LM4050_EM3-50 datasheet, PDF - EEWORLD Datasheet

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LM4050_EM3-50: Description50ppmC Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown; File Size386KB，14 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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LM4050_EM3-50 Overview

50ppmC Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown

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19-2563; Rev 5; 5/11

50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

General Description

The LM4050/LM4051 are precision two-terminal, shunt-

mode, bandgap voltage references available in fixed

reverse breakdown voltages of 1.225V, 2.048V, 2.500V,

3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-criti-

cal applications, the LM4050/LM4051 are offered in the

subminiature 3-pin SC70 surface-mount packages

(1.8mm x 1.8mm), 50% smaller than comparable

devices in SOT23 surface-mount package (SOT23 ver-

sions are also available).

Laser-trimmed resistors ensure excellent initial

accuracy. With a 50ppm/°C temperature coefficient,

these devices are offered in three grades of initial accu-

racy ranging from 0.1% to 0.5%. The LM4050/LM4051

have a 60µA to 15mA shunt-current capability with low

dynamic impedance, ensuring stable reverse break-

down voltage accuracy over a wide range of operating

temperatures and currents. The LM4050/LM4051 do

not require an external stabilizing capacitor while

ensuring stability with any capacitive loads.

The LM4050/LM4051 specifications are guaranteed

over the temperature range of -40°C to +125°C.

Features

50ppm/°C (max) Temperature Coefficient

Guaranteed over the -40°C to +125°C

Temperature Range

Ultra-Small 3-Pin SC70 Package

0.1% (max) Initial Accuracy

Wide Operating Current Range: 60µA to 15mA

Low 28µV

RMS

Output Noise (10Hz to 10kHz)

1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and

5.000V Fixed Reverse Breakdown Voltages

No Output Capacitors Required

Tolerates Capacitive Loads

LM4050/LM4051

Selector Guide

OUTPUT

PIN-

TEMP RANGE

VOLTAGE

PACKAGE

(V)

2.048

2.500

3.000

3.300

4.096

5.000

1.225

________________________Applications

Portable, Battery-Powered Equipment

Notebook Computers

Cell Phones

Industrial Process Controls

Typical Operating Circuit

SHUNT

+ I

LOAD

SHUNT

-40°C to +125°C 3 SOT23

LM4050_EM3-2.1+T

-40°C to +125°C

LM4050_EX3-2.1+T

3 SC70

-40°C to +125°C 3 SOT23

LM4050_EM3-2.5+T

-40°C to +125°C

LM4050_EX3-2.5+T

3 SC70

-40°C to +125°C 3 SOT23

LM4050_EM3-3.0+T

-40°C to +125°C

LM4050_EX3-3.0+T

3 SC70

-40°C to +125°C 3 SOT23

LM4050_EM3-3.3+T

-40°C to +125°C

LM4050_EX3-3.3+T

3 SC70

LM4050_EX3-3.3/V+T -40°C to +125°C

3 SC70

-40°C to +125°C 3 SOT23

LM4050_EM3-4.1+T

LM4050_EM3-4.1/V+T -40°C to +125°C 3 SOT23

-40°C to +125°C

LM4050_EX3-4.1+T

3 SC70

-40°C to +125°C 3 SOT23

LM4050_EM3-5.0+T

LM4050_EM3-5.0/V+T -40°C to +125°C 3 SOT23

-40°C to +125°C

LM4050_EX3-5.0+T

3 SC70

-40°C to +125°C 3 SOT23

LM4051_EM3-1.2+T

-40°C to +125°C

LM4051_EX3-1.2+T

3 SC70

+Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

Denotes an automotive qualified part.

Ordering Information appears at end of data sheet.

Pin Configuration

TOP VIEW

LM4050/

LM4051

N.C.*

LM4050

SC70/SOT23

*PIN 3 MUST BE LEFT UNCONNECTED

OR CONNECTED TO PIN 2.

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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