Page:P2-P1

Plastic-Encapsulate Adjustable Reference Source

GUANGDONG

HOTTECH

INDUSTRIAL

CO,. LTD.

FEATURES

The output voltage can be adjusted to 36V

Low dynamic output impedance ,its typical value is 0.2Ω

Trapping current capability is 1 to 100mA

The typical value of the equivalent temperature factor in the

whole temperature scope is 50 ppm/

The effective temperature compensation in the working

range of full temperature, Low output noise voltage

ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)

Parameter

Symbol

Value

Unit

Cathode Voltage

37

V

Cathode Current Range (Continuous)

-100-+150

mA

Reference lnput Current Range

Iref

0.05-+10

mA

Power Dissipation

SOT-23

SOT-89

TO -92

300

mW

500

mW

770

mW

Operating temperature

Topr

0-70

Storage temperature Range

Tstg

-65-+150

ELECTRICAL CHARACTERISTICS (Tamb=25

unless otherwise specified)

Parameter

Symbol

Test conditions

Min

Typ

Max

Unit

Reference lnput Voltage

Vref

VKA=VREF, IKA=10mA

2.450

2.5

2.550

V

Deviation of reference input Voltage

Over temperature (note)

△Vref/△T VKA=VREF,IKA=10mA

Tmin≤Ta≤Tmax

4.5

17

mV

Ratio Of Change in Reference lnput Voltage

to the change in Cathode Voltage

△Vref/△VKA

IKA=10mA

△VKA

=10V~VREF

-1.0

-2.7

m V/V

△VKA

=36V~ 10V

-0.5

-2.0

m V/V

Reference lnput Current

lref

IKA= 10mA,R1=10KΩ

R2=∞

1.5

4

μA

Deviation Of Reference lnput Current

Over Full Temperature Range

△lref/△T lKA=10mA,R1=10KΩ

R2=∞

TA=full Temperature

0.4

1.2

μA

Minimum cathode current for

regulation

IKA(min)

VKA=VREF

0.45

1.0

mA

Off-state cathode Current

IKA(OFF)

VKA=36V,VREF=0

0.05

1.0

μA

Dynamic lmpedance

ZKA

VKA=VREF, lKA=1 to 100mA

f≤1.0KHz

0.15

0.5

Ω

Note:TMIN=0

,TMAX=+70

CLASSIFICATION OF Vref

Rank

0.5%

1%

2%

Range

2.487-2.512

2.475-2.525

2.450-2.550

TL431

1. REFERENCE

2. CATHODE

3. ANODE

1. REFERENCE

2.

CATHODE

3.

ANODE

1. REFERENCE

2.

CATHODE

3.

ANODE

SOT-23

SOT-89

TO-92