussed in Thread: BQ25619

请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/889634/bq25619-how-to-set-rt1-and-rt2-so-that-the-ic-in-the-temperature-range-of-15-45-normal-charging-not-in-this-range-on-the-suspension-of-charging-is-there-a-calculation-table-for-bq25619-ts-ntc

器件型号:BQ25619

如何设置 RT1和 RT2、以便 IC 处于15~45℃正常充电的温度范围内、而不是处于充电暂停时的温度范围内?是否有 BQ25619 TS NTC 的计算表?


R25         10     k 欧姆+/-      1%           
 B (25/50)     3380      K +/-        1%           
  温度       R-LOW     R-中心    R-HIGH 
 (deg.C)    (k Ω)    (k Ω)    (k Ω) 
   -40      188.0202   195.6520   203.5731 
   -39      177.8044   184.9171   192.2951 
   -38      168.2141   174.8452   181.7195 
   -37      159.2069   165.3910   171.7981 
   -36      150.7435   156.5125   162.4860 
   -35      142.7877   148.1710   153.7418 
   -34      135.3055   140.3304   145.5274 
   -33      128.2659   132.9576   137.8071 
   -32      121.6397   126.0215   130.5481 
   -31      115.4001   119.4936   123.7198 
   -30      109.5221   113.3471   117.2940 
   -29      103.9894   107.5649   111.2522 
   -28      98.7725    102.1155   105.5611 
   -27      93.8512    96.9776    100.1981年 
   -26      89.2071    92.1315    95.1423 
   -25      84.8227    87.5588    90.3741 
   -24      80.6819    83.2424    85.8755 
   -23      76.7698    79.1663    81.6295 
   -22      73.0722    75.3157    77.6204 
   -21      69.5761    71.6768    73.8336 
   -20      66.2694    68.2367    70.2554 
   -19      63.1477    64.9907    66.8807 
   -18      60.1923    61.9190    63.6889 
   -17      57.3933    59.0113    60.6689 
   -16      54.7415    56.2579    57.8105 
   -15      52.2283    53.6496    55.1040 
   -14      49.8456    51.1779    52.5406 
   -13      47.5859    48.8349    50.1117 
   -12      45.4422    46.6132    47.8097 
   11      43.4078    44.5058    45.6271 
   -10      41.4765    42.5062    43.5570 
    -9      39.6345    40.5997    41.5843 
    8      37.8855    38.7905    39.7131 
    7      36.2244    37.0729    37.9374 
    -6      34.6461    35.4417    36.2519 
    -533.1462          33.8922    34.6515 
    -4      31.7202    32.4197    33.1313 
    -330.3641          31.0200    31.6869 
    -2      29.0740    29.6890    30.3140 
    -1      27.8465    28.4231    29.0088 
    0       26.6780    27.2186    27.7675 
    1       25.5690    26.0760    26.5904 
    2       24.5123    24.9877    25.4698 
    3       23.5052    23.9509    24.4026 
    4       22.5450    22.9629    23.3861 
    5       21.6294    22.0211    22.4175 
    6       20.7560    21.1230    21.4944 
    7       19.9227    20.2666    20.6143 
    8       19.1273    19.4495    19.7751 
    9       18.3680    18.6698    18.9745 
    10      17.6430    17.9255    18.2107 
    11      16.9494    17.2139    17.4807 
    12      16.2870    16.5344    16.7840 
    13      15.6541    15.8856    16.1189 
    14      15.0493    15.2658    15.4838 
    15      14.4712    14.6735    14.8772 
    16      13.9184    14.1075    14.2977 
    17      13.3898    13.5664    13.7439 
    18      12.8841    13.0489    13.2145 
    19      12.4002    12.5540    12.7084 
    20      11.9371    12.0805    12.2244 
    21      11.4945    11.6281    11.7621 
    22      11.0703    11.1947    11.3195 
    23      10.6637    10.7795    10.8955 
    24      10.2738    10.3815    10.4892 
    25       9.9000    10.0000    10.1000 
    26       9.5343     9.6342     9.7342 
    27       9.1838     9.2835     9.3833 
    28       8.8477     8.9470     9.0465 
    29       8.5254     8.6242     8.7234 
    30       8.2162     8.3145     8.4132 
    31       7.9204     8.0181     8.1162 
    32       7.6367     7.7337     7.8312 
    33       7.3647     7.4609     7.5576 
    34       7.1038     7.1991     7.2951 
    35       6.8534     6.9479     7.0430 
    36       6.6131     6.7067     6.8009 
    37       6.3825     6.4751     6.5683 
    38       6.1611     6.2526     6.3449 
    39       5.9485     6.0390     6.1302 
