LM136-5.0

LM136-5.0/LM236-5.0/LM336-5.05.0V Reference DiodeGeneral DescriptionThe LM136-5.0/LM236-5.0/LM336-5.0integrated circuits are precision 5.0V shunt regulator diodes.These monolithic IC voltage references operate as a low temperature coefficient 5.0V zener with 0.6Ωdynamic impedance.A third terminal on the LM136-5.0allows the reference voltage and tempera-ture coefficient to be trimmed easily.The LM136-5.0series is useful as a precision 5.0V low voltage reference for digital voltmeters,power supplies or op amp circuitry.The 5.0V makes it convenient to obtain a stable reference from low voltage supplies.Further,since the LM136-5.0operates as a shunt regulator,it can be used as either a positive or negative voltage reference.The LM136-5.0is rated for operation over −55˚C to +125˚C while the LM236-5.0is rated over a −25˚C to +85˚C tem-perature range.The LM336-5.0is rated for operation over a0˚C to +70˚C temperature range.See the connection dia-grams for available packages.For applications requiring 2.5V see LM136-2.5.Featuresn Adjustable 4V to 6Vn Low temperature coefficientn Wide operating current of 600µA to 10mA n 0.6Ωdynamic impedancen ±1%initial tolerance available n Guaranteed temperature stabilityn Easily trimmed for minimum temperature drift n Fast turn-onnThree lead transistor packageConnection DiagramsTO-92Plastic Package00571604Bottom ViewOrder Number LM336Z-5.0or LM336BZ-5.0See NS Package Number Z03ATO-46Metal Can Package00571605Bottom ViewOrder Number LM136H-5.0,LM136H-5.0/883,LM236H-5.0,LM136AH-5.0,LM136AH-5.0/883,or LM236AH-5.0See NS Package Number H03HSO Package00571607Order Number LM336M-5.0or LM336BM-5.0See NS Package Number M08ASeptember 2003LM136-5.0/LM236-5.0/LM336-5.05.0V Reference Diode©2003National Semiconductor Corporation 查询LM136-5.0供应商Typical Applications5.0V Reference005716015.0V Reference with MinimumTemperature Coefficient00571615†Adjust to5.00V*Any silicon signal diodeTrimmed4V to6V Referencewith Temperature CoefficientIndependent of Breakdown Voltage00571603*Does not affect temperature coefficientLM136-5./LM236-5./LM336-5.2Absolute Maximum Ratings(Note1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Reverse Current15mA Forward Current10mA Storage Temperature−60˚C to+150˚C Operating Temperature Range(Note2)LM136-5.0−55˚C to+150˚C LM236-5.0−25˚C to+85˚CLM336-5.00˚C to+70˚C Soldering InformationTO-92Package(10sec.)260˚C TO-46Package(10sec.)300˚C SO PackageVapor Phase(60sec.)215˚CInfrared(15sec.)220˚C See AN-450“Surface Mounting Methods and Their Effect on Product Reliability”(appendix D)for other methods of sol-dering surface mount devices.Electrical Characteristics(Note3)LM136A-5.0/LM236A-5.0LM336B-5.0 Parameter Conditions LM136-5.0/LM236-5.0LM336-5.0UnitsMin Typ Max Min Typ MaxReverse Breakdown Voltage T A=25˚C,I R=1mALM136-5.0/LM236-5.0/LM336-5.0 4.9 5.00 5.1 4.8 5.00 5.2VLM136A-5.0/LM236A-5.0,LM336B-5.0 4.95 5.00 5.05 4.90 5.00 5.1V Reverse Breakdown Change T A=25˚C,612620mVWith Current600µA≤I R≤10mAReverse Dynamic Impedance T A=25˚C,I R=1mA,f=100Hz0.6 1.20.62ΩTemperature Stability V R Adjusted5.00V(Note4)I R=1mA,(Figure2)0˚C≤T A≤70˚C(LM336-5.0)412mV−25˚C≤T A≤+85˚C(LM236-5.0)718mV−55˚C≤T A≤+125˚C(LM136-5.0)2036mV Reverse Breakdown Change600µA≤I R≤10mA617624mVWith CurrentAdjustment Range Circuit of Figure1±1±1V Reverse Dynamic Impedance I R=1mA0.8 1.60.8 2.5ΩLong Term Stability T A=25˚C±0.1˚C,I R=1mA,t=1000hrs2020ppm Note1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Electrical specifications do not apply when operating the device beyond its specified operating conditions.Note2:For elevated temperature operation,T j max is:LM136150˚CLM236125˚CLM336100˚CThermal Resistance TO-92TO-46SO-8θja(Junction to Ambient)180˚C/W(0.4"Leads)440˚C/W165˚C/W170˚C/W(0.125"Leads)θja(Junction to Case)N/A80˚C/W N/ANote3:Unless otherwise specified,the LM136-5.0is specified from−55˚C≤T A≤+125˚C,the LM236-5.0from−25˚C≤T A≤+85˚C and the LM336-5.0from0˚C≤T A≤+70˚C.Note4:Temperature stability for the LM336and LM236family is guaranteed by design.Design limits are guaranteed(but not100%percent production tested)over the indicated temperature and supply voltage ranges.These limits are not used to calculate outgoing quality levels.Stability is