KA431 datasheet(3/11 Pages) ONSEMI

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Electrical Characteristics

Values are at TA = 25°C unless otherwise noted.

Note:

1. TMIN = -25°C, TMAX = +85°C.

Symbol

Parameter

Conditions

KA431

KA431A

KA431L

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

ΔVREF/

ΔT

Deviation of

Reference

Input Voltage

Over-

Temperature

VKA = VREF,

IKA =10 mA

TMIN ≤ TA ≤ TMAX

(1)

4.5

17.0

4.5

17.0

4.5

17.0

ΔVREF/

ΔVKA

Ratio of

Change in

Reference

Input Voltage

to the

Change in

Cathode

Voltage

IKA =

10 mA

ΔVKA =

10V-VREF

-1.0

- 2.7

-1.0

- 2.7

-1.0

-2.7

mV / V

ΔVKA =

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

Ω, R2 = ∞

1.5

4.0

1.5

4.0

1.5

4.0

μA

ΔIREF/ ΔT

Deviation of

Reference

Input Current

Over Full

Temperature

Range

IKA = 10 mA,

R1 = 10 k

Ω, R2 = ∞

TA = Full Range

0.4

1.2

0.4

1.2

0.4

1.2

μA

IKA(MIN)

Minimum

Cathode

Current for

Regulation

VKA = VREF

0.45

1.00

0.45

1.00

0.45

1.00

IKA(OFF)

Off - Stage

Cathode

Current

VKA = 36 V,

VREF = 0

0.05

1.00

0.05

1.00

0.05

1.00

μA

ZKA

Dynamic

Impedance

VKA = VREF,

IKA =1 to 100 mA

≥ 1.0 kHz

0.15

0.50

0.15

0.50

0.15

0.50

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