    40       5.7443     5.8336     5.9238 
    41       5.5474     5.6357     5.7248 
    42       5.3582     5.4454     5.5333 
    43       5.1764     5.2623     5.3492 
    44       5.0015     5.0863     5.1720 
    45       4.8333     4.9169     5.0015 
    46       4.6715     4.7539     4.8373 
    47       4.5159     4.5971     4.6793 
    48       4.3661     4.4461     4.5271 
    49       4.2220     4.3008     4.3806 
    50       4.0833     4.1609     4.2395 
    51       3.9498     4.0262     4.1036 
    52       3.8213     3.8964     3.9727 
    53       3.6975     3.7714     3.8465 
    54       3.5783     3.6510     3.7249 
    55       3.4634     3.5350     3.6076 
    56       3.3527     3.4231     3.4946 
    57       3.2461     3.3152     3.3856 
    58       3.1432     3.2113     3.2804. 
    59       3.0441     3.1110     3.1790 
    60       2.9486     3.0143     3.0812 
    61       2.8578     2.9224     2.9881 
    62       2.7703     2.8337     2.8984 
    63       2.6858     2.7482     2.8118 
    64       2.6044     2.6657     2.7282 
    65       2.5259     2.5861     2.6476 
    66       2.4501     2.5093     2.5697 
    67       2.3770     2.4351     2.4945 
    68       2.3064     2.3635     2.4218 
    69       2.2382     2.2943     2.3517 
    70       2.1724     2.2275     2.2839 
    71       2.1086     2.1627     2.2181 
    72       2.0469     2.1001     2.1545 
    73       1.9873     2.0396     2.0930 
    74       1.9298     1.9811     2.0335 
    75       1.8741     1.9245     1.9761 
    76       1.8204     1.8698     1.9205 
    77       1.7684     1.8170     1.8667 
    78       1.7181     1.7658     1.8147 
    79       1.6695     1.7164     1.7644 
    80       1.6225     1.6685     1.7157 
    81       1.5772     1.6224     1.6687 
    82       1.5334     1.5777     1.6232 
    83       1.4909     1.5345     1.5792 
    84       1.4499     1.4927     1.5365 
    85       1.4101     1.4521     1.4952 
    86       1.3717     1.4129     1.4552 
    87       1.3344     1.3749     1.4165 
    88       1.2984     1.3381     1.3790 
    89       1.2635     1.3025     1.3426 
    90       1.2296     1.2680     1.3074 
    91       1.1966     1.2343     1.2730 
    92       1.1647     1.2016     1.2396 
    93       1.1337     1.1700     1.2073 
    94       1.1037     1.1393     1.1760 
    95       1.0746     1.1096     1.1456 
    96       1.0464     1.0807     1.1161. 
    97       1.0190     1.0528     1.0875 
    98       0.9925     1.0256     1.0598 
    99       0.9668     0.9993     1.0328 
   100       0.9419     0.9738     1.0067 
   101       0.9179     0.9492     0.9816 
   102       0.8946     0.9254     0.9571 
   103       0.8720     0.9022     0.9334 
   104       0.8501     0.8798     0.9104 
   105       0.8288     0.8580     0.8881 
   106       0.8081     0.8368     0.8664 
   107       0.7881     0.8162     0.8453 
   108       0.7686     0.7963     0.8248 
   109       0.7497     0.7769     0.8049 
   110       0.7313     0.7580     0.7856 
   111       0.7135     0.7397     0.7668 
   112       0.6962     0.7219     0.7485 
   113       0.6793     0.7046     0.7308 
   114       0.6630     0.6878     0.7135 
   115       0.6471     0.6715     0.6968 
   116       0.6316     0.6556     0.6805 
   117       0.6166     0.6402     0.6646 
   118       0.6020     0.6252     0.6492 
   119       0.5878     0.6106     0.6342 
   120       0.5740     0.5964     0.6196 
   121       0.5606     0.5826     0.6054 
   122       0.5476     0.5592     0.5916 
   123       0.5349     0.5562     0.5782 
   124       0.5226     0.5435     0.5651 
   125       0.5106     0.5311     0.5524 

 

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

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      该器件根据行业标准 JEITA 准则采用 JEITA。 通过调整 RT1和 RT2电阻器的大小、您可以控制 T1和 T5阈值对应的温度。 在数据表中、它们采用的示例是设置 T1 = 0C 和 T5 = 60C。 您可以根据预期的 T1和 T5阈值(根据您选择的热敏电阻)调整 RT1和 RT2、然后计算 T2 T3 T4阈值。