AP431S datasheet(5/17 Pages) DIODES

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AP431S

Document number: DS39195 Rev. 1 - 2

5 of 17

www.diodes.com

January 2017

AP431S

Electrical Characteristics (TA = +25°C, unless otherwise specified.)

Symbol

Parameter

Test

Circuit

Conditions

Min

Typ

Max

Unit

VREF

Reference

Voltage

0.5%

VKA = VREF, IKA = 1mA (AP431SA)

2.487

2.500

2.512

VKA = VREF, IKA = 1mA (AP431SHA)

2.483

2.495

2.507

1.0%

VKA = VREF, IKA = 1mA (AP431SB)

2.475

2.500

2.525

VKA = VREF, IKA = 1mA (AP431SHB)

2.470

2.495

2.520

VREF

Deviation of Reference

Voltage Over Full

Temperature Range

VKA = VREF

IKA = 1mA

0 to +70°C

—

-40 to +85°C

—

-40 to +125°C

—

VREF

VKA

Ratio of Change in

Reference Voltage to the

Change in Cathode

Voltage

IKA = 1mA

VKA = 10V to VREF

—

-1.0

-2.7

mV/V

VKA = 36V to 10V

—

-0.5

-2.0

IREF

Reference Current

IKA = 1mA, R1 = 10kΩ, R2 = 

—

0.2

0.5

µA

IREF

Deviation of Reference

Current Over Full

Temperature Range

IKA = 1mA, R1 = 10kΩ

R2 =

 TA = -40 to +125°C

—

0.1

0.3

µA

IKA (Min)

Minimum Cathode Current

for Regulation

VKA = VREF

—

100

µA

IKA (Off)

Off-state Cathode Current

VKA = 36V, VREF = 0

—

0.05

1.0

µA

ZKA

Dynamic Impedance

VKA = VREF,

IKA = 1 to 100mA, f 1.0kHz

—

0.1

0.3

Ω



θJC

Thermal Resistance

—

TO92

—

°C/W

SOT89

—

SOT23

—

140

—

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