ELECTRICAL CHARACTERISTICS

Symbol

Parameter

TL1431I

TL1431AI

Unit

Min.

Typ.

Max.

Min.

Typ.

Max.

Reference Input Voltage - (figure 1)

2.490

2.500

2.510

2.493

2.500

2.507

V

Reference Input Voltage Deviation Over

Temperature Range - (figure 1, note1)

730

7

30

mV

∆T

Temperature Coefficient of Reference Input

Voltage - (note 2)

±22

±100

±22

±100

ppm/

Ratio of Change in Reference Input Voltage to

Change in Cathode to Anode Voltage - (figure 2)

-1.1

-2

-1.1

-2

mV/V

Iref

Reference Input Current - (figure 2)

1.5

2.5

3

1.5

2.5

3

µA

Reference Input Current Deviation Over

Temperature Range - (figure 2)

0.5

1

0.8

1.2

µA

Minimum Cathode Current for Regulation

(figure 1)

0.5

1

0.5

0.7

mA

Off-State Cathode Current - (figure 3)

180

500

180

500

nA

Dynamic Impedance - (figure 1, note 3)

0.2

0.5

0.2

0.5

Ω

T1

T2

Tempera ture

Notes : 1.

range.

2.

The temperature coefficient is defined as the slopes (positive and negative) of the voltage vs temperature limits whithin

which the reference voltage is guaranteed.

3.

=

25 C

Te m pe ra ture

ma x

2.5V

min

-n

p pm

/

C

+ n

ppm

/ C

TL1431

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