CL1431D Просмотр технического описания (PDF) - Calogic, LLC

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CL1431D

Precision Adjustable Shunt Reference

Calogic, LLC 

CORPORATION

CL1431

ELECTRICAL CHARACTERISTICS

Electrical characteristics are guaranteed over full junction temperature range (-55 to 125oC). Ambient temperature must be derated based on

power dissipation and package thermal characteristics. The conditions are: VKA = VREF and IK = 10mA unless otherwise stated.

SYMBOL

PARAMETER

VREF

Reference Voltage

TC

VREF with Temp.*

MIN

2.490

2.470

TYP

2.500

0.06

MAX

2.510

2.530

0.16

UNIT CIRCUIT

TEST CONDITION

V

1

TA = 25oC

V

1

Over Temp.

mV/ oC

1

V REF

Ratio of Change in VREF to

Cathode Voltage

-2

-1.1

mV/V

2

VK = 3V to 36V

IREF

Reference Input Current

0.7

1.9

µA

2

R1 = 10k; R2 =

I REF

IREF Temp Deviation

0.4

1.2

µA

2

Over Temp.

IK(MIN)

Min IK for Regulation

0.4

1

mA

1

IK(OFF)

Off State Leakage

0.04

250

nA

3

VREF = 0V, VKA = 36V

ZKA

Dynamic Output Impedance

0.15

0.2

Ω

1

f ≤ 1kHz, IK = 1 to 100mA

*CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)

0

0

0

5000

–10

0.5

∆VREF

∆T

–20

–55 –25 0 25 50 75 100 125

TEMPERATURE (˚C)

0.06 mV/˚C

0.002 %/˚C

24 ppm/˚C

1J-24

TEST CIRCUITS

VIN

I REF

VKA = VREF

IK

VIN

R1

(VREF )

R2

I REF

VKA

IK

•

TC

in

mV/oC

=

∆VREF (mV)

∆TA

• TC in %/oC =

 ∆VREF 





VREF

at

25oC

∆TA

x 100

 ∆VREF 

•

TC

in

ppm/oC

=

VREF

at 25oC

∆TA

x 106

VIN

VKA

I K(OFF)

1G-38

TEST CIRCUIT 1

1G-39

TEST CIRCUIT 2

1G-40

TEST CIRCUIT 3

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

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