TS431 datasheet(4/14 Pages) STMICROELECTRONICS

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Electrical characteristics

TS431

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Electrical characteristics

Table 3.

Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Vref

Output voltage

VKA = Vref @ Ik = 100μA

TS431

TS431A

TS431B

1.215

1.228

1.234

1.240

1.265

1.252

1.246

ΔVref

Output voltage change (1) (2)

Ik = 100μA, VKA = Vref

0 < Tamb < +70°C

-40 < Tamb < +85°C

-40 < Tamb < +105°C

-40 < Tamb < +125°C

Ratio of change in reference input

voltage to change in cathode to

anode voltage

IK = 10mA

VKA = 6V to Vref

1.8

2.7

mV/V

Iref

Reference input current

IK = 10mA

160

ΔIref

Reference input current deviation

over temperature range

IK=10mA, R1=10kΩ, R2=∝

-40 < Tamb < +85°C

-40 < Tamb < +125°C

160

240

Imin

Minimum cathode current for

regulation

VKA = Vref

μA

Ioff

Off-state cathode current

VKA = 6V, Vref = 0

0.001

0.1

μA

RKA

Static impedance

VKA = Vref, IK = 0.1 to 15mA

0.2

0.4

Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.

ΔVref is defined as the difference between the maximum and minimum values obtained over the full temperature range.

ΔVref = Vref max. - Vref min.

ΔVref

ΔVka

----------------

T e m p er a tur e

Vref m in .

Vref m ax.

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