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MICROCIRCUIT DATA SHEET MNLM185BY-1.2-X REV 0A0 MICROPOWER VOLTAGE REFERENCE DIODE General Description The LM185BY-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating over a 10 uA to 20 mA current range, it features exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Since the LM185BY-1.2 band-gap reference uses only transistors and resistors, low noise and good long term stability result. Careful design of the LM185BY-1.2 has made the device exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain of the LM185BY-1.2 makes it useful for micropower circuitry. This voltage reference can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life. Further, the wide operating current allows it to replace older references with a tighter tolerance part. Original Creation Date: 08/15/95 Last Update Date: 04/12/99 Last Major Revision Date: 08/15/95 Industry Part Number LM185BY NS Part Numbers LM185BYH1.2-SMD LM185BYH1.2/883 Prime Die LM185 Controlling Document SEE FEATURES SECTION: Processing MIL-STD-883, Method 5004 Subgrp Description 1 2 3 4 5 6 7 8A 8B 9 10 11 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 Quality Conformance Inspection MIL-STD-883, Method 5005 1 MNLM185BY-1.2-X REV 0A0 MICROCIRCUIT DATA SHEET Features Operating current of 10 uA to 20 mA. 1.0 Ohms max dynamic impedance (Typical). Low temperature coefficient. Low voltage reference-1.235V. CONTROLLING DOCUMENT: LM185BYH1.2-SMD 5962-8759405XA 2 MNLM185BY-1.2-X REV 0A0 MICROCIRCUIT DATA SHEET (Absolute Maximum Ratings) (Note 1) Reverse Current 30mA Forward Current 10mA Operating Temperature Range -55 C to +125 C Maximum Junction Temperature 150 C Storage Temperature -55 C to +150 C Lead Temperature (Soldering, 10 seconds) Thermal Resistance ThetaJA H-Pkg (Still Air) H-Pkg (500LF/Min Air flow) ThetaJC H-Pkg Package Weight (Typical) Note 1: 300 C 300 C/W 139 C/W 57 C/W 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. 3 MNLM185BY-1.2-X REV 0A0 MICROCIRCUIT DATA SHEET Electrical Characteristics DC PARAMETERS SYMBOL Vref PARAMETER Reverse Breakdown Voltage Ir = 10uA Ir = 20uA Ir = 1mA CONDITIONS NOTES PINNAME MIN 1.223 1.205 1.223 1.205 Ir = 20mA 1.223 1.205 Delta Vref/Delta Ir Reverse Breakdown Voltage Change with Current 10uA < Ir < 1mA 20uA < Ir < 1mA 1mA < Ir < 20mA -1.0 -1.5 -10.0 -20.0 Vf Tc Forward Bias Voltage Temperature Coefficient Note 1: If = 2mA 1 -1.0 MAX 1.247 1.26 1.247 1.26 1.247 1.26 1.0 1.5 10.0 20.0 -0.4 50 UNIT V V V V V V mV mV mV mV V SUBGROUPS 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 ppm/ 2, 3 C The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating Tmax and Tmin, divided by Tmax - Tmin. The measured temperatures are -55 C, -40 C, 0 C, 25 C, 70 C, 85 C and 125 C. 4 MNLM185BY-1.2-X REV 0A0 MICROCIRCUIT DATA SHEET Graphics and Diagrams GRAPHICS# 05886HRB2 H02ARE P000363A DESCRIPTION METAL CAN,TO-46,2LD,.100 DIA P.C. (H) (B/I CKT) METAL CAN,TO-46,2LD,.100 DIA P.C. (H)(P/P DWG) METAL CAN (H-1.2), TO-46, 2 LEAD (PINOUT) See attached graphics following this page. 5 N MNLM185BY-1.2-X REV 0A0 MICROCIRCUIT DATA SHEET Revision History Rev 0A0 ECN # Rel Date Originator Rose Malone Changes Archive RETS185X-1.2, Rev. 0A. Update MDS MNLM185BY-X-1.2, Rev. 0AL to MNLM185BY-1.2-X, Rev. 0A0, Fully Released MDS. Updated Discription, Features and Absolute section. Changed nomenclature, verified NSID. Deleted Subgroup 1 from Tc electrical. M0003062 04/12/99 6 |
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