TL431ACCT(2017) 데이터 시트보기 (PDF) - STMicroelectronics

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TL431ACCT
(Rev.:2017)

Automotive adjustable voltage reference

STMicroelectronics 

TL431, TL432

Electrical characteristics

Symbol

Table 5. TL431IY (Tamb = 25 °C unless otherwise specified)

Parameter

TL431IY

TL431AIY

Unit

Min. Typ. Max. Min. Typ. Max.

Vref

Vref

Reference input voltage

VKA = Vref, Ik = 10 mA

Tmin  Tamb  Tmax

Reference input voltage deviation overtemperature

range(1)

VKA = Vref, Ik = 10 mA, Tmin Tamb  Tmax

2.44 2.495 2.55 2.47 2.495 2.52 V

2.41 - 2.58 2.44 - 2.55

-

7

30

-

7 30 mV

Ratio of change in reference input voltage to change

----VV---r-k-e--a-f

in cathode to anode voltage

Ik = 10 mA, VKA = 10 V to Vref

Ik = 10 mA, VKA = 36 V to 10 V

-2.7 -1.4 - -2.7 -1.4 - mV/V

-2 -1

-

-2 -1

-

Reference input current

Iref Ik = 10 mA, R1 = 10 k, R2 = 

Tmin  Tamb  Tmax

- 1.8 4

- 1.8 4 µA

-

- 6.5 -

- 6.5

Reference input current deviation overtemperature

Iref

range

Ik = 10 mA, R1 = 10 k, R2 = Tmin  Tamb 

Tmax

- 0.8 2.5 - 0.8 1.2 µA

Imin

Minimum cathode current for regulation

VKA = Vref

- 0.5 1

- 0.5 0.6 mA

Ioff

ZKA

Off-state cathode current

Tmin  Tamb  Tmax

Dynamic impedance(2)

VKA = Vref,  Ik = 1 to 100 mA, F  1 kHz

- 2.6 1000 - 2.6 1000 nA

-

3000 -

3000

- 0.22 0.5 - 0.22 0.5 

1. See definition of Section : Reference input voltage deviation overtemperature range below.

2. The dynamic impedance is defined as ZKA= -----V---I-K-k---A--

Reference input voltage deviation overtemperature range

Vref is defined as the difference between the maximum and minimum values obtained over

the full temperature range.

Vref = Vref max - Vref min

Figure 6. Reference input voltage deviation overtemperature range

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