LM136-5.0QML,LM136A-5.0QML LM136A-5.0QML LM136-5.0QML 5.0V Reference Diode Literature Number: SNVS352A October 27, 2010 5.0V Reference Diode General Description Features The LM136A-5.0QML/LM136-5.0QML integrated circuits are precision 5.0V shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient 5.0V zener with 0.6Ω dynamic impedance. A third terminal on the LM136-5.0 allows the reference voltage and temperature coefficient to be trimmed easily. The LM136-5.0 series 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 LM136-5.0 operates as a shunt regulator, it can be used as either a positive or negative voltage reference. ■ ■ ■ ■ ■ ■ ■ ■ Adjustable 4V to 6V Low temperature coefficient Wide operating current of 600 μA to 10 mA 0.6Ω dynamic impedance Guaranteed temperature stability Easily trimmed for minimum temperature drift Fast turn-on Three lead transistor package Ordering Information NS Part Number SMD Part Number NS Package Number LM136H-5.0/883 LM136AH-5.0/883 LM136AH-5.0-SMD 8418002XA Package Description H03H T0-46, 3LD Metal Can H03H T0-46, 3LD Metal Can H03H T0-46, 3LD Metal Can Connection Diagram TO-46 Metal Can Package 20139805 Bottom View See NS Package Number H03H © 2010 National Semiconductor Corporation 201398 www.national.com LM136A-5.0QML/LM136-5.0QML 5.0V Reference Diode LM136A-5.0QML LM136-5.0QML LM136A-5.0QML/LM136-5.0QML Schematic Diagram 20139816 www.national.com 2 LM136A-5.0QML/LM136-5.0QML Typical Applications 5.0V Reference 20139801 5.0V Reference with Minimum Temperature Coefficient 20139815 † Adjust to 5.00V * Any silicon signal diode Trimmed 4V to 6V Reference with Temperature Coefficient Independent of Breakdown Voltage 20139803 * Does not affect temperature coefficient 3 www.national.com LM136A-5.0QML/LM136-5.0QML Absolute Maximum Ratings (Note 1) Reverse Current Forward Current Storage Temperature Operating Temperature Range 15mA 15mA −60°C ≤ TA ≤ +150°C −55°C ≤ TA ≤ +125°C 300°C 150°C (Note 2) Soldering Information (10 Seconds) Maximum Junction Temperature (TJmax) Thermal Resistance θJA Still Air Flow 500LF/Min Air Flow θJC ESD Rating 354°C/W 77°C/W 46°C/W (Note 3) 1,000 V Quality Conformance Inspection Mil-Std-883, Method 5005 - Group A Subgroup Description Temp°C 1 Static tests at +25 2 Static tests at +125 3 Static tests at -55 4 Dynamic tests at +25 5 Dynamic tests at +125 6 Dynamic tests at -55 7 Functional tests at +25 8A Functional tests at +125 8B Functional tests at -55 9 Switching tests at +25 10 Switching tests at +125 11 Switching tests at -55 12 Settling time at +25 13 Settling time at +125 14 Settling time at -55 www.national.com 4 DC Parameters The following conditions apply, unless otherwise specified. IR = 1 mA Symbol Parameter Conditions Notes VAdj = 2.5V VAdj = 1.5V VR Reverse Breakdown Voltage VAdj = 3.5V Subgroups Min Max Unit 4.6 5.4 V 1 4.8 5.6 V 2, 3 5.4 6.6 V 1 5.6 6.8 V 2, 3 2.4 4.6 V 1 2.8 4.8 V 2, 3 4.878 5.081 V 1 4.83 5.13 V 2, 3 VAdj = 2.5V -260 260 µA 1 VAdj = 1.5V -260 260 µA 1 VAdj = 3.5V -260 260 µA 1 Reverse Breakdown Change with Current 0.6mA ≤ IR ≤ 15 mA -12 12 mV 1 -20 20 mV 2, 3 VF Foward Voltage IR = -10mA -1.5 -0.49 V 1 VStab Temperature Stability VR = Adjusted to 5V VAdj = Open IAdj ΔVR ZRD Adjust Current Reverse Dynamic Impedance 36 mV 2, 3 1.6 Ω 1, 2, 3 Min Max Unit Subgroups 4.6 5.4 V 1 4.8 5.6 V 2, 3 5.4 6.6 V 1 5.6 6.8 V 2, 3 2.4 4.6 V 1 2.8 4.8 V 2, 3 (Note 4) LM136A–5.0 Electrical Characteristics DC Parameters The following conditions apply, unless otherwise