SL431B datasheet(3/6 Pages) AUK

3 / 6 page

KSD-I0B003-000

SL431xM

ref

)

(

Note.

1. Ambient temperature range: TLOW = -40℃, THigh = 85℃

2. The deviation parameters △Vref and △Iref are defined as the difference between the maximum value and minimum value

obtained over the full operating ambient temperature range that applied.

The average temperature coefficient of the reference input voltage,

ref

is defined as:

∆

)

℃

(

∆

(

)

℃

ppm

(

ref

can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature, refer to

Fig. 8

Example : △Vref = 30mV and the slope is positive,

△

Vref @ 25℃ = 2.495V

△

Ta = 125℃

3. The dynamic impedance ZKA is defined as:

∆

When the device is operating with two external resistors, R1 and R2, (refer to Fig.2) the total dynamic impedance of the circuit

is given by:

)

(

Fig. 1 Test circuit for VKA=Vref

Fig. 2 Test circuit for VKA>Vref

Fig. 3 Test circuit for IK(off)

Input

IK(off)

Iref

Vref

Input

∆Vref = Vref Max – Vref Min

∆Ta = T2 – T1

Ambient Temperature

Input

℃

ppm

125

)

495

(

)

℃

ppm

(

ref

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