LM4040-N/LM4040Q-N Precision Micropower Shunt Voltage Reference General Description Features Ideal for space critical applications, the LM4040 precision voltage reference is available in the sub-miniature SC70 and SOT-23 surface-mount package. The LM4040's advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4040 easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048V, 2.500V, 3.000V, 4.096V, 5.000V, 8.192V, and 10.000V. The minimum operating current increases from 60 A for the LM4040-2.5 to 100 A for the LM4040-10.0. All versions have a maximum operating current of 15 mA. The LM4040 utilizes fuse and zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than 0.1% (A grade) at 25C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. Also available is the LM4041 with two reverse breakdown voltage versions: adjustable and 1.2V. Please see the LM4041 data sheet. 2.5V/SOT-23 AEC Q-100 Grades 1 and 3 available Small packages: SOT-23, TO-92 and SC70 No output capacitor required Tolerates capacitive loads Fixed reverse breakdown voltages of 2.048V, 2.500V, 3.000V, 4.096V, 5.000V, 8.192V, and 10.000V Key Specifications (LM4040-2.5) Output voltage tolerance (A grade, 25C) 0.1% (max) Low output noise 35 Vrms(typ) (10 Hz to 10 kHz) 60 A to 15 mA Wide operating current range Industrial temperature range -40C to +85C Extended temperature range -40C to +125C Low temperature coefficient 100 ppm/C (max) Applications Portable, Battery-Powered Equipment Data Acquisition Systems Instrumentation Process Control Energy Management Product Testing Automotive Precision Audio Components Connection Diagrams SOT-23 TO-92 SC70 1132301 *This pin must be left floating or connected to pin 2. Top View See NS Package Number MF03A (JEDEC Registration TO-236AB) 1132303 Bottom View See NS Package Number Z03A PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 11323 SNOS633G 1132330 *This pin must be left floating or connected to pin 1. Top View See NS Package Number MAA05A Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Ordering Information for Industrial (I) and Extended (E) Temperature Grades VR Tolerance at 25C and Average VR Temperature Coefficient 2 Package SOT-23 (MF03A) SC70 (MAA05A) TO-92 (Z03A) Reel of 1000 Units Reel of 3000 Units Reel of 1000 Units Reel of 3000 Units Box of 1800 Units 0.1% 100 ppm/C max -40C to +85C (A grade) (I temperature) LM4040AIM3-2.0 LM4040AIM3-2.5 LM4040AIM3-3.0 LM4040AIM3-4.1 LM4040AIM3-5.0 -- LM4040AIM3-10.0 LM4040AIM3X-2.0 LM4040AIM3X-2.5 LM4040AIM3X-3.0 LM4040AIM3X-4.1 LM4040AIM3X-5.0 -- LM4040AIM3X-10.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- LM4040AIZ-2.5 -- LM4040AIZ-4.1 LM4040AIZ-5.0 -- LM4040AIZ-10.0 0.2% 100 ppm/C max -40C to +85C (B grade) (I temperature) LM4040BIM3-2.0 LM4040BIM3-2.5 LM4040BIM3-3.0 LM4040BIM3-4.1 LM4040BIM3-5.0 LM4040BIM3-8.2 LM4040BIM3-10.0 LM4040BIM3X-2.0 LM4040BIM3X-2.5 LM4040BIM3X-3.0 LM4040BIM3X-4.1 LM4040BIM3X-5.0 -- LM4040BIM3X-10.0 LM4040BIM7-2.0 LM4040BIM7-2.5 -- -- LM4040BIM7-5.0 -- -- -- LM4040BIM7X-2.5 -- -- -- -- -- -- LM4040BIZ-2.5 -- LM4040BIZ-4.1 LM4040BIZ-5.0 -- LM4040BIZ-10.0 0.5% 100 ppm/C max -40C to +125C (C grade) (E temperature) LM4040CEM3-2.5 LM4040CEM3-3.0 -- LM4040CEM3-5.0 -- LM4040CEM3X-3.0 -- LM4040CEM3X-5.0 -- -- -- -- -- -- -- -- -- -- -- -- 0.5% 100 ppm/C max -40C to +85C (C grade) (I temperature) LM4040CIM3-2.0 LM4040CIM3-2.5 LM4040CIM3-3.0 LM4040CIM3-4.1 LM4040CIM3-5.0 LM4040CIM3-8.2 LM4040CIM3-10.0 LM4040CIM3X-2.0 LM4040CIM3X-2.5 LM4040CIM3X-3.0 LM4040CIM3X-4.1 LM4040CIM3X-5.0 -- LM4040CIM3X-10.0 LM4040CIM7-2.0 LM4040CIM7-2.5 -- -- -- -- -- -- LM4040CIM7X-2.5 -- -- -- -- -- -- LM4040CIZ-2.5 -- LM4040CIZ-4.1 LM4040CIZ-5.0 -- LM4040CIZ-10.0 1.0% 150 ppm/C max -40C to +125C (D grade) (E temperature) LM4040DEM3-2.0 LM4040DEM3-2.5 LM4040DEM3-3.0 -- LM4040DEM3-5.0 LM4040DEM3X-2.0 LM4040DEM3X-2.5 LM4040DEM3X-3.0 -- LM4040DEM3X-5.