TL431ACL3T(2017) 查看數據表（PDF） - STMicroelectronics

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TL431ACL3T
(Rev.:2017)

Automotive adjustable voltage reference

STMicroelectronics 

TL431, TL432

3

Electrical characteristics

Electrical characteristics

Symbol

Table 3. TL431C (Tamb = 25 °C unless otherwise specified)

Parameter

TL431C

TL431AC

Unit

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

Vref

Vref

----VV---r-k-e--a-f

Reference input voltage

VKA = Vref, Ik = 10 mA, Tamb = 25 °C

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

2.423 - 2.567 2.453 - 2.537

mV

-

3

17

-

3 15

Ratio of change in reference input voltage to change

in cathode to anode voltage

Ik = 10 mA - VKA = 10 V to Vref

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 = 

Tamb = 25 °C

Tmin  Tamb  Tmax

- 1.8 4

-

1.8

4

µA

-

- 5.2 -

- 5.2

Reference input current deviation overtemperature

Iref

range

Ik = 10 mA, R1 = 10 k, R2 =

Tmin  Tamb  Tmax

µA

- 0.4 1.2 - 0.4 1.2

Imin

Ioff

ZKA

Minimum cathode current for regulation

VKA = Vref

Off-state cathode current

Dynamic impedance(2)

VKA = Vref,  Ik = 1 to 100 mA, f  1 kHZ

-

0.5

1

-

0.5 0.6 mA

- 2.6 1000 - 2.6 1000 nA

- 0.22 0.5

- 0.22 0.5



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

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

DocID4467 Rev 12

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