TL431AC 데이터 시트보기 (PDF) - STMicroelectronics

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TL431AC

PROGRAMMABLE VOLTAGE REFERENCE

STMicroelectronics 

TL431

ELECTRICAL CHARACTERISTICS

Tamb = 25oC (unless otherwise specified)

Symbol

Vref

∆Vref

∆Vref

∆VKA

Iref

∆Iref

Imin

Ioff

|ZKA|

Parameter

Reference Input Voltage - (figure 1)

VKA = Vref, IK = 10mA

Tamb = 25oC

Tmin. ≤ Tamb ≤ Tmax.

Reference Input Voltage Deviation Over

Temperature Range - (figure 1, note1)

VKA = Vref, IK = 10mA, Tmin. ≤ Tamb ≤ Tmax.

Ratio of Change in Reference Input Voltage to

Change in Cathode to Anode Voltage - (figure 2)

IK = 10mA

∆VKA = 10V to Vref

∆VKA = 36V to 10V

Reference Input Current - (figure 2)

IK = 10mA, R1 = 10TkaΩm,bR=22=5o∞C

Tmin. ≤ Tamb ≤ Tmax.

Reference Input Current Deviation Over

Temperature Range - (figure 2)

IK = 10mA, R1 = 10kΩ, R2 = ∞

Tmin. ≤ Tamb ≤ Tmax.

Minimum Cathode Current for Regulation - (figure 1)

VKA = Vref

Off-State Cathode Current - (figure 3)

Dynamic Impedance - (figure 1, note 2)

VKA = Vref, ∆IK = 1 to 100mA, f ≤ 1kHz

TL431I

Min. Typ. Max.

2.44 2.495 2.55

2.41

2.58

7

30

-1.4 -2.7

-1

-2

1.8 4

6.5

0.8 2.5

0.5 1

2.6 1000

0.22 0.5

TL 431AI

Unit

Min. Typ. Max.

V

2.47 2.495 2.52

2.44

2.55

mV

7

30

mV/V

-1.4 -2.7

-1

-2

µA

1.8 4

6.5

µA

0.8 1.2

mA

0.5 0.7

2.6 1000 nA

Ω

0.22 0.5

Notes : 1.

∆Vref is defined as the difference between the maximum and minimum values obtained over the full temperature

range.

∆Vref = Vref max. - Vref min

V ref ma x.

Vre fmin.

T1

T2

Tempe ra tur e

2.

The

dynamic

Impedance

is

defined

as

|ZKA|

=

∆VKA

∆IK

3/9

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