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.0% 150 ppm/C max -40C to +85C (D grade) (I temperature) LM4040DIM3-2.0 LM4040DIM3-2.5 LM4040DIM3-3.0 LM4040DIM3-4.1 LM4040DIM3-5.0 LM4040DIM3-8.2 LM4040DIM3-10.0 LM4040DIM3X-2.0 LM4040DIM3X-2.5 LM4040DIM3X-3.0 LM4040DIM3X-4.1 LM4040DIM3X-5.0 LM4040DIM3X-10.0 LM4040DIM7-2.0 LM4040DIM7-2.5 -- -- LM4040DIM7-5.0 -- -- -- -- -- -- -- -- -- -- LM4040DIZ-2.5 -- LM4040DIZ-4.1 LM4040DIZ-5.0 -- LM4040DIZ-10.0 2.0% 150 ppm/C max -40C to +125C (E grade) (E temperature) -- LM4040EEM3-2.5 LM4040EEM3-3.0 -- LM4040EEM3X-2.5 LM4040EEM3X-3.0 -- -- -- -- -- -- -- -- -- 2.0% 150 ppm/C max -40C to +85C (E grade) (I temperature) -- LM4040EIM3-2.5 LM4040EIM3-3.0 -- LM4040EIM3X-2.5 LM4040EIM3X-3.0 LM4040EIM7-2.0 -- -- -- -- -- -- -- -- Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Ordering Information for Automotive AEC Q-100 (Q) Grade 1 and Grade 3 VR Tolerance at 25C and Average VR Temperature Coefficient Temperature Range (TJ) Reel of 1000 Units Reel of 3000 Units Package 0.1% 100 ppm/C max (A grade) -40 C to +85C AEC Grade 3 -- LM4040QAIM3-2.5 -- -- LM4040QAIM3X2.5 -- SOT-23 (MF03A) 0.2% 100 ppm/C max (B grade) -40 C to +85C AEC Grade 3 -- LM4040QBIM3-2.5 -- -- LM4040QBIM3X2.5 -- SOT-23 (MF03A) -40 C to +125C AEC Grade 1 -- LM4040QCEM3-2.5 -- -- -- -- SOT-23 (MF03A) -40 C to +85C AEC Grade 3 -- LM4040QCIM3-2.5 -- -- LM4040QCIM3X2.5 -- SOT-23 (MF03A) -40 C to +125C AEC Grade 1 -- LM4040QDEM3-2.5 -- -- -- -- SOT-23 (MF03A) -40 C to +85C AEC Grade 3 -- LM4040QDIM3-2.5 -- -- LM4040QDIM3X-2.5 -- SOT-23 (MF03A) -40 C to +125C AEC Grade 1 -- LM4040QEEM3-2.5 -- -- -- -- SOT-23 (MF03A) -40 C to +85C AEC Grade 3 -- LM4040QEIM3-2.5 -- -- LM4040QEIM3X2.5 -- SOT-23 (MF03A) 0.5% 100 ppm/C max (C grade) 1.0% 150 ppm/C max (D grade) 2.0% 150 ppm/C max (E grade) Copyright (c) 1999-2012, Texas Instruments Incorporated 3 LM4040-N/LM4040Q-N SOT-23 AND SC70 Package Marking Information Only three fields of marking are possible on the SOT-23's and SC70's small surface. This table gives the meaning of the three fields. First Field: R = Reference Second Field: Voltage Option J = 2.048V Voltage Option 2 = 2.500V Voltage Option K = 3.000V Voltage Option 4 = 4.096V Voltage Option 5 = 5.000V Voltage Option 8 = 8.192V Voltage Option 0 = 10.000V Voltage Option Third Field: Initial Reverse Breakdown Voltage or Reference Voltage Tolerance A = 0.1% B = 0.2% C = +0.5% D = 1.0% E = 2.0% 4 Part Marking Field Definition RJA (SOT-23 only) R2A (SOT-23 only) RKA (SOT-23 only R4A (SOT-23 only) R5A (SOT-23 only) R8A (SOT-23 only) R0A (SOT-23 only) Reference, 2.048V, 0.1% Reference, 2.500V, 0.1% Reference, 3.000V, 0.1% Reference, 4.096V, 0.1% Reference, 5.000V, 0.1% Reference, 8.192V, 0.1% Reference, 10.000V, 0.1% RJB R2B RKB R4B R5B R8B (SOT-23 only) R0B (SOT-23 only) Reference, 2.048V, 0.2% Reference, 2.500V, 0.2% Reference, 3.000V, 0.2% Reference, 4.096V, 0.2% Reference, 5.000V, 0.2% Reference, 8.192V, 0.2% Reference, 10.000V, 0.2% RJC R2C RKC R4C R5C R8C (SOT-23 only) R0C (SOT-23 only) Reference, 2.048V, 0.5% Reference, 2.500V, 0.5% Reference, 3.000V, 0.5% Reference, 4.096V, 0.5% Reference, 5.000V, 0.5% Reference, 8.192V, 0.5% Reference, 10.000V, 0.5% RJD R2D RKD R4D R5D R8D (SOT-23 only) R0D (SOT-23 only) Reference, 2.048V, 1.0% Reference, 2.500V, 1.0% Reference, 3.000V, 1.0% Reference, 4.096V, 1.0% Reference, 5.000V, 1.0% Reference, 8.192V, 1.0% Reference, 10.000V, 1.0% RJE R2E RKE Reference, 2.048V, 2.0% Reference, 2.500V, 2.0% Reference, 3.000V, 2.0% Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. Reverse Current Forward Current Power Dissipation (TA = 25C) (Note 2) SOT-23 (M3) Package TO-92 (Z) Package SC-70 (M7) Package Storage Temperature Soldering Temperature (Note 9) SOT-23 (M3) Package Peak Reflow (30 sec) TO-92 (Z) Package Soldering (10 sec) SC-70 (M7) Package Peak Reflow (30 sec) ESD Susceptibility Human Body Model (Note 3) Machine Model (Note 3) Operating Ratings 20 mA 10 mA 306 mW 550 mW 241 mW -65C to +150C +260C +260C +260C 2 kV 200V (Note 1, Note 2) (Tmin TA Tmax) Temperature Range Industrial Temperature Range Extended Temperature Range -40C TA +85C -40C TA +125C Reverse Current LM4040-2.0 60 A to 15 mA LM4040-2.5 60 A to 15 mA LM4040-3.0 62 A to 15 mA LM4040-4.1 68 A to 15 mA LM4040-5.0 74 A to 15 mA LM4040-8.2 91 A to 15 mA LM4040-10.0 100 A to 15 mA LM4040-2.0 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. Symbol VR Parameter Conditions Reverse Breakdown Voltage IR = 100 A Reverse Breakdown Voltage Tolerance (Note 6) IR = 100 A Typical (Note 4) LM4040AIM3 LM4040AIZ -- Limits (Note 5) LM4040BIM3 LM4040BIZ LM4040BIM7 Limits (Note 5) 2.048 V 2.0 4.1 mV (max) 15 17 mV (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) IR = 100 A Copyright (c) 1999-2012, Texas Instruments Incorporated 60 60 A (max) 65 65 A (max) 100 100 ppm/C (max) 20 15 15 Units ppm/C ppm/C 5 LM4040-N/LM4040Q-N Symbol Parameter Typical (Note 4) Conditions LM4040AIM3 LM4040AIZ -- Limits (Note 5) LM4040BIM3 LM4040BIZ LM4040BIM7 Limits (Note 5) Units 0.8 0.8 mV (max) 1.0 1.0 mV (max) 6.0 6.0 mV (max) 8.0 8.0 mV (max) 0.8 0.8 0.3 VR/IR ZR eN VR VHYST Reverse Breakdown Voltage Change with Operating Current Change (Note 7) IRMIN IR 1 mA 2.5 1 mA IR 15 mA I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR IR = 100 A Wideband Noise mV 10 Hz f 10 kHz mV 0.3 (max) 35 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % LM4040-2.0 Electrical Characteristics VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of 0.5%, 1.0% and 2.0%, respectively. Symbol Parameter Conditions Reverse Breakdown IR = 100 A Voltage VR Typical (Note 4) LM4040CIM3 LM4040CIZ LM4040CIM7 Limits (Note 5) LM4040DIM3 LM4040DIZ LM4040DIM7 Limits (Note 5) -- LM4040EIZ LM4040EIM7 Limits (Note 5) 2.048 Reverse Breakdown Voltage Tolerance IR = 100 A (Note 6) V 10 20 41 mV (max) 23 40 60 mV (max) 60 65 65 A (max) 65 70 70 A (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown Voltage VR/T Temperature Coefficient (Note 6) IR = 10 mA 20 IR = 1 mA 15 IR = 100 A 15 ppm/C 100 150 150 VR/IR ZR eN 6 Reverse Dynamic Impedance Wideband Noise IR = 1 mA, f = 120 Hz IAC = 0.1 IR IR = 100 A 10 Hz f 10 kHz mV 0.8 1.0 1.0 mV (max) 1.0 1.2 1.2 mV (max) 6.0 8.0 8.0 mV (max) 8.0 10.0 10.0 mV (max) 2.5 mV 0.3 0.9 35 ppm/C (max) ppm/C 0.3 Reverse Breakdown IRMIN IR 1 mA Voltage Change with Operating Current Change (Note 7) 1 mA IR 15 mA Units 1.1 1.1 (max) Vrms Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Symbol VR VHYST Parameter Conditions Typical (Note 4) LM4040CIM3 LM4040CIZ LM4040CIM7 Limits (Note 5) LM4040DIM3 LM4040DIZ LM4040DIM7 Limits (Note 5) -- LM4040EIZ LM4040EIM7 Limits (Note 5) Units Reverse Breakdown t = 1000 hrs Voltage Long Term T = 25C 0.1C Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % T = -40C to +125C LM4040-2.0 Electrical Characteristics VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'E' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of 0.5%, 1.0% and 2.0%, respectively. Symbol Parameter Conditions Reverse Breakdown IR = 100 A Voltage VR Typical (Note 4) LM4040CEM3 LM4040DEM3 LM4040EEM3 Limits Limits Limits (Note 5) (Note 5) (Note 5) 2.048 Reverse Breakdown Voltage Tolerance IR = 100 A (Note 6) V 10 20 41 mV (max) 30 50 70 mV (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown Voltage VR/T Temperature Coefficient (Note 6) VR/IR Reverse Dynamic Impedance eN Wideband Noise VR VHYST 60 65 65 A (max) 68 73 73 A (max) 100 150 150 ppm/C (max) IR = 10 mA 20 IR = 1 mA 15 IR = 100 A 15 ppm/C 0.3 mV Reverse Breakdown IRMIN IR 1 mA Voltage Change with Operating Current Change (Note 7) 1 mA IR 15 mA ZR Units IR = 1 mA, f = 120 Hz, IAC = 0.1 IR IR = 100 A ppm/C 0.8 1.0 1.0 mV (max) 1.0 1.2 1.2 mV (max) 2.5 mV 6.0 8.0 8.0 mV (max) 8.0 10.0 10.0 mV (max) 0.9 1.1 1.1 (max) 0.3 35 Vrms Reverse Breakdown t = 1000 hrs Voltage Long Term T = 25C 0.1C Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % 10 Hz f 10 kHz T = -40C to +125C Copyright (c) 1999-2012, Texas Instruments Incorporated 7 LM4040-N/LM4040Q-N LM4040-2.5 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' (AEC Grade 3) Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. LM4040AIM3 LM4040AIZ Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 100 A Typical (Note 4) LM4040BIM3 LM4040BIZ LM4040BIM7 -- LM4040QAIM3 LM4040QBIM3 Limits Limits (Note 5) (Note 5) 2.500 IR = 100 A V 2.5 5.0 mV (max) 19 21 mV (max) 60 60 A (max) 65 65 A (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 100 A R 20 15 ppm/C 100 100 15 VR/IR ZR eN VR VHYST 8 IRMIN IR 1 mA I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR Wideband Noise mV 0.8 0.8 mV (max) 1.0 1.0 mV (max) 6.0 6.0 mV (max) 8.0 8.0 mV (max) 0.8 0.8 2.5 1 mA IR 15 mA IR = 100 A 10 Hz f 10 kHz ppm/C (max) ppm/C 0.3 Reverse Breakdown Voltage Change with Operating Current Change (Note 7) Units mV 0.3 (max) 35 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-2.5 Electrical Characteristics VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'I' (AEC Grade 3) Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of 0.5%, 1.0% and 2.0%, respectively. Symbol Parameter Conditions Reverse Breakdown IR = 100 A Voltage VR Typical (Note 4) LM4040CIZ LM4040DIZ LM4040EIZ LM4040CIM3 LM4040DIM3 LM4040EIM3 LM4040CIM7 LM4040DIM7 LM4040EIM7 LM4040QCIM3 LM4040QDIM3 LM4040QEIM3 Limits Limits Limits (Note 5) (Note 5) (Note 5) 2.500 Reverse Breakdown Voltage Tolerance IR = 100 A (Note 6) V 12 25 50 mV (max) 29 49 74 mV (max) 60 65 65 A (max) 65 70 70 A (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown Voltage VR/T Temperature Coefficient (Note 6) IR = 10 mA 20 IR = 1 mA 15 IR = 100 A 15 ppm/C 100 150 150 VR/IR ZR Reverse Dynamic Impedance eN Wideband Noise VR VHYST IR = 1 mA, f = 120 Hz IAC = 0.1 IR IR = 100 A mV 0.8 1.0 1.0 mV (max) 1.0 1.2 1.2 mV (max) 6.0 8.0 8.0 mV (max) 8.0 10.0 10.0 mV (max) 0.9 1.1 1.1 (max) 2.5 R ppm/C (max) ppm/C 0.3 Reverse Breakdown IRMIN IR 1 mA Voltage Change with Operating Current Change (Note 7) 1 mA I 15 mA Units mV 0.3 35 Vrms Reverse Breakdown t = 1000 hrs Voltage Long Term T = 25C 0.1C Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % 10 Hz f 10 kHz T= -40C to +125C Copyright (c) 1999-2012, Texas Instruments Incorporated 9 LM4040-N/LM4040Q-N LM4040-2.5 Electrical Characteristics VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'E' (AEC Grade 1) Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of 0.5%, 1.0% and 2.0%, respectively. Symbol Parameter Conditions Reverse Breakdown IR = 100 A Voltage VR LM4040CEM3 LM4040DEM3 LM4040EEM3 Typical LM4040QCEM3 LM4040QDEM3 LM4040QEEM3 (Note 4) Limits Limits Limits (Note 5) (Note 5) (Note 5) 2.500 Reverse Breakdown Voltage Tolerance IR = 100 A (Note 6) V 12 25 50 mV (max) 38 63 88 mV (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown Voltage VR/T Temperature Coefficient (Note 6) IR = 10 mA 20 IR = 1 mA 15 IR = 100 A 15 60 65 65 A (max) 68 73 73 A (max) 100 150 150 ppm/C (max) ppm/C ppm/C 0.3 VR/IR Reverse Breakdown IRMIN IR 1 mA Voltage Change with Operating Current Change (Note 7) 1 mA I 15 mA ZR Reverse Dynamic Impedance eN Wideband Noise VR VHYST 10 IR = 1 mA, f = 120 Hz, IAC = 0.1 IR IR = 100 A mV 0.8 1.0 1.0 mV (max) 1.0 1.2 1.2 mV (max) 6.0 8.0 8.0 mV (max) 8.0 10.0 10.0 mV (max) 0.9 1.1 1.1 (max) 2.5 R Units mV 0.3 35 Vrms Reverse Breakdown t = 1000 hrs Voltage Long Term T = 25C 0.1C Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % 10 Hz f 10 kHz T= -40C to +125C Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-3.0 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 100 A Typical (Note 4) LM4040AIM3 LM4040AIZ -- Limits (Note 5) LM4040BIM3 LM4040BIZ LM4040BIM7 Limits (Note 5) Units 3.0 6.0 mV (max) 22 26 mV (max) 3.000 IR = 100 A V A 47 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) IR = 100 A VR/IR ZR eN VR VHYST Reverse Breakdown Voltage Change with Operating Current Change (Note 7) 62 A (max) 67 67 A (max) 100 100 ppm/C (max) 20 15 ppm/C 15 ppm/C 0.6 mV IRMIN IR 1 mA 0.8 0.8 mV (max) 1.1 1.1 mV (max) 2.7 1 mA IR 15 mA I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR Wideband Noise 62 IR = 100 A 10 Hz f 10 kHz mV 6.0 6.0 mV (max) 9.0 9.0 mV (max) 0.4 0.9 0.9 (max) 35 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated 11 LM4040-N/LM4040Q-N LM4040-3.0 Electrical Characteristics VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of 0.5%, 1.0% and 2.0%, respectively. Symbol Parameter Conditions Reverse Breakdown IR = 100 A Voltage VR Typical (Note 4) LM4040CIM3 LM4040CIZ LM4040CIM7 Limits (Note 5) LM4040DIM3 LM4040DIZ LM4040DIM7 Limits (Note 5) LM4040EIM7 LM4040EIZ -- Limits (Note 5) 3.000 Reverse Breakdown Voltage Tolerance IR = 100 A (Note 6) V 15 30 60 mV (max) 34 59 89 mV (max) 60 65 65 A (max) 65 70 70 A (max) 100 150 150 ppm/C (max) A 45 IRMIN Minimum Operating Current Average Reverse Breakdown Voltage VR/T Temperature Coefficient (Note 6) VR/IR ZR eN VR VHYST 12 IR = 10 mA 20 IR = 1 mA 15 IR = 100 A 15 ppm/C 0.4 mV Reverse Breakdown IRMIN IR 1 mA Voltage Change with Operating Current Change (Note 7) 1 mA IR 15 mA Reverse Dynamic Impedance Units IR = 1 mA, f = 120 Hz IAC = 0.1 IR IR = 100 A ppm/C 0.8 1.1 1.1 mV (max) 1.1 1.3 1.3 mV (max) 2.7 mV 6.0 8.0 8.0 mV (max) 9.0 11.0 11.0 mV (max) 0.4 0.9 1.2 