defined as the maximum charge in V REF from25˚C to T A(min)or T A(max).LM136-5.0/LM236-5.0/LM336-5.03Typical Performance CharacteristicsReverse Voltage ChangeZener Noise Voltage0057161700571618Dynamic Impedance Response Time0057161900571620Reverse Characteristics Temperature Drift0057162100571622L M 136-5.0/L M 236-5.0/L M 336-5.0 4Typical Performance Characteristics(Continued) Forward Characteristics00571623Application HintsThe LM136-5.0series voltage references are much easier touse than ordinary zener diodes.Their low impedance andwide operating current range simplify biasing in almost anycircuit.Further,either the breakdown voltage or the tempera-ture coefficient can be adjusted to optimize circuit perfor-mance.Figure1shows an LM136-5.0with a10k potentiometer foradjusting the reverse breakdown voltage.With the additionof R1the breakdown voltage can be adjusted without affect-ing the temperature coefficient of the device.The adjustmentrange is usually sufficient to adjust for both the initial devicetolerance and inaccuracies in buffer circuitry.If minimum temperature coefficient is desired,four diodescan be added in series with the adjustment potentiometer asshown in Figure2.When the device is adjusted to5.00V thetemperature coefficient is minimized.Almost any silicon sig-nal diode can be used for this purpose such as a1N914,1N4148or a1N457.For proper temperature compensationthe diodes should be in the same thermal environment asthe LM136-5.0.It is usually sufficient to mount the diodes near the LM136-5.0on the printed circuit board.The abso-lute resistance of the network is not critical and any value from2k to20k will work.Because of the wide adjustment range,fixed resistors should be connected in series with the pot to make pot setting less critical.00571609FIGURE1.LM136-5.0with Pot for Adjustment ofBreakdown Voltage(Trim Range=±1.0V Typical)00571610FIGURE2.Temperature Coefficient Adjustment(Trim Range=±0.5V Typical)LM136-5.0/LM236-5.0/LM336-5.05Typical ApplicationsPrecision Power Regulator with Low Temperature Coefficient00571611*Adjust for 6.25V across R15V Crowbar00571612Adjustable Shunt Regulator00571613L M 136-5.0/L M 236-5.0/L M 336-5.0 6Typical Applications(Continued)Linear Ohmmeter00571614Op Amp with Output Clamped00571624LM136-5.0/LM236-5.0/LM336-5.07Typical Applications(Continued)Bipolar Output Reference005716255.0V Square Wave Calibrator0057162610V Buffered Reference00571627L M 136-5.0/L M 236-5.0/L M 336-5.0 8Typical Applications(Continued)Low Noise Buffered Reference00571628Wide Input Range Reference00571629LM136-5.0/LM236-5.0/LM336-5.09Schematic Diagram00571616L M 136-5.0/L M 236-5.0/L M 336-5.0 10Physical Dimensionsinches (millimeters)unless otherwise notedTO-46Metal Can Package (H)Order Number LM136H-5.0,LM136H-5.0/883,LM236H-5.0,LM136AH-5.0,LM136AH-5.0/883or LM236AH-5.0NS Package Number H03HSmall Outline (SO-8)PackageOrder Number LM336M-5.0or LM336BM-5.0NS Package Number M08ALM136-5.0/LM236-5.0/LM336-5.011Physical Dimensionsinches (millimeters)unless otherwise noted (Continued)Plastic Package (Z)Order Number LM336Z-5.0or LM336BZ-5.0NS Package Number Z03ALIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION.As used herein:1.Life support devices or systems are devices or systems which,(a)are intended for surgical implant into the body,or (b)support or sustain life,and whose failure to perform when properly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in a significant injury to the user.2.A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system,or to affect its safety or effectiveness.National Semiconductor Americas Customer Support CenterEmail:new.feedback@ Tel:1-800-272-9959National SemiconductorEurope Customer Support CenterFax:+49(0)180-5308586Email:europe.support@Deutsch Tel:+49(0)6995086208English Tel:+44(0)8702402171Français Tel:+33(0)141918790National Semiconductor Asia Pacific Customer Support CenterEmail:ap.support@National SemiconductorJapan Customer Support Center Fax:81-3-5639-7507Email:jpn.feedback@ Tel:81-3-5639-7560L M 136-5.0/L M 236-5.0/L M 336-5.05.0V R e f e r e n c e D i o d eNational does not assume any responsibility for use of any circuitry described,no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.。