NJM1431A

- 4 -

Ver.2004-01-13

■TYPICAL CHARACTERISTICS

2.4

2.42

2.44

2.46

2.48

2.5

0.1

1

10

100

Reference Voltage vs. Cathode Current

(V

KA

=V

REF

Cathode Current I

K

(mA)

2.44

2.45

2.46

2.47

2.48

2.49

-50 -25

0

25

50 75 100 125 150

Ambient Temperature Ta (

Reference Voltage vs. Temperature

(V

KA

=V

REF

, I

0

0.5

1

1.5

2

-50 -25

0

25

50 75 100 125 150

Ambient Temperature Ta (

Reference Input Current vs. Temperature

(I

K

=10mA, R1=10k

Ω, R2= )

2.44

2.45

2.46

2.47

2.48

2.49

010

20

30

40

Reference Voltage vs. Cathode Voltage

(I

K

=10mA, R1=Variable, R2=10k

Cathode Voltage V

KA

(V)

0

20

40

60

80

100

0.01

0.1

1

10

Aunstable Operaion

Region

Safety Operating Boundary Condition

(V

KA

=V

REF

, C

OUT

Output Capacitor C

OUT

(uF)

Stable

Operaion

Region

0

0.1

0.2

0.3

0.4

0.5

0.001

0.01

0.1

1

10

100

Dynamic Impedance

(I

K

=1 to 100mA, V

KA

=V

REF

Cathode Current Frequency f (kHz)

Note) Oscillation might occur while operating within the range

of safety curve.

So that, it is necessary to make ample margins by

taking considerations of fluctuation of the device.