TL431BCLP datasheet(3/11 Pages) MICROSEMI

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TL431 / TL431A / TL431B

PRODUCTION DATA SHEET

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 3

Rev. 1.4, 2006-09-26

Precision programmable References

ELECTRICAL CHA RACTERISTICS

Unless otherwise specified, these specifications apply over the operating ambient temperature for the TL431C/TL431AC/TL431BC with

0°C < TA < 70°C, and TL431I/TL431AI/TL431BI with -40°C < TA < 85°C

TL431/A/B

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

TL431

IK = 10mA, VKA = VREF, TA = 25°C

2440

2495

2550

TL431A

IK = 10mA, VKA = VREF, TA = 25°C

2470

2495

2520

Reference Input

Voltage

TL431B

VREF

IK = 10mA, VKA = VREF, TA = 25°C

2490

2500

2510

TL431C

IK = 10mA, VKA = VREF

TL431I

IK = 10mA, VKA = VREF

TL431AC

IK = 10mA, VKA = VREF

TL431AI

IK = 10mA, VKA = VREF

TL431BC

IK = 10mA, VKA = VREF

Reference Drift

TL431BI

REF

ΔV

IK = 10mA, VKA = VREF

TL431,

TL431A

IK = 10mA, VKA = 2.5V to 36V

-1.4

-2.7

Voltage Ratio, Ref to

Cathode (Note 4)

TL431B

IK = 10mA, VKA = 2.5V to 36V

-1.1

-2.0

mV/V

TL431,

TL431A

VKA = VREF, TA = 25°C

Reference Input

Current

TL431B

IREF

VKA = VREF, TA = 25°C

1.5

1.9

µA

Minimum Operating Current

IMIN

VKA = VREF to 36V

0.4

TL431

VKA = VREF to 36V, TA= 25°C

0.1

TL431A

VKA = VREF to 36V, TA= 25°C

0.1

VKA = VREF to 36V, TA= Operating Range

Off-State Cathode

Current

TL431B

IOFF

VKA = 36V, VREF = 0V, TA= 25°C

0.18

0.5

µA

TL431

I ZKA I

VKA = VREF, IK = 1mA to 100mA, f < 1kHz,

TA = 25°C

0.2

0.5

Dynamic Impedance

TL431B

VKA = VREF, IK = 1mA to 100mA, f < 1kHz,

TA = 25°C

0.1

0.2

Ω

Note 3: These parameters are guaranteed by design.

Note 4:

REF

ΔV

Ratio of change in reference input voltage to the change in cathode voltage.

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