LM431

SNVS020H – MAY 2000 – REVISED JANUARY 2016

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Electrical Characteristics (continued)

TA = 25°C unless otherwise specified

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VZ = VREF, LM431A,

0.75

Frequency = 0 Hz (Figure 6 )

rZ

Dynamic output impedance(2)

Ω

VZ = VREF, LM431B, LM431C

0.5

Frequency = 0 Hz (Figure 6 )

(2)

The dynamic output impedance, rZ, is defined as:

When the device is programmed with two external resistors, R1 and R2, (see Figure 7), the dynamic output impedance of the overall

circuit, rZ, is defined as:

6

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