LM134-LM234 STMicroelectronics, LM134-LM234 Datasheet

LM134-LM234

Manufacturer Part Number

LM134-LM234

Description

THREE TERMINAL ADJUSTABLE CURRENT SOURCES

Manufacturer

STMicroelectronics

Datasheet

1.LM134-LM234.pdf (10 pages)

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DESCRIPTION

The LM134/LM234/LM334 are 3-terminal adjust-

able current sources characterized by :

The current is determined by an external resistor

without requiring other external components.

Reverse voltages of up to 20V will only draw a cur-

rent of several microamperes. This enables the

circuit to operate as a rectifier and as a source of cur-

rent in a.c. applications.

For the LM134/LM234/LM334, the voltage on the

control pin is 64mV at +25

tionalto the absolute temperature (

external resistor connection generates a current

with

drift can be obtainedby adding an additionalresistor

and a diode to the external circuit.

PIN CONNECTIONS

October 1997

OPERATES from 1V to 40V

0.02% V CURRENT REGULATION

PROGRAMMABLE from 1 A to 10mA

3% INITIAL ACCURACY

- an operating current range of 10000 : 1

- an excellent current regulation

- a wide dynamic voltage range of 1V to 40V

0.33%/

THREE TERMINAL ADJUSTABLE CURRENT SOURCES

C temperature dependence. Zero

(Bottom view)

V +

TO92

C and is directly propor-

AD J

K). The simplest

ORDER CODES

LM134

LM234

LM334

Example : LM134Z

Part Num-

ber

(Plastic Micropackage)

ADJ

N C

(Plastic Package)

LM134-LM234

(Top view)

–55

–25

Temperature

N C

SO8

C, +70

TO92

Range

C, +125

C, +100

SO8

N C

V +

LM334

Package

1/10

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