SN431AM datasheet(3/14 Pages) KODENSHI

Part #	SN431AM

Description	Programmable Voltage Reference

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Manufacturer	KODENSHI [KODENSHI_AUK CORP.]

Direct Link	http://www.kodenshi.co.kr

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KSD-I0A013-006

3

SN431/SNF431

◈ Absolute maximum ratings

[Ta=25℃]

Characteristic

Symbol

Rating

Unit

Cathode to Anode voltage

VKA

37

V

Cathode current

IK

150

mA

Reference input current

Iref

10

mA

SOT-23

PD(Note1)

350

SOT-25

PD(Note1)

400

SOT-89

PD(Note1)

500

TO-92

PD(Note2)

625

Power Dissipation

TO-92M

PD(Note2)

400

mW

Junction Temperature

TJ

150

℃

Operating temperature range

Topr

-40 ~ +85

℃

Storage temperature range

Tstg

-55 ~ +150

℃

Note 1 : Mounted on a glass epoxy PCB board (25.4 × 25.4mm).TA=25℃

Note 2 : TA=25℃

◈ Recommended operating conditions

Rating

Characteristic

Symbol

Min.

Max.

Unit

Cathode to Anode voltage

VKA

Vref

36

V

Cathode current

IK

1

100

mA

◈ Electrical Characteristics (Ta=25 , unless otherwise noted.)

℃

Characteristic

Symbol

Condition

Min. Typ. Max.

Unit

SN431B

2.482

2.508

Reference voltage (Fig.1)

Vref

VKA=Vref, IK=10mA

SN431A

2.470

2.495

2.520

V

Reference input voltage

deviation over temperature

(Fig.1, Note1,2)

ΔVref

VKA=Vref , IK=10mA

@ -40˚C ≤ Ta ≤ 85˚C

-

7

30

mV

ΔVref

Ratio of delta reference input

voltage to delta cathode

voltage (Fig.2)

ΔVKA

IK=10mA

Vref≤VKA≤36V

-

-1.0

-2.7

mV/V

Reference current (Fig.2)

Iref

IK=10mA, R1=10KΩ, R2=∞

-

1.8

4.0

μΑ

Reference input current

deviation over temperature

(Fig.2, Note 1,2)

ΔIref

IK=10mA, R1=10KΩ, R2=∞

@ -40˚C ≤ Ta ≤ 85˚C

-

0.4

2.5

μΑ

Minimum cathode current

for regulation

IK(MIN)

VKA=Vref

-

0.35

1.0

mΑ

Off-state cathode current (Fig.3)

IK(off)

VKA=36V, Vref=0V

-

2.7

1000

nA

Dynamic impedance (Fig.1, Note3)

ZKA

VKA=Vref, f ≤ 1.0KHz

1.0mA ≤ IK ≤ 100mA

-

0.15

0.5

Ω

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