CJ431K datasheet(2/6 Pages) JIANGSU

Part #	CJ431K

Description	Adjustable Accurate Reference Source

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Manufacturer	JIANGSU [Jiangsu Changjiang Electronics Technology Co., Ltd]

Direct Link	http://www.cj-elec.com/en/

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2 / 6 page

IK

Vref

VKA

Input

Figure 1. Test Circuit for VKA = Vref

Input

IK

R2

Iref

Vref

VKA

R1

Figure 2. Test Circuit for VKA > Vref

V

KA +

V

ref

1

) R1

R2

) I

ref S

R1

Ioff

Input

VKA

Figure 3. Test Circuit for Ioff

ELECTRICAL CHARACTERISTICS (Ta=25

℃ unless otherwise specified)

Parameter

Symbol

Test

conditions

Min

Typ

Max

Unit

Reference lnput Voltage (Fig.1)

Vref

VKA=VREF, IKA=10mA

2.4

70

2.5

20

V

Deviation of

Reference Input Voltage

Over

Temperature (note) (Fig.1)

V

△ ref /T

△

VKA =VREF, IKA =10mA

Tmin≤Ta≤Tmax

4.5

17

mV

V

△ KA

=10V~VREF

-1.0

-2.7

mV/V

Ratio Of Change in Reference lnput

Voltage to the

Change in Cathode

Voltage (Fig.2)

V

△ ref /V

△ KA

IKA=10mA

△

VKA

=36V~ 10V

-0.5

-2.0

mV/V

Reference lnput Current (Fig.2)

lref

IKA= 10mA,R1=10

kΩ

R2=∞

1.5

4

μA

Deviation Of Reference lnput Current

Over Full Temperature Range (Fig.2)

l

△ ref /T

△

lKA=10mA, R1=10

kΩ

R2=∞

0.4

1.2

μA

Minimum

Cathode Current for

Regulation (Fig.1)

IKA(min)

VKA=VREF

0.45

1.0

mA

Off-state

Cathode Current (Fig.3)

IKA(OFF)

VKA=40V,VREF=0

0.05

0.5

μA

Dynamic lmpedance

ZKA

VKA=VREF, lKA=1 to 100mA

f≤1.0

kHz

0.15

0.5

Ω

Note: TMIN=-25

℃ ,TMAX=+125℃

CLASSIFICATION

Vref

Rank

0.5%

1%

Range

2.48

2-2.508

2.47-2.52

TA=-25 to

125℃

www.cj-elec.com

2

J,Aug,2015

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