TL431 Просмотр технического описания (PDF) - IK Semicon Co., Ltd

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Компоненты Описание

производитель

TL431

Programmable Precision Reference

IK Semicon Co., Ltd 

TL431

RECOMMENDED OPERATING CONDITIONS

Characteristic

Cathode Voltage

Cathode Current

Symbol

VKA

IK

Test Condition

Min

VREF

0.5

Typ Max Unit

40

V

100 mA

ELECTRICAL CHARACTERISTICS

(Ta = 25oC, VKA = VREF, IK = 10mA unless otherwise specified)

Characteristic

Reference Input Voltage

Symbol

VREF

Deviation of Reference Input

Voltage Over Full Temperature

Range

Ratio of Change in Reference Input

Voltage to the Change in Cathode

Voltage

Reference Input Current

Deviation of Reference Input

Current Over Full Temperature

Range

Minimum Cathode Current for

Regulation

Off-State Cathode Current

Dynamic Impedance

VREF(dev)

ΔV REF

ΔV K A

IREF

IREF(dev)

IK(min)

IK(off)

ZKA

Test Condition

Min

Typ

VKA = VREF, IK = 10mA

TL431 (2%)

TL431-A (1%)

TL431-C (0.5%)

Tmin ≤ Ta ≤ Tmax

2.440

2.470

2.482

2.495

2.495

2.495

3

Max

2.550

2.520

2.508

17

Unit

V

MV

ΔVKA = 10V-VREF

ΔVKA = 36V- 10V

R1 = 10KΩ, R2 = ∞

R1 = 10KΩ, R2 = ∞

-1.4

-2.7

mV/V

-1.0

-2.0

1.8

4

㎂

0.4

1.2

㎂

VKA = 40 V, VREF = 0

IK = 10mA to 100 mA , f ≤ 1.0KHz

0.25

0.5

mA

0.26

0.9

㎂

0.22

0.5

Ω

TEST CIRCUITS

Figure 1. Test Circuit for VKA = VREF

TL431

Figure 2. Test Circuit for VKA ≥ VREF

Figure 3. Test Circuit for I off

I NPUT

TL431

VKA

IK (OFF)

BTTL443231

Rev. 00

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