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LM431ACZ 数据表(PDF) 5 Page - National Semiconductor (TI) |
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LM431ACZ 数据表(HTML) 5 Page - National Semiconductor (TI) |
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5 / 13 page ![]() LM431 Electrical Characteristics (Continued) 01005507 The average temperature coefficient of the reference input voltage, ∝V REF, is defined as: Where: T2 −T1 = full temperature change (0-70˚C). ∝V REF can be positive or negative depending on whether the slope is positive or negative. Example: VDEV = 8.0 mV, VREF = 2495 mV, T2 −T1 = 70˚C, slope is positive. Note 6: The dynamic output impedance, rZ, is defined as: When the device is programmed with two external resistors, R1 and R2, (see Figure 2 ), the dynamic output impedance of the overall circuit, rZ, is defined as: www.national.com 5 |
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