LX6431ACLP datasheet(1/11 Pages) MICROSEMI

部件名	LX6431ACLP

功能描述	PRECISION PROGRAMMABLE REFERENCES

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制造商	MICROSEMI [Microsemi Corporation]

网页	http://www.microsemi.com

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P RECISION P ROGRAMMABLE R EFERENCE S

P RODUCTION D AT A S HEET

T HE

I NFINITE

P OWER

OF

I NNOV A TION

LX6431/LX6431A/LX6431B

DESCRIPTION

KEY FEA TURES

s Unconditionally Stable For All Cathode To

Anode Capacitance Values

s Reduced Reference Input Current Allowing

The Use Of Higher Value Divider Resistors

(0.5µA Max.)

s Initial Voltage Reference Accuracy Of 0.4%

(LX6431B)

s Sink Current Capability 0.6mA to 100mA

s Typical Output Dynamic Impedance Less

Than 100m

Ω

s Adjustable Output Voltage From 2.5V to

36V

reducing the current drain from batteries

in portable equipment as well as reducing

the voltage programming errors due to

the impedance of the divider network

(See Product Highlight figure below). In

addition, the LX6431B has an improved

initial accuracy of 0.4%, and the output

voltage is programmable by using two

external resistors from 2.5V to 36V.

These devices offer low output

impedance for improved load regulation.

The typical output impedance of these

devices is 100m

Ω. The reduced

reference input bias current and minimum

operating currents make these devices

suitable for portable and micropower

applications.

The LX6431 series precision adjustable

three terminal shunt voltage regulators are

pin-to-pin compatible with the industry

standard TL431, but with significant

improvements. The LX6431 design has

eliminated regions of instability common

to older generation shunt regulator

products like the TL431. Designs are

made simpler by eliminating the task of

insuring capacitive loads, and output

voltage and cathode currents don't

combine for unstable operation. The

capacitor value is chosen simply to give

the best load transient response without

the possibility of instability. A lower

reference input current allows the use of

higher value reference divider resistors,

PRODUCT HIGHLIGHT

O UTPUT V O L TAGE E RROR DUE TO I

REF

LX6431

R1

R2

GND

V

KA

V

IN

T YPICAL P ROGRAMMABLE V O LTAGE

R EFERENCE C IRCUIT

15

2.5

3.75

5

6.25

7.5

8.75

10

11.25

12.5

13.75

0

2

4

6

8

10

12

14

16

18

20

(V ) Output Voltage - (V)

KA

PACKAGE ORDER INFORMA TION

T

A (°C)

Initial

Tolerance

Plastic SOIC

8-pin

DM

Plastic TO-92

3-pin

LP

2%

LX6431CDM

LX6431CLP

0 to 70

1%

LX6431ACDM

LX6431ACLP

0.4%

LX6431BCDM

LX6431BCLP

2%

LX6431IDM

LX6431ILP

-40 to 85

1%

LX6431AIDM

LX6431AILP

0.4%

LX6431BIDM

LX6431BILP

Note: All surface-mount packages are available in Tape & Reel.

Append the letter "T" to part number. (i.e. LX5212CDPT)

TO-92 (LP) package also available in ammo-pack.

NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.

Rev. 1.4

6/99

1

11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570

L IN F INITY M ICROELECTRONICS I NC .

类似零件编号 - LX6431ACLP

制造商	部件名	数据表	功能描述
Microsemi Corporation	LX6431ACLP	405Kb / 11P	PRECISION PROGRAMMABLE REFERENCES
Microsemi Corporation	LX6431ACLP-TR	405Kb / 11P	PRECISION PROGRAMMABLE REFERENCES

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