specified. IR = 1 mA Symbol Parameter Conditions Notes VAdj = 2.5V VAdj = 1.5V VR Reverse Breakdown Voltage VAdj = 3.5V 4.935 5.029 V 1 4.88 5.08 V 2, 3 VAdj = 2.5V -260 260 µA 1 VAdj = 1.5V -260 260 µA 1 VAdj = 3.5V -260 260 µA 1 VAdj = Open IAdj Adjust Current ΔVR Reverse Breakdown Change with Current 0.6mA ≤ IR ≤ 15 mA -12 12 mV 1 -20 20 mV 2, 3 VF Foward Voltage IR = -10mA -1.5 -0.49 V 1 VStab Temperature Stability VR = Adjusted to 5V 36 mV 2, 3 1.6 Ω 1, 2, 3 ZRD Reverse Dynamic Impedance (Note 4) 5 www.national.com LM136A-5.0QML/LM136-5.0QML LM136-5.0 Electrical Characteristics LM136A-5.0QML/LM136-5.0QML Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/ θJA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 3: Human body model, 100pF discharged through 1.5KΩ Note 4: Guaranteed, not tested. Typical Performance Characteristics Reverse Voltage Change Zener Noise Voltage 20139817 20139818 Dynamic Impedance Response Time 20139820 20139819 Reverse Characteristics Temperature Drift 20139822 20139821 www.national.com 6 LM136A-5.0QML/LM136-5.0QML Forward Characteristics 20139823 Application Hints The LM136-5.0 series 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 temperature coefficient can be adjusted to optimize circuit performance. Figure 1 shows an LM136-5.0 with a 10k potentiometer for adjusting the reverse breakdown voltage. With the addition of R1 the breakdown voltage can be adjusted without affecting 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 signal diode can be used for this purpose such as a 1N914, 1N4148 or 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 LM136-5.0 on the printed circuit board. The absolute 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. 20139810 FIGURE 2. Temperature Coefficient Adjustment (Trim Range = ±0.5V Typical) 20139809 FIGURE 1. LM136-5.0 with Pot for Adjustment of Breakdown Voltage (Trim Range = ±1.0V Typical) 7 www.national.com LM136A-5.0QML/LM136-5.0QML Typical Applications Precision Power Regulator with Low Temperature Coefficient 20139811 * Adjust for 6.25V across R1 5V Crowbar 20139812 Adjustable Shunt Regulator 20139813 www.national.com 8 LM136A-5.0QML/LM136-5.0QML Linear Ohmmeter 20139814 Op Amp with Output Clamped 20139824 Bipolar Output Reference 20139825 9 www.national.com LM136A-5.0QML/LM136-5.0QML 5.0V Square Wave Calibrator 20139826 10V Buffered Reference 20139827 Low Noise Buffered Reference 20139828 Wide Input Range Reference 20139829 www.national.com 10 Date Released Revision 04/10/08 A New Release, Corporate format. Section 2 MDS datasheets were converted into one Corporate datasheet format. MNLM136A-5.0-X Rev 0B0 & LM136-5.0-X Rev 0A0 MDS Data Sheets will be archived. Changes 10/26/2010 B Data Sheet Title Changed Title from LM136A-5.0/LM136–5.0QML to LM136A-5.0QML/LM136–5.0QML. Revision A will be Archived. 11 www.national.com LM136A-5.0QML/LM136-5.0QML Revision History LM136A-5.0QML/LM136-5.0QML Physical Dimensions inches (millimeters) unless otherwise noted TO-46 Metal Can Package (H) NS Package Number H03H www.national.com 12 LM136A-5.0QML/LM136-5.0QML www.national.com 13 LM136A-5.0QML/LM136-5.0QML 5.0V Reference Diode Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH® Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise® Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagic™ www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise® Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. 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