LM431SCIMFX datasheet(3/12 Pages) ONSEMI

3 / 12 page

LM431SA, LM431SB, LM431SC

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ELECTRICAL CHARACTERISTICS (Note 6, Values are at TA = 25°C unless otherwise noted)

Symbol

Parameter

Conditions

LM431SA

LM431SB

LM431SC

Unit

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

VREF

Reference Input

Voltage

VKA = VREF, IKA = 10 mA

2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508

DVREF / DT

Deviation of Refer-

ence Input Voltage

Over− Tempera-

ture

VKA = VREF,

IKA = 10 mA

TMIN

≤ TA ≤ TMAX

SOT−89

SOT−23FL

4.5

17.0

4.5

17.0

4.5

17.0

SOT−23

6.6

DVREF /

DVKA

Ratio of Change in

Reference Input

Voltage to the

Change in Cath-

ode Voltage

IKA =10 mA

DVKA =

10 V−VREF

−1.0

−2.7

−1.0

−2.7

−1.0

−2.7

mV/V

DVKA =

36 V − 10 V

−0.5

−2.0

−0.5

−2.0

−0.5

−2.0

IREF

Reference Input

Current

IKA = 10 mA, R1 = 10 K

W, R

2 =

∞

1.5

4.0

1.5

4.0

1.5

4.0

μA

DIREF / DT

Deviation of Refer-

ence Input Current

Over Full Temper-

ature Range

IKA = 10 mA,

R1 = 10 K

R2 =

∞,

TA = Full Range

SOT−89

SOT−23FL

0.4

1.2

0.4

1.2

0.4

1.2

μA

SOT−23

0.8

2.0

0.8

2.0

0.8

2.0

μA

IKA(MIN)

Minimum Cathode

Current for Regu-

lation

VKA = VREF

0.45

1.00

0.45

1.00

0.45

1.00

IKA(OFF)

Off −Stage Cath-

ode Current

VKA = 36 V, VREF = 0

0.05

1.00

0.05

1.00

0.05

1.00

μA

ZKA

Dynamic Imped-

ance

VKA = VREF

, I

KA = 1 to 100 mA,

≥ 1.0 kHz

0.15

0.50

0.15

0.50

0.15

0.50

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

6. LM431SAI, LM431SBI, LM431SCI: − TA(min) = −40

_C, TA(max) = +85_C

All other pins: − TA(min) = −25

_C, TA(max) = +85_C

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