LM431
Electrical Characteristics (Continued)
DS010055-7
The average temperature coefficient of the reference input voltage,
V
, is defined as:
REF
Where:
T
− T = full temperature change (0-70˚C).
1
2
V
can be positive or negative depending on whether the slope is positive or negative.
REF
Example: V
= 8.0 mV, V
= 2495 mV, T − T = 70˚C, slope is positive.
DEV
REF 2 1
Note 6: The dynamic output impedance, r , is defined as:
Z
When the device is programmed with two external resistors, R1 and R2, (see Figure 2 ), the dynamic output impedance of the overall circuit, r , is defined as:
Z
Equivalent Circuit
DS010055-3
5
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