SPX3431 datasheet(3/5 Pages) SIPEX

3 / 5 page

Rev. 10/25/00

SPX3431

ELECTRICAL CHARACTERISTICS are guaranteed over full junction temperature range (0°C to 105°C). Ambient

temperature must be derated based on power dissipation and package thermal characteristics. The conditions are: VKA = VREF and

IK = 10mA, unless otherwise specified.

SPX3431A

SPX3431

Parameter

Symbol

Test Condition

Min

Typ

Max

Min

Typ

Max

Unit

Circuit

Reference Voltage

VREF

TA = 25

° C

2.490

2.503

2.515

2.475

2.500

2.525

Over Temp.

2.480

2.530

2.450

2.550

∆VREF with Temp*

0.07

0.20

0.07

0.02

mV/

°C

Ratio of Change in VREF

∆VREF

VREF to 10 V

-2.7

-1.01

-2.7

-1.01

to Cathode Voltage

∆VK

10 V 10 18 V

-2

-0.4

0.3

-2

-0.4

0.3

Reference Input Current

IREF

0.7

µA

IREF Temp Deviation

∆IREF

0.4

1.2

0.4

1.2

µA

Min IK for Regulation

IK (MIN)

VREF = 0V

VKA = 18V

0.4

Off State Leakage

IK (OFF)

0.04

500

0.04

500

Dynamic Output

Impedance

ZKA

f < 1 kHz IK =

1 to 100mA

0.15

0.5

0.15

0.5

Ω

Calculating Average Temperature Coefficient (TC)

MV/V

∆Τ

0.019 mV/°C

∆V

REF

-10

-5

0.2

2000

Temperature (°C)

0.001 %/°C

7.6 ppm/°C

90 105

TC in mV/°C =

∆V

REF (mV)

∆T

TC in %/°C =

REF at 25°C

∆T

∆V

REF

) x 100

TC in ppm/°C =

REF at 25°C

∆T

∆V

REF

) x 106

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