1.2 (max) 35 Vrms Reverse Breakdown t = 1000 hrs Voltage Long Term T = 25C 0.1C Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % Wideband Noise 10 Hz f 10 kHz T = -40C to +125C Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-3.0 Electrical Characteristics VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'E' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of 0.5%, 1.0% and 2.0%, respectively. Symbol Parameter Conditions Reverse Breakdown IR = 100 A Voltage VR Typical (Note 4) LM4040CEM3 LM4040DEM3 LM4040EEM3 Limits Limits Limits (Note 5) (Note 5) (Note 5) 3.000 Reverse Breakdown Voltage Tolerance IR = 100 A (Note 6) V 15 30 60 mV (max) 45 75 105 mV (max) A 47 IRMIN Minimum Operating Current Average Reverse Breakdown Voltage VR/T Temperature Coefficient (Note 6) VR/IR Reverse Dynamic Impedance eN Wideband Noise VR VHYST 62 67 67 A (max) 70 75 75 A (max) 100 150 150 ppm/C (max) IR = 10 mA 20 IR = 1 mA 15 IR = 100 A 15 ppm/C 0.4 mV Reverse Breakdown IRMIN IR 1 mA Voltage Change with Operating Current Change (Note 7) 1 mA IR 15 mA ZR Units IR = 1 mA, f = 120 Hz, IAC = 0.1 IR IR = 100 A ppm/C 0.8 1.1 1.1 mV (max) 1.1 1.3 1.3 mV (max) 2.7 mV 6.0 8.0 8.0 mV (max) 9.0 11.0 11.0 mV (max) 0.9 1.2 1.2 (max) 0.4 35 Vrms Reverse Breakdown t = 1000 hrs Voltage Long Term T = 25C 0.1C Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % 10 Hz f 10 kHz T = -40C to +125C Copyright (c) 1999-2012, Texas Instruments Incorporated 13 LM4040-N/LM4040Q-N LM4040-4.1 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 100 A Typical (Note 4) LM4040AIM3 LM4040AIZ -- Limits (Note 5) LM4040BIM3 LM4040BIZ LM4040BIM7 Limits (Note 5) Units 4.1 8.2 mV (max) 31 35 mV (max) 4.096 IR = 100 A V A 50 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) IR = 100 A VR/IR ZR eN VR VHYST 14 Reverse Breakdown Voltage Change with Operating Current Change (Note 7) 68 A (max) 73 73 A (max) 100 100 ppm/C (max) 30 20 ppm/C 20 ppm/C 0.5 mV IRMIN IR 1 mA 0.9 0.9 mV (max) 1.2 1.2 mV (max) 3.0 1 mA IR 15 mA I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR Wideband Noise 68 IR = 100 A 10 Hz f 10 kHz mV 7.0 7.0 mV (max) 10.0 10.0 mV (max) 0.5 1.0 1.0 (max) 80 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-4.1 Electrical Characteristics VR Tolerance Grades 'C' and 'D'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C and D designate initial Reverse Breakdown Voltage tolerances of 0.5% and 1.0%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 100 A Typical (Note 4) LM4040CIM3 LM4040CIZ LM4040CIM7 Limits (Note 5) LM4040DIM3 LM4040DIZ LM4040DIM7 Limits (Note 5) Units 20 41 mV (max) 47 81 mV (max) 68 73 A (max) 73 78 A (max) 4.096 IR = 100 A V A 50 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 100 A R 30 20 ppm/C 100 150 20 ppm/C 0.5 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) IRMIN IR 1 mA ZR I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR eN Wideband Noise VR VHYST mV 0.9 1.2 mV (max) 1.2 1.5 mV (max) 7.0 9.0 mV (max) 10.0 13.0 mV (max) 1.0 1.3 (max) 3.0 1 mA IR 15 mA IR = 100 A 10 Hz f 10 kHz ppm/C (max) mV 0.5 80 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated 15 LM4040-N/LM4040Q-N LM4040-5.0 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 100 A Typical (Note 4) LM4040AIM3 LM4040AIZ -- Limits (Note 5) LM4040BIM3 LM4040BIZ LM4040BIM7 Limits (Note 5) Units 5.0 10 mV (max) 38 43 mV (max) 5.000 IR = 100 A V A 54 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) IR = 100 A VR/IR ZR eN VR VHYST 16 Reverse Breakdown Voltage Change with Operating Current Change (Note 7) 74 A (max) 80 80 A (max) 100 100 ppm/C (max) 30 20 ppm/C 20 ppm/C 0.5 mV IRMIN IR 1 mA 1.0 1.0 mV (max) 1.4 1.4 mV (max) 3.5 1 mA IR 15 mA I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR Wideband Noise 74 IR = 100 A 10 Hz f 10 kHz mV 8.0 8.0 mV (max) 12.0 12.0 mV (max) 0.5 1.1 1.1 (max) 80 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-5.0 Electrical Characteristics VR Tolerance Grades 'C' and 'D'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C and D designate initial Reverse Breakdown Voltage tolerances of 0.5% and 1.0%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 100 A Typical (Note 4) LM4040CIM3 LM4040CIZ LM4040CIM7 Limits (Note 5) LM4040DIM3 LM4040DIZ LM4040DIM7 Limits (Note 5) Units 25 