TL431BU datasheet(1/4 Pages) MCC

Part #	TL431BU

Description	Programmable Precision Regulator

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Manufacturer	MCC [Micro Commercial Components]

Direct Link	http://www.mccsemi.com

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TL431BU

Programmable

Precision Regulator

Features

•

Programmable Output Voltage 36V

•

Sink Current Capability of 0.1mA to 100 mA

•

Temperature Compensated for operation over full rated operating

temperature range

•

Low output noise voltage and Fast turn on response

•

The Reference Input Voltage tolerance is 0.5%

•

Marking Code: 431

MaximumRatings

Parameter

Symbol

Value

Unit

Cathode Voltage

VKA

37

V

Cathode Current Range

IK

-100~150

mA

Reference Input Current Range

IREF

0.05~10

mA

Power Dissipation at 25

PD

0.2

W

Thermal Resistance Junction to Ambient

RθJA

300

/W

Operating Temperature

Topr

0---70

Storage Temperature Range

TSTG

-55---+150

RecommendedOperatingConditions

Parameter

Sym

Min

Max

Unit

Cathode Voltage

VKA

VREF

36

V

Cathode Current Range

IK

1.0

100

mA

ElectricalCharacteristics@25°CUnlessOtherwiseSpecified

Parameter

Sym

Min

Typ

Max

Test conditions

Reference Input

Voltage

Vref

2.487V

2.500V

2.512V

Deviation of

reference input

voltage

Vref(dev)

3.0mV

17mV

-1.4

-2.7

VKA=10V

Vref

Ratio of Change in

Reference Input

Voltage to the

Change in Cathode

Voltage

Vref/

VKA

-1.0

-2.0

VKA=36V

10V

Reference Input

Current

Iref

1.8

µA

4.0

µA

IKA=10mA,

R1=10K

R2=

Deviation of

Reference Input

Current Over Full

Temperature Range

Iref/

T

0.4

µA

1.2

µA

IKA=10mA,

R1=10K

R2=

TA=full Temperature

Minimum Cathode

Current for

Regulation

IKA(min)

0. 5mA

1.0mA

Off-State Cathode

Current

IKA(off)

0.26

µA

1.0

µA

VKA=36V, VREF=0V

Dynamic Impedance

ZKA

0.22

0.5

IKA=10 to 100mA,

f

1.0KHz

INCHES

MM

DIM

MIN

MAX

MIN

MAX

NOTE

A

.110

.120

2.80

3.04

B

.083

.098

2.10

2.64

C

.047

.055

1.20

1.40

D

.035

.041

.89

1.03

E

.070

.081

1.78

2.05

F

.018

.024

.45

.60

G

.0005

.0039

.013

.100

H

.035

.044

.89

1.12

J

.003

.007

.085

.180

K

.015

.020

.37

.51

A

B

C

D

E

F

G

H

J

K

Suggested Solder

Pad Layout

.079

2.000

inches

mm

.031

.800

.035

.900

.037

.950

.037

.950

DIMENSIONS

SOT-23

1. (A) ANODE

2. (R) REFERENCE

3. (K) CATHODE

1

2

3

omponents

20736 Marilla Street Chatsworth

!"#

$% !"#

M C C

VKA=VREF, IKA=10mA

Tmin

Ta

Tmax

VKA=VREF, IKA=10mA

www.mccsemi.com

1

of 4

Revision:

A

20

11/01/01

Micro Commercial Components

TM

•

Lead Free Finish/RoHS Compliant ("P" Suffix designates

RoHS Compliant. See ordering information)

•

Epoxy meets UL 94 V-0 flammability rating

•

Moisure Sensitivity Level 1

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