LM431L データシートの表示（PDF） - TAITRON Components Incorporated

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LM431L

Shunt Regulator

TAITRON Components Incorporated 

Shunt Regulator

LM431L

Electrical Characteristics (TA=25ºC, unless otherwise specified)

Symbol

VREF

Description

Reference Input

Voltage

LM431L

Min. Typ. Max.

LM431LA

Min. Typ. Max.

LM431LB

Min. Typ. Max.

Unit

Test

Circuit

Conditions

1.222 1.240 1.258 1.228 1.240 1.252 1.234 1.240 1.246 V

Fig.1

VKA=VREF,IKA=10mA

0-70° C

-

-

-

-

2

1-

-

2

10

Reference

∆VREF

Input

Voltage

-40-85

°C

-

7.0

20

-

3

10

-

3

10

mV

Fig.1

(Note1)

VKA=VREF,IKA=10mA

Deviation

-40-125

°C

-

-

-

-

4

15

-

4

15

Ratio of Change in

Reference Input

∆VREF/∆VKA Voltage to Change in

Cathode to Anode

-

-0.6 -1.5

-

-0.5 -1.5

-

-0.5 -1.5 mV/V Fig.2

IKA=

10mA

∆VKA=

VKA(max)

~VREF

Voltage

IREF

Reference

Input

Current

Ta=25°

C

-

0.15 0.3

-

0.15 0.4

-

0.15 0.4

µA

Fig.2

IKA=10mA, R1=10KΩ,

R2=∞

∆IREF

Reference Input

Current Deviation

Over Temperature

Range

-

0.05 0.08

-

0.1 0.4

-

0.1

0.4

µA

Fig.2

IKA=10mA, R1=10KΩ,

R2=∞

IMIN

Min. Cathode Current

For Regulation

-

55

80

-

55

80

-

55

80

µA

Fig.1

VKA=VREF

IOFF

ZKA

Off-State Cathode

Current

Dynamic Impedance

-

2.6 1000

-

40 100

-

40 100

nA

Fig.3

-

-

-

-

10

50

-

10

50

VKA= VKA(max),

VREF=0V

VKA=6V, VREF=0V

-

0.22 0.4

-

0.05 0.15

-

0.05 0.15

Ω

Fig.1

(Note2)

VKA=VREF,

IKA=1.0mA~ IKA(max),

f≤1.0KHz

Fig.1- Test Circuit for VKA=VREF

Fig.2- Test Circuit for VKA>VREF

www.taitroncomponents.com

Rev. A/DX 2007-06-04

Page 4 of 13

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