50 mV (max) 58 99 mV (max) 74 79 A (max) 80 85 A (max) 5.000 IR = 100 A V A 54 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 100 A R 30 20 ppm/C 100 150 20 ppm/C 0.5 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) IRMIN IR 1 mA ZR I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR eN Wideband Noise VR VHYST mV 1.0 1.3 mV (max) 1.4 1.8 mV (max) 8.0 10.0 mV (max) 12.0 15.0 mV (max) 1.1 1.5 (max) 3.5 1 mA IR 15 mA IR = 100 A 10 Hz f 10 kHz ppm/C (max) mV 0.5 80 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 100 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated 17 LM4040-N/LM4040Q-N LM4040-5.0 Electrical Characteristics VR Tolerance Grades 'C' and 'D'; Temperature Grade 'E' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C and D designate initial Reverse Breakdown Voltage tolerances of 0.5% and 1.0%, respectively. Typical Symbol Parameter Conditions Reverse Breakdown Voltage IR = 100 A VR LM4040CEM3 LM4040DEM3 Limits Limits (Note 5) (Note 5) V 5.000 Reverse Breakdown Voltage IR = 100 A Tolerance (Note 6) 25 50 mV (max) 75 125 mV (max) 74 79 A (max) 83 88 A (max) A 54 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 100 A R 30 20 ppm/C 100 150 20 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) ZR Reverse Dynamic Impedance eN Wideband Noise VR VHYST 18 mV 1.0 1.0 mV (max) 1.4 1.8 mV (max) 8.0 8.0 mV (max) 12.0 15.0 mV (max) 1.1 1.1 (max) 3.5 1 mA IR 15 mA IR = 1 mA, f = 120 Hz, IAC = 0.1 IR IR = 100 A ppm/C (max) ppm/C 0.5 IRMIN IR 1 mA Units mV 0.5 80 Vrms t = 1000 hrs Reverse Breakdown Voltage T = 25C 0.1C Long Term Stability IR = 100 A 120 ppm Thermal Hysteresis (Note 8) 0.08 % 10 Hz f 10 kHz T = -40C to +125C Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-8.2 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 150 A Typical (Note 4) LM4040AIM3 LM4040AIZ Limits (Note 5) LM4040BIM3 LM4040BIZ Limits (Note 5) 8.2 16 mV (max) 61 70 mV (max) 91 91 A (max) 95 95 A (max) 8.192 IR = 150 A V A 67 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 150 A R 40 20 ppm/C 100 100 20 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) ZR I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR eN Wideband Noise VR VHYST mV 1.3 1.3 mV (max) 2.5 2.5 mV (max) 10.0 10.0 mV (max) 18.0 18.0 mV (max) 1.5 1.5 (max) 7.0 1 mA IR 15 mA IR = 150 A 10 Hz f 10 kHz ppm/C (max) ppm/C 0.6 IRMIN IR 1 mA Units mV 0.6 130 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 150 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated 19 LM4040-N/LM4040Q-N LM4040-8.2 Electrical Characteristics VR Tolerance Grades 'C' and 'D'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C and D designate initial Reverse Breakdown Voltage tolerances of 0.5% and 1.0%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 150 A Typical (Note 4) LM4040CIM3 LM4040CIZ Limits (Note 5) LM4040DIM3 LM4040DIZ Limits (Note 5) 41 82 mV (max) 94 162 mV (max) 91 96 A (max) 95 100 A (max) 8.192 IR = 150 A V A 67 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 150 A R 40 20 ppm/C 100 150 20 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) ZR I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR eN Wideband Noise VR VHYST 20 mV 1.3 1.7 mV (max) 2.5 3.0 mV (max) 10.0 15.0 mV (max) 18.0 24.0 mV (max) 1.5 1.9 (max) 7.0 1 mA IR 15 mA IR = 150 A 10 Hz f 10 kHz ppm/C (max) ppm/C 0.6 IRMIN IR 1 mA Units mV 0.6 130 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 150 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N LM4040-10.0 Electrical Characteristics VR Tolerance Grades 'A' and 'B'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades A and B designate initial Reverse Breakdown Voltage tolerances of 0.1% and 0.2%, respectively. Symbol Parameter Reverse Breakdown Voltage VR Reverse Breakdown Voltage Tolerance (Note 6) Conditions IR = 150 A Typical (Note 4) LM4040AIM3 LM4040AIZ Limits (Note 5) LM4040BIM3 LM4040BIZ Limits (Note 5) 10 20 mV (max) 75 85 mV (max) 100 100 A (max) 103 103 A (max) 10.00 IR = 150 A V A 75 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 150 A R 40 20 ppm/C 100 100 20 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) ZR I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR eN Wideband Noise VR VHYST mV 1.5 1.5 mV (max) 3.5 3.5 mV (max) 12.0 12.0 mV (max) 23.0 