LM336Z-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 volt-age 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 PackageDS005716-4Bottom ViewOrder Number LM236AZ-5.0,LM336Z-5.0or LM336BZ-5.0See NS Package Number Z03ATO-46Metal Can PackageDS005716-5Bottom 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 H03HJune 1999LM136-5.0/LM236-5.0/LM336-5.05.0V Reference Diode©1999National Semiconductor Corporation Connection Diagrams(Continued)Typical ApplicationsSO PackageDS005716-7Order Number LM336M-5.0or LM336BM-5.0See NS Package Number M08A5.0V ReferenceDS005716-15.0V Reference with Minimum Temperature CoefficientDS005716-15†Adjust to 5.00V*Any silicon signal diodeTrimmed 4V to 6V Reference with Temperature Coefficient Independent of Breakdown VoltageDS005716-3*Does not affect temperature coefficient 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˚C Infrared(15sec.)220˚C See AN-450“Surface Mounting Methods and Their Effect on Product Reliability”(appendix D)for other methods of solder-ing 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,612620mV With 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≤10mA617624mV With 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)overthe indicated temperature and supply voltage ranges.These limits are not used to calculate outgoing quality levels.Stability is defined as the maximum charge inV REF from25˚C to T A(min)or T A(max).3Typical Performance CharacteristicsApplicationHintsThe LM136-5.0series voltage references are much easier to use than ordinary zener diodes.Their low impedance and wide operating current range simplify biasing in almost any circuit.Further,either the breakdown voltage or the tempera-ture coefficient can be adjusted to optimize circuit perfor-mance.Figure 1shows an LM136-5.0with a 10k potentiometer for adjusting the reverse breakdown voltage.With the addition of R1the breakdown voltage can be adjusted without affect-ing the temperature coefficient of the device.The adjustment range is usually sufficient to adjust for both the initial device tolerance and inaccuracies in buffer circuitry.If minimum temperature coefficient is desired,four diodes can be added in series with the adjustment potentiometer as shown in Figure 2.When the device is adjusted to 5.00V the temperature coefficient is minimized.Almost any silicon sig-nal diode can be used for this purpose such as a 1N914,1N4148or a 1N457.For proper temperature compensation the diodes should be in the same thermal environment as the 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 from 2k to 20k will work.Because of the wide adjustment range,fixed resistors should be connected in series with the pot to make pot setting less critical.Reverse Voltage ChangeDS005716-17Zener Noise VoltageDS005716-18Dynamic ImpedanceDS005716-19Response Time DS005716-20Reverse CharacteristicsDS005716-21Temperature Drift DS005716-22Forward CharacteristicsDS005716-23 4Application Hints(Continued)DS005716-9FIGURE1.LM136-5.0with Pot for Adjustment ofBreakdown Voltage(Trim Range=±1.0V Typical)DS005716-10FIGURE2.Temperature Coefficient Adjustment(Trim Range=±0.5V Typical)5Typical ApplicationsPrecision Power Regulator with Low Temperature CoefficientDS005716-11 *Adjust for6.25V across R15V CrowbarDS005716-12Adjustable Shunt RegulatorDS005716-13 6Typical Applications(Continued)LinearOhmmeterDS005716-14 Op Amp with Output ClampedDS005716-24Bipolar Output ReferenceDS005716-255.0V Square Wave CalibratorDS005716-2610V Buffered ReferenceDS005716-27 7Typical Applications(Continued)Low Noise Buffered ReferenceDS005716-28Wide Input Range ReferenceDS005716-29 8Schematic DiagramD S 005716-169Physical Dimensions inches(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 M08A10Physical Dimensions inches(millimeters)unless otherwise noted(Continued)LIFE 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 PRESIDENTAND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION.As used herein:1.Life support devices or systems are devices orsystems which,(a)are intended for surgical implantinto the body,or(b)support or sustain life,andwhose failure to perform when properly used inaccordance with instructions for use provided in thelabeling,can be reasonably expected to result in asignificant injury to the user.2.A critical component is any component of a lifesupport device or system whose failure to performcan be reasonably expected to cause the failure ofthe life support device or system,or to affect itssafety or effectiveness.National SemiconductorCorporationAmericasTel:1-800-272-9959Fax:1-800-737-7018Email:support@National SemiconductorEuropeFax:+49(0)180-5308586Email:europe.support@Deutsch Tel:+49(0)180-5308585English Tel:+49(0)180-5327832Français Tel:+49(0)180-5329358Italiano Tel:+49(0)180-5341680National SemiconductorAsia Pacific CustomerResponse GroupTel:65-2544466Fax:65-2504466Email:sea.support@National SemiconductorJapan Ltd.Tel:81-3-5639-7560Fax:81-3-5639-7507 Plastic Package(Z)Order Number LM236AZ-5.0,LM336Z-5.0or LM336BZ-5.0NS Package Number Z03ALM136-5.0/LM236-5.0/LM336-5.05.0VReferenceDiode National 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.。