23.0 mV (max) 1.7 1.7 (max) 8.0 1 mA IR 15 mA IR = 150 A 10 Hz f 10 kHz ppm/C (max) ppm/C 0.8 IRMIN IR 1 mA Units mV 0.7 180 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 150 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated 21 LM4040-N/LM4040Q-N LM4040-10.0 Electrical Characteristics VR Tolerance Grades 'C' and 'D'; Temperature Grade 'I' Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25C. The grades C and D designate initial Reverse Breakdown Voltage tolerances of 0.5% and 1.0%, respectively. Symbol VR Parameter Conditions Reverse Breakdown Voltage IR = 150 A Reverse Breakdown Voltage Tolerance (Note 6) IR = 150 A Typical (Note 4) LM4040CIM3 LM4040CIZ Limits (Note 5) LM4040DIM3 LM4040DIZ Limits (Note 5) 10.00 V 50 100 mV (max) 115 198 mV (max) 100 110 A (max) 103 113 A (max) A 75 IRMIN Minimum Operating Current Average Reverse Breakdown IR = 10 mA IR = 1 mA VR/T Voltage Temperature Coefficient (Note 6) I = 150 A R 40 20 ppm/C 100 150 20 Reverse Breakdown Voltage VR/IR Change with Operating Current Change (Note 7) ZR I = 1 mA, f = 120 Hz, Reverse Dynamic Impedance R IAC = 0.1 IR eN Wideband Noise VR VHYST 22 mV 1.5 2.0 mV (max) 3.5 4.0 mV (max) 12.0 18.0 mV (max) 23.0 29.0 mV (max) 1.7 2.3 (max) 8.0 1 mA IR 15 mA IR = 150 A 10 Hz f 10 kHz ppm/C (max) ppm/C 0.8 IRMIN IR 1 mA Units mV 0.7 180 Vrms Reverse Breakdown Voltage Long Term Stability t = 1000 hrs T = 25C 0.1C IR = 150 A 120 ppm Thermal Hysteresis (Note 8) T = -40C to +125C 0.08 % Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Electrical Characteristics(Notes) 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), JA (junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/JA or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4040, TJmax = 125C, and the typical thermal resistance (JA), when board mounted, is 326C/W for the SOT-23 package, and 180C/W with 0.4 lead length and 170C/W with 0.125 lead length for the TO-92 package and 415C/W for the SC70 Package. Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k resistor into each pin. The machine model is a 200 pF capacitor discharged directly into each pin. Note 4: Typicals are at TJ = 25C and represent most likely parametric norm. Note 5: Limits are 100% production tested at 25C. Limits over temperature are guaranteed through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate National's AOQL. Note 6: The boldface (over-temperature) limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse Breakdown Voltage Tolerance [(VR/T)(maxT)(VR)]. Where, VR/T is the VR temperature coefficient, maxT is the maximum difference in temperature from the reference point of 25C to T MIN or TMAX, and VR is the reverse breakdown voltage. The total over-temperature tolerance for the different grades in the industrial temperature range where maxT = 65C is shown below: A-grade: 0.75% = 0.1% 100 ppm/C x 65C B-grade: 0.85% = 0.2% 100 ppm/C x 65C C-grade: 1.15% = 0.5% 100 ppm/C x 65C D-grade: 1.98% = 1.0% 150 ppm/C x 65C E-grade: 2.98% = 2.0% 150 ppm/C x 65C The total over-temperature tolerance for the different grades in the exteded temperature range where max T = 100 C is shown below: C-grade: 1.5% = 0.5% 100 ppm/C x 100C D-grade: 2.5% = 1.0% 150 ppm/C x 100C E-grade: 3.5% = 2.0% 150 ppm/C x 100C Therefore, as an example, the A-grade LM4040-2.5 has an over-temperature Reverse Breakdown Voltage tolerance of 2.5V x 0.75% = 19 mV. Note 7: Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change must be taken into account separately. Note 8: Thermal hysteresis is defined as the difference in voltage measured at +25C after cycling to temperature -40C and the 25C measurement after cycling to temperature +125C. Note 9: Peak Reflow Temperatures for Surface Mount devices are defined in "Absolute Maximum Ratings for Soldering", Literature Number: SNOA549C Copyright (c) 1999-2012, Texas Instruments Incorporated 23 LM4040-N/LM4040Q-N Typical Performance Characteristics Temperature Drift for Different Average Temperature Coefficient Output Impedance vs Frequency 1132310 1132304 Output Impedance vs Frequency Reverse Characteristics and Minimum Operating Current 1132311 1132312 Noise Voltage vs Frequency 1132313 24 Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Start-Up Characteristics LM4040-2.5 RS = 30k 1132305 1132307 LM4040-5.0 RS = 30k LM4040-10.0 1132308 RS = 30k 1132309 Functional Block Diagram 1132314 Copyright (c) 1999-2012, Texas Instruments Incorporated 25 LM4040-N/LM4040Q-N Applications Information The LM4040 is a precision micro-power curvature-corrected bandgap shunt voltage reference. For space critical applications, the LM4040 is available in the sub-miniature SOT-23 and SC70 surface-mount package. The LM4040 has been designed for stable operation without the need of an external capacitor connected between the "+" pin and the "-" pin. If, however, a bypass capacitor is used, the LM4040 remains stable. Reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048V, 2.500V, 3.000V, 4.096V, 5.000V, 6.000, 8.192V, and 10.000V. The minimum operating current increases from 60 A for the LM4040-2.048 and LM4040-2.5 to 100 A for the LM4040-10.0. All versions have a maximum operating current of 15 mA. LM4040s in the SOT-23 packages have a parasitic Schottky diode between pin 2 (-) and pin 3 (Die attach interface contact). Therefore, pin 3 of the SOT-23 package must be left floating or connected to pin 2. LM4040s in the SC70 have a parasitic Schottky diode between pin 1 (-) and pin 2 (Die attach interface contact). Therefore, pin 2 must be left floating or connected to pin1. The 4.096V version allows single +5V 12-bit ADCs or DACs to operate with an LSB equal to 1 mV. For 12-bit ADCs or DACs that operate on supplies of 10V or greater, the 8.192V version gives 2 mV per LSB. The typical thermal hysteresis specification is defined as the change in +25C voltage measured after thermal cycling. The device is thermal cycled to temperature -40C and then measured at 25C. Next the device is thermal cycled to temperature +125C and again measured at 25C. The resulting VOUT delta shift between the 25C measurements is thermal hysteresis. Thermal hysteresis is common in precision references and is induced by thermal-mechanical package stress. Changes in environmental storage temperature, operating temperature and board mounting temperature are all factors that can contribute to thermal hysteresis. In a conventional shunt regulator application (Figure 1) , an external series resistor (RS) is connected between the supply voltage and the LM4040. RS determines the current that flows through the load (IL) and the LM4040 (IQ). Since load current and supply voltage may vary, RS should be small enough to supply at least the minimum acceptable IQ to the LM4040 even when the supply voltage is at its minimum and the load current is at its maximum value. When the supply voltage is at its maximum and IL is at its minimum, RS should be large enough so that the current flowing through the LM4040 is less than 15 mA. RS is determined by the supply voltage, (VS), the load and operating current, (IL and IQ), and the LM4040's reverse breakdown voltage, VR. Typical Applications 1132315 FIGURE 1. Shunt Regulator 26 Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N 1132316 **Ceramic monolithic *Tantalum FIGURE 2. LM4040-4.1's Nominal 4.096 breakdown voltage gives ADC12451 1 mV/LSB Copyright (c) 1999-2012, Texas Instruments Incorporated 27 LM4040-N/LM4040Q-N 1132317 FIGURE 3. Bounded amplifier reduces saturation-induced delays and can prevent succeeding stage damage. Nominal clamping voltage is 11.5V (LM4040's reverse breakdown voltage +2 diode VF). 1132318 FIGURE 4. Protecting Op Amp input. The bounding voltage is 4V with the LM4040-2.5 (LM4040's reverse breakdown voltage + 3 diode VF). 28 Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N 1132319 FIGURE 5. Precision 4.096V Reference 1132321 1132322 FIGURE 6. Precision 1 A to 1 mA Current Sources Copyright (c) 1999-2012, Texas Instruments Incorporated 29 LM4040-N/LM4040Q-N Physical Dimensions inches (millimeters) unless otherwise noted Plastic Surface Mount Package (M3) NS Package Number MF03A (JEDEC Registration TO-236AB) 30 Copyright (c) 1999-2012, Texas Instruments Incorporated LM4040-N/LM4040Q-N Plastic Package (Z) NS Package Number Z03A Molded Package (SC70) NS Package Number MAA05A Copyright (c) 1999-2012, Texas Instruments Incorporated 31 Notes Copyright (c) 1999